Supplementary Material Genetic Screening of Anderson-Fabry Disease in Probands Referred from Multi-specialty Clinics. Valentina Favalli, Eliana Disabella, Mariadelfina Molinaro, Anna Scarabotto, Alessandra Serio, Maurizia Grasso, Nupoor Narula, Carmela Giorgianni, Clelia Caspani, Monica Concardi, Manuela Agozzino, Calogero Giordano, Alexandra Smirnova, Takahide Kodama, Lorenzo Giuliani, Elena Antoniazzi, Riccardo Borroni, Camilla Vassallo, Filippo Mangione, Laura Scelsi, Stefano Ghio, Carlo Pellegrini, Marialuisa Zedde, Laura Fancellu, GianPietro Sechi, Antonello Ganau, Stefania Piga, Annarita Colucci, Daniela Concolino, Maria Teresa Di Mascio, Danilo Toni, Marina Diomedi, Claudio Rapezzi, Elena Biagini, Massimiliano Marini, Maurizia Rasura, Maurizio Melis, Antonia Nucera, Donata Guidetti, Michelangelo Mancuso, Umberto Scoditti, Pamela Cassini, Jagat Narula, Luigi Tavazzi, Eloisa Arbustini 1 METHODS SUPPLEMENT. GENETIC TESTING GLA gene The seven exons of the GLA gene were amplified from peripheral blood-derived genomic deoxyribonucleic acid by means of polymerase chain reaction. The polymerase chain reaction fragments were analyzed by means of denaturing highperformance liquid chromatography using the wave deoxyribonucleic acid fragment analysis system (Transgenomic, San Jose, California). Heteroduplex fragments were purified (QIAquick Kit, Qiagen, Santa Clarita, California) and then sequenced using a BigDye-terminator cycle sequencing system (ABI PRISM, Applied Biosystems, Foster City, California). Reference sequence used in the study is ENST00000218516. Definition of mutations and variants Criteria for defining genetic variants as pathogenic were: Nonsynonymous genetic variant, both known and previously demonstrated to cause AFD. Novel proven to be associated with low a-GAL activity and/or intracellular GB3 accumulation. Truncation-predicting mutation and in-frame deletions predicting loss of key residues for the function of the protein. Mutations predicting the substitution of Cysteine (Cys) residues, both involved in disulfide bonds (52-94; 56-63; 202-223; 378-382) and catalytic sites (142-172) as well as unpaired Cys (90 and 174). Absence of the variant in a large number of controls (1000 Genomes Project, Exome Variant Server (EVS) and dbSNP137) or minor allele frequency (MAF) <0.01. Conservation of the affected amino acid in different species through evolution (conservation score); Predicted pathogenicity (Polyphen 2, SIFT, Mutation Taster). Pathologic study of affected tissue/s demonstrating intracellular GB3 accumulation using electron microscopy and immunohistochemistry. Segregation studies in families demonstrating that mutation carriers show disease manifestations. Consultation of the GLA mutation database: http://www.genomed.org/lovd2/variants.php?select_db=GLA&action=view_all http://fabry-database.org/mutants/ Multigene panels in patients with prominent left ventricular hypertrophy For the Miseq Illumina we used a custom designed panel with Nextera Rapid Capture Sequencing Kit v2. After library preparation with Nextera tagmentation method, barcodes were added and sample pulled. Next, libraries were denatured and biotin-labeled probes specific to the targeted region were used for Hybridization. Biotinylated DNA fragments bound to the streptavidin-coated beads were magnetically pulled down from the solution. The enriched DNA fragments were then hybridized and prepared for a second capture. Twelve samples per run were sequenced, according to Illumina preparation protocols. Sequences were analyzed by mapping all of the generated sequencing reads to the hg19 human genome reference (UCSC) with dbSNP 138 using GATK(v2.4) for variant calling and Variant Effect Predictor (v85) for variant annotation and interpretation. 2 The list of genes contained in the custom Sequencing Kit and relative transcriptomes Ensembl reference are: ABCC9 ENST00000261200, ABCG5 ENST00000260645, ABCG8 ENST00000272286, ACTA1 ENST00000366683, ACTC1 ENST00000290378, ACTN2 ENST00000366578, AKAP9 ENST00000356239, ANK2 ENST00000264366, ANKRD1 ENST00000371697, BAG3 ENST00000369085, BRAF ENST00000288602, CACNA1C ENST00000327702, CACNA2D1 ENST00000356253, CACNB2 ENST00000282343, CALM1 ENST00000356978, CALR3 ENST00000269881, CASQ2 ENST00000261448, CAV3 ENST00000343849, CREB3L3 ENST00000078445, CRELD1 ENST00000326434, CRYAB ENST00000227251, CSRP3 ENST00000265968, CTF1 ENST00000279804, DES ENST00000373960, DMD ENST00000288447, DNAJC19 ENST00000382564, DOLK ENST00000372586, DPP6 ENST00000332007, DSC2 ENST00000251081, DSG2 ENST00000261590, DSP ENST00000379802, DTNA ENST00000269190, EFEMP2 ENST00000307998, , EMD ENST00000369835, EYA4 ENST00000355167, FHL1 ENST00000345434, FHL2 ENST00000322142, FKRP ENST00000318584, FKTN ENST00000223528, FXN ENST00000377270, GAA ENST00000302262, GATAD1 ENST00000287957, GCKR ENST00000264717, GJA5 ENST00000271348, GLA ENST00000218516, GPD1L ENST00000282541, HCN4 ENST00000261917, HRAS ENST00000311189, HSPB8 ENST00000281938, ILK ENST00000299421, JAG1 ENST00000254958, JPH2 ENST00000342272, JUP ENST00000310706, KCNA5 ENST00000252321, KCND3 ENST00000302127, KCNE1 ENST00000337385, KCNE2 ENST00000290310, KCNE3 ENST00000310128, KCNH2 ENST00000262186, KCNJ2 ENST00000243457, KCNJ5 ENST00000338350, KCNJ8 ENST00000240662, KCNQ1 ENST00000155840, KLF10 ENST00000285407, KRAS ENST00000256078, LAMA2 ENST00000421865, LAMA4 ENST00000230538, LAMP2 ENST00000200639, LDB3 ENST00000263066, LMNA ENST00000347559, MIB1 ENST00000261537, MURC ENST00000307584, MYBPC3 ENST00000256993, MYH6 ENST00000356287, MYH7 ENST00000355349, MYL2 ENST00000228841, MYL3 ENST00000292327, MYLK2 ENST00000375985, MYO6 ENST00000369975, MYOZ2 ENST00000307128, MYPN ENST00000354393, NEXN ENST00000294624, NKX2-5 ENST00000329198, NODAL ENST00000287139, NPPA ENST00000376476, NRAS ENST00000369535, PCSK9 ENST00000302118, PDLIM3 ENST00000284767, PKP2 ENST00000070846, PLN ENST00000357525, PRDM16 ENST00000270722, PRKAG2 ENST00000287878, PRKAR1A ENST00000358598, PTPN11 ENST00000351677, RAF1 ENST00000251849, RBM20 ENST00000369519, RYR1 ENST00000355481, RYR2 ENST00000360064, SALL4 ENST00000217086, SCN1B ENST00000262631, SCN2B ENST00000278947, SCN3B ENST00000299333, SCN4B ENST00000324727, SCN5A ENST00000327956, SCO2 ENST00000252785, SDHA ENST00000264932, SEPN1 ENST00000354177, SGCB ENST00000381431, SGCD ENST00000337851, SGCG ENST00000218867, SHOC2 ENST00000265277, SLC2A10 ENST00000359271, SNTA1 ENST00000217381, SOS1 ENST00000395038, SREBF2 ENST00000361204, TAZ ENST00000299328, TBX20 ENST00000408931, TBX3 ENST00000257566, TBX5 ENST00000310346, TCAP ENST00000309889, TGFB3 ENST00000238682, TMEM43 ENST00000306077, TMPO ENST00000261210, TNNC1 ENST00000232975, TNNI3 ENST00000344887, TNNT2 ENST00000236918, TPM1 ENST00000267996, TRDN ENST00000334268, TRIM63 ENST00000374272, TRPM4 ENST00000252826, TTN ENST00000342175, TTR ENST00000237014, TXNRD2 ENST00000334363, VCL ENST00000211998, ZBTB17 ENST00000375733. ZHX3 ENST00000309060, ZIC3 ENST00000287538. PLASMA AND LEUKOCYTE ASSAY 3 The -Gal A activity was determined in plasma and in leukocytes using the synthetic fluorogenic substrate, 4methylumbelliferil--D-galactopyranoside (Sigma-Aldrich, Steinheim, Germany), according to a previously described protocol with a few changes 1, in the presence of N-acetyl-D-galactosamine (Sigma-Aldrich, Steinheim, Germany), a specific inhibitor of galactosidase B. Briefly, for measuring plasma -Gal A, 50 L of plasma were reacted with 300 L of the substrate solution (3 mmol/L in 0.15 mol/L citrate/phosphate buffer, pH 4.8) and 50 L of the inhibitor N-acetyl-galactosamine (0.8 mol/L). The samples were incubated in bath water at 37 °C for two hours and the reaction was stopped by adding 3.5 mL of 0.2 mol/L glycine/carbonate buffer, pH 10.7. The leukocytes samples were obtained by the heparinized blood centrifuged at 3000 rpm at room temperature for 10 minutes, and the remaining blood was used to separate leukocytes following a standard Ficoll-Paque method; the pellet obtained was diluted in distilled water, sonicated, and analyzed for total protein content trough the colorimetric technique by Lowry et al 2. In the PBMC assay, 25 L of leukocytes homogenate were incubated for an hour at 37° C with 100 L of substrate solution (7.5 mmol/L in distilled water) and 25 L of Na-acetate buffer, 1mol/L, pH 4.5. Reaction was stopped with the addition of 2 mL of glycine-carbonate buffer, pH 10.7 and the resulted fluorescence was determined in a Kontron Spectrofluorometer (Uvikon SFM25), (exc: 360 nm; em: 450 nm). Readings were corrected for blanks and compared with 4-methylumbelliferone calibrator (10 mmol/L). The results of leukocytes assay represent specific enzyme activity, since they take in consideration the amount of total proteins in a sample, being expressed as nmol of substrate degraded per hour per mg of the cell protein (nmol/mg prot/h), while the results for plasma indicate total enzyme activity, being expressed as nmol of substrate per hour per mL of plasma (nmol/mL/h). For all types of samples, the activity of a reference enzyme, usuallymannosidase, was measured to assure sample quality. We generated standards for reference values of plasma and leukocytes Gal A activities in wild-type subjects in accordance with the Standards for Reporting of Diagnostic Accuracy principle. 1. Desnick RJ, Allen KY, Desnick SJ, Raman MK, Bernlohr RW, Krivit W. Fabry's disease: enzymatic diagnosis of hemizygotes and heterozygotes. Alpha-galactosidase activities in plasma, serum, urine, and leukocytes. J Lab Clin Med. 1973;81:157-71. 2. Lowry OH, Rosebrough NJ, Farr AL, Randall RJ, “Protein measurement with the Folin phenol reagent”. J Biol Chem 1951; 193: 265-75. PATHOLOGY STUDIES Tissue biopsies were routinely processed for light and electron microscopy. Light and electron immunochemistry was performed using anti-Gb3 monoclonal antibody (TCI Chemicals, clone BGR23, formerly sold as Seikagaku cat. #370680) with DAKOTMEnVision secondary antibody for light microscopy and goat anti-mouse, colloidal gold 15nm (Bb International) secondary antibody for immuno-electron microscopy. IN VITRO CELLULAR STUDIES Blood samples (3 ml) were collected in EDTA-treated tubes and Peripheral Blood Mononuclear Cells (PBMCs) were isolated by standard density-gradient centrifugation (Histopaque®-1077, Sigma-Aldrich). PBMCs were immediately plated on cover glass placed in the culture dish with opportune growth medium (Advanced Dulbecco's Modified Eagle 4 Medium ,Gibco, Life Technologies) supplemented with 10% Fetal Bovine Serum, 2mM L-glutamine, 0.1 mg/ml penicillin / 100 U/ml streptomycin and 1x MEM Non-Essential Amino Acids Solution. After 7-10 days of culturing at 37° C in a humidified 5% CO2 incubator the adherent cells appeared. The cells were fixed and fluorescent staining on this glasses directly. Nuclei were stained with DAPI solution (Ultracruz Mounting Medium, Santa Cruz). For the immunofluorescence studies of the Gb3 accumulations, the cells were fixed with 4% paraformaldehyde in PBS 1X on ice for 15 min and incubated with primary anti-Gb3 antibody (Anti-Gb3 Monoclonal Antibody, clone BGR23, TCI Chemicals). Anti-mouse Cy3 conjugated (Jackson ImmunoResearch Laboratories) was used as secondary antibody. Nuclei were stained with DAPI solution (Ultracruz Mounting Medium, Santa Cruz). For detecting the expression of alpha galactosidase (a-GLA), the cells were fixed with 100% methanol on ice for 10 min and incubated with primary antibody (Anti-GLA Polyclonal Antibody, Atlas Antibodies). We used anti-rabbit Cy5 conjugated (Jackson ImmunoResearch Laboratories) as secondary fluorescent antibody. All antibodies were diluted in 4% of Skim Milk Powder (Fluka Analytical) in 1x PBS. Images were acquired by Nikon D-Eclipse C1 confocal microscopy and EZ-C1 Software. Statistical analysis Descriptive statistics were computed as median and IQR for continuous variables. In addition to the main statistical analysis in the consecutive series of probands (main text), we here used non-parametric statistics for dependent data (Wilcoxon rank sum test) stratified for family, in case of p.(Asp313Tyr) and p.(Asn215Ser) because they were found in more families. A p value of <0.05 was considered statistically significant. MEDCALC version 14.10.2 (MedCalc Software, Belgium) was used for statistical evaluation. RESULTS SUPPLEMENT. Organ/system involvement Of the 37 probands, 12 were the unique family members (including one patient with proven de novo mutation): seven had family history suggestive for AFD in one non-tested deceased parent; four had no relatives. The 60 mutated relatives were from 25 families; we traced detailed clinical information for four obligate carriers, which are included in the evaluation. 5 females accepted genetic testing but refused multidisciplinary clinical controls. Overall, we had clinical information in 96 mutation carriers: 86 mutated family members were affected including 2 only complaining acroparesthesias; 10 were healthy carriers. Of the 86 affected family members, 22 (28%) demonstrated the involvement of one organ (n=14) and 1 organ plus acroparesthesias (n=8), while 62 had involvement of more than one organ (up to 7) (72%) (Individual data are reported in Table 5 supplement). GLA activity in patients with [p.(Asp313Tyr)] pseudodeficiency allele The 8 probands who were carriers of this variant were from the neurology setting. 31 relatives of the 8 probands underwent genetic screening and enzyme activity testing: overall, 25 family members were carriers and 14 were wild type. Although numbers are low and non-sufficient for a robust comparative evaluation, we report available data on enzyme activity, stratified for family members. Plasma for enzyme dosage was available in 10 mutated males from 6 families [2.15 nmol/mL/h (IQR 2-2.7)] and in 7 WT male relatives from 4 families [9.475 nmol/mL/h (IQR 5.46-13.1)] (p<0.001). Plasma for enzyme dosage was available in 16 mutated females from 7 families [5.55 nmol/mL/h (IQR 2.71-6.7)] and in 6 WT 5 female relatives from 5 families [7.9 nmol/mL/h (IQR 6.475-8.2)] (p=0.033). Leukocytes for enzyme dosage were available in 8 mutated males from 4 families [17.9 nmol/mgprot/h (IQR 10.525-19.0875)] and in 6 WT male relatives from 3 families [26.12 nmol/mgprot/h (IQR 23.46-26.76)] (p=0.56). Leukocytes for enzyme dosage were available in 11 mutated females from 6 families [20.075 nmol/mgprot/h (IQR 15.41-19.35)] and in 5 WT female relatives from 4 families [19.375 nmol/mgprot/h (IQR 11.575-27.2875)] (p=0.92). GLA activity in patients with [p.(Asn215Ser)] The 5 probands who were carriers of this mutation came from the cardiology setting. 19 relatives of the 5 probands were mutation carriers. Although numbers are low and non-sufficient for a robust comparative evaluation, we report available data on enzyme activity in probands, stratified for family members. Plasma for enzyme dosage was available in 9 mutated males in 3 families [0.67 nmol/mL/h (IQR 0.42-0.7)] and in 10 mutated females from 3 families [3.32 nmol/mL/h (IQR 34.91)]. Leukocytes for enzyme dosage were available in 7 mutated males from 3 families [3.31 nmol/mgprot/h (IQR 2.874.25)] and in 10 mutated females from 3 families [10.73 nmol/mgprot/h (IQR 8.759-18.32)]. 6 TABLE 1 SUPPLEMENT GLA mutations identified in the project. The majority of the mutations are known and proven as disease-causing mutations. Novel mutations are in bold. a-Gal Activity nmol/mL/h (in male pts)* (F = family; Pt = patient) N Predicted protein change c.DNA Exome Server DB PolyPhen2 (Class:Score)° SIFT^ 1 p.(Trp44X ) G>A (c.131G>A) 1 p.(Gln57Arg)† A>G (c.170A>G) 0,51 2,1 no / / no BENIGN: 0.019 PROBABLY DAMAGING: 0.999 PROBABLY DAMAGING: 0.999 PROBABLY DAMAGING: 1.000 PROBABLY DAMAGING: 1.000 TOLERATED 1 p.(Cys63Gly) T>G (c.187T>G) 1,59 no 1 p.(Cys63Tyr) G>A (c.188G>A) 0,53 no 1 p.(Arg112His) G>A (c.335G>A) 0,32 TT=0/TC=1/CC=4 059/C=2443 1 p.(Phe113Leu) T>C (c.337 T>C) 0,6 no 1 p.(Trp162X) G>A (c.485G>A) 2,9 no 1 p.(Cys172Tyr) G>A (c.515G>A) 4,16 (female) 1 IVS3+1G>A G>A (c.547+1G>A) 1 p.(Tyr184Asp) 1 p.(Pro205Leu fs*35) Segregation in this study http://fabrydatabase.org/mut ants/ Described by § Unique family member yes Unique family member Unique family member Novel Dysrupting a disulfide bond Dysrupting a disulfide bond DAMAGING yes Later-onset DAMAGING Unique family member Later-onset Eng et al.Mol Med 1997, 3: 174-82 / / yes Stop Rosenberg KM et al. Hum Mutat 2000, 15: 207-8 no PROBABLY DAMAGING: 1.000 DAMAGING yes Classic Eng et al.Mol Med 1997, 3: 174-82 0,45 no / / yes Classic T>G (c.550T>G) 0,36 no PROBABLY DAMAGING: 1.000 DAMAGING yes Mutation of a buried residue Ashton-Prolla P et al. J Investig Med 2000, 48: 227-35 Tuttolomondo et al. Clin Biochem. 2012;45:1525-30 (c.613delC) 0,47 no / / yes frameshift Present manuscript no BENIGN: 0.048 DAMAGING yes later-onset Eng CM et al. Am J Hum Genet 1993, 53: 1186-97 TOLERATED yes Novel Present manuscript DAMAGING yes Classic Eng CM et al. Am J Hum Genet 1993, 53: 1186-97 DAMAGING Unique family member Novel Present manuscript DAMAGING yes Classic Eng CM et al. Hum Mol Genet 1994, 3: 1795-9 Table 2 Suppl. F.7 pt # 28 = 0,6 F.23 pt# 57 = 0,7 F.25 pt # 74 = 0,6 F.35 pt # 91 = 0,59 F.36 Pt # 97 = 0,78 DAMAGING DAMAGING classic Sakuraba H et al Am J Hum Genet 1990, 47: 784-9 Present manuscript Present manuscript Schäfer E et al.Hum Mutat 2005, 25: 412 Eng CM et al.Hum Mol Genet 1994, 3: 1795-9 5 p.(Asn215Ser) A>G (c.644A>G) 1 p.(Tyr222Asp) T>G (c.664T>G ) 0,5 no 1 p.(Arg227Gln) G>A (c.680G>A) 0,7 no 1 p.(Phe273Ser) T>C (c.818T>C) 0,27 no 1 p.(Ala288Asp) C>A (c.863C>A) 0,93 no 1 p.Ala292_Met29 6del c.875_886delCTCCT TTATTCA 0,49 no / / yes Novel; classic Present manuscript 8 p.(Asp313Tyr) G>T (c.937G>T) AA=0/AC=21/A= 10/CC=4039/C=2 433 PROBABLY DAMAGING: 0.999 DAMAGING Yes in 5/8; 3 unique family members Polymorphism Classic: Eng CM et al. Am J Hum Genet 1993;53:1186-97 Neurologic variant: Brouns et al. Table 2 Supp. F.5 pt # 20 = 2,2 F.5 pt # 21 = 1,1 PROBABLY DAMAGING: 0.995 PROBABLY DAMAGING: 1.000 PROBABLY DAMAGING: 0.999 PROBABLY DAMAGING: 1.000 7 Stroke 2010; 863-868 and Lenders et al. PLoS One 8:e5556 SNP: Yusuda et al. Hum Mutat. 2003;22:486-92. F.5 pt # 23 = 0,95 F.5 pt # 25 = 0,9 F.8 pt # 32: = 2 F.24 pt # 60 = 2,4 F.24 pt # 66 = 0,99 F.28 pt # 78 = 0,7 F.32 pt # 85 = 2,7 F.6,F.27,F.33: female pts 1 p.(Phe337Ser) T>C (c.1010T>C ) 0,54 no 1 p.(Arg342Gln) G>A (c.1025G>A) 0,5 no 1 p.(Ala352Asp) C>A (c.1055C>A) 0,45 no 1 p.(Arg356Gln) G>A (c.1067G>A) 11 (female) no POSSIBLY DAMAGING: 0.869 PROBABLY DAMAGING: 1.000 PROBABLY DAMAGING: 0.999 PROBABLY DAMAGING: 0.999 POSSIBLY DAMAGING : 0.948 PROBABLY DAMAGING: 1.000 DAMAGING Unique family member Novel DAMAGING yes Classic DAMAGING TOLERATED Unique family member Unique family member Classic Classic Present manuscript Davies et al. Hum Mol Genet. 1993;2:1051-3. Morrone et al. J Med Genet 2003;40:e103 Hwu et al. Hum Mutat 2009; 30:1397 Blaydon D et al.Hum Mutat 2001, 18: 459 Unique family Topaloglu et al. Mol Med 1999, 5: 1 p.(Cys378Tyr) G>A (c.1133G>A) 1,39 no TOLERATED Classic member 806-811 Shabbeer J et al. Mol Genet Metab 1 p.(Ser401X) C>A(c.1202C>A) 4** no / / yes Classic 2002, 76: 23-30 PROBABLY Not specified; Ebrahim et al. J Inherit Metab Dis 1 p.(Thr410Ile) C>T (c.1229C>T) 2,3 no DAMAGING yes DAMAGING: 1.000 cardiac phenotype 2012;35:325 Exome Server DB (last access 21 04 2016) (http://evs.gs.washington.edu/EVS/); ° http://genetics.bwh.harvard.edu/pph2; ^http://sift.jcvi.org. § First manuscript that described the mutation. The mutation segregates in family members. The probands was also tested for known hypertrophic cardiomyopathy genes, and resulted negative. The activity of the enzyme resulted minor then the cutoff level and the variant was not present in EVS. †This mutation was associated with late onset phenotype and segregated with the phenotype in the family. ** this patient demonstrated severe phenotype and GB3 accumulation in the gastric biopsy (Figure4). 1 p.(Ala377Asp) C>A (c.1130C>A) 2,3 (female) no TOLERATED yes Classic 8 TABLE 2 SUPPLLEMENT A) GLA Intron variants/haplotypes and related plasma enzyme activity SEX 5'UTR-10C>T M x F x 5'UTR12G>A 5'UTR-30G>A c.-105A>G IVS2: c.370-81_37077 del CAGCC c.640-16A>G n x c.100022C>T x IQR1 IQR3 45 Plasma nmol/mL/h 8.25 6.87 9.77 x x 64 8.7 6.9 11.85 M x x 36 15.1 12.57 18.85 F x x 34 11.1 8.7 13.83 M x x 59 11.5 8.6 14.3 F x x 88 11.2 8.8 12.9 M x 14 14.6 13.8 15.03 F x 8 9.2 7.8 11.17 2 14.8 6 10.33 9.75 10.57 10.5 14.15 9.1 13.35 M x x F x M x 4 13.5 F x 5 11 M x x x 2 9.85 F x x x 10 12.5 M x x 3 7.7 F x x 9 10.1 M x 13 27.9 23.8 30.9 F x 10 18.6 9.85 22.3 M x 2 - F x 1 - M x x 5 8.9 F x x 2 13.2 M x 5 11.5 F x 1 - M x x 24 9.1 7.2 10.6 F x x 63 8.7 6.9 11.85 M x 1 13.3 x x 9 M x x 1 x 12.4 B) GLA: Unique synonymous, missense and intron variants identified in the series Gender M F F M M F F Variant 5'UTR-124T>A c.48T>G p.(Leu16Leu) c.192C>T p.(Ile64Ile) IVS2 +76_80del5 p.(Glu203Glu) IVS6 -58_55del4(AACT) c.376A>G (p.Ser126Gly) Clinical setting Neurology Neurology Neurology Pediatrics Nephrology Neurology Neurology/cardiology* F c.640-854_640-853delAG Neurology° RNA or EMB or other studies RNA None RNA None None RNA Absence of Gb3 myocardial accumulation and of diseasespecific neurologic markers Phenotype based diagnosis of MELAS confirmed as associated with the MtDNA A3243G mutation Plasma (nmol/mL/h) / 18.3 5.3 8.7 15.8 / 4.9 Leukocytes (nmol/mgprot/h) / 45.3 / 13.9 23.8 / 28.4 7.2 13.4 *reported http://www.genomed.org/lovd2/variants.php?select_db=GLA&action=view_all 10 TABLE 3 SUPPLEMENT Unique variants identified in eight patients with severe HCM in which we sequenced using Illumina MiSeq and Sanger sequencing for confirming the variants and test relatives. PolyPhen2 Exome MAF benign - rs140740776 benign 0.7051 p.Val1125Met rs121909378 possibly-damaging - c.3098G>A p.Arg1033Gln rs397516003 possibly-damaging - chr10:69959174 c.3335C>T p.Pro1112Leu rs71534278 probably-damaging 0.2 Benign No:F25 MYPN chr10:69934259 c.2410G>A p.Glu804Arg rs62620248 probably-damaging 0.0245 Benign No:F5 NEBL chr10:21112137 c.1962T>A p.Asn654Lys rs4748728 benign 0.8 Benign No:F1 NEBL chr10:21158728 c.523G>A p.Ala175Thr rs71541562 benign 0.016 Benign No:F25 NEBL chr10:21134282 c.1132G>C p.Asp378His rs41277370 probably-damaging 0.0610 Benign No:F5 NEBL PDLIM3 RYR1 SGCD chr10:21139389 chr4: 186429612 chr19: 38976655 chr5:155935708 c.1051A>G c.503C>T c.5360C>T c.287G>A p.Met351Val p.Ala168Val p.Pro1787Leu p.Arg96Gln rs4025981 rs34934920 rs45559835 benign benign benign probably-damaging 0.0611 1.66 0.0479 Benign Benign Benign/Likely benign No:F5 No:F36 No:F36 No:F5 TNNT2 TTN chr1:201330429 chr2:179659912 c.740A>G c.982C>T p.Lys247Arg p.Arg328Cys rs3730238 rs16866538 benign possibly-damaging 0.0602 0.0881 Benign Benign No:F5 No:F5 TTN chr2:179658175 c.1492G>A p.Val498Ile rs72647851 benign 0.0175 Benign/Likely benign F23: non assessable § TTN chr2:179634961 c.8467G>T p.Val2823Phe rs33917087 probably-damaging 0.0155 F23: non assessable § TTN chr2:179596554 c.17048A>G p.Tyr5683Cys rs72648942 benign 0.0072 TTN chr2:179395554 c. 20468G>A p.Ser6748Asn rs66961115 unknown - Benign/Likely benign Benign/Likely benign/GVUS Benign/Likely benign TTN chr2:179586604 c.22786G>C p.Asp7596His rs72648970 probably-damaging 0.0386 Benign/Likely benign No:F1 TTN chr2:179575511 c.28313G>A p.Arg9438Gln rs72648998 benign 0.057 Benign/Likely benign *F31 non assessable TTN chr2:179569387 c.29812A>T p.Thr9938Ser rs72650006 benign 0.0205 Benign No: F5 TTN chr2:179498042 c.42958A>G p.Lys14320Glu rs6723526 probably-damaging 0.0813 Benign F23: non assessable TTN chr2:179457147 c.59585C>T p.Pro19862Leu rs16866406 benign 0.1473 Benign *F31 non assessable Gene Location HGVS HGVS COX15 chr10:101489475 c.107G>A p.Arg36His JPH2 chr20: 42744802 c.1513G>A p.Gly505Ser MYBPC3 chr11:47354482 c.3373G>A MYBPC3 chr11: 47355200 MYPN DBSNP ClinVar interpretation Segregation (Yes/No) [family (F) N] No: F36 Conflicting: Benign(2); Pathogenic(1) Confliicting: Pathogenic(2);Uncertain significance(1) Conflicting: Likely pathogenic(1);Uncertain significance(1) No: F36 No: F3 No:F3 No: F7 No:F36 11 TTN chr2:179436020 c.74839C>T p.Arg24947Cys rs744426 probably-damaging 0.1442 Benign *F31 non assessable TTN chr2:179435983 c.74876A>G p.Asn24959Ser - probably-damaging - - *F31 non assessable TTN chr2:179406191 c.97613G>A p.Arg32538His rs3731749 probably-damaging 0.1453 Benign *F31 non assessable TTN chr2:179401742 c.100094G>A p.Arg33365Gln rs55742743 probably-damaging 0.021 Benign/Likely benign *F31 non assessable TTN chr2:179397561 c.103781G>A p.Arg34594His rs3829747 probably-damaging 0.1442 Benign *F31 non assessable TTN chr2:179395573 c.105769G>A p.Glu35257Lys rs56324595 probably-damaging 0.0175 Benign/Likely benign No: F25^ TTN chr2:179395555 c.105787G>T p.Ala35263Ser rs67254537 benign 0.0143 Benign/Likely benign No: F25^ TTN chr2:179395554 c.105788C>T p.Ala35263Val rs66961115 benign 0.0143 Benign/Likely benign No: F1° * , ^, °: Endomyocardial biopsy documenting severe Gb3 myocyte accumulation. § the proband is the father of two young unaffected daughters: therefore the segregation with the phenotypes cannot rely on phenotypic traits. Last access for databases was 30/9/2015. DBSNP ver 138 (http://www.ncbi.nlm.nih.gov/SNP/index.html); MAF (Minor Allele Frequency) from Exome Variant Server (http://evs.gs.washington.edu/EVS/) ; Polyphen2 (http://genetics.bwh.harvard.edu/pph2/); Sift (http://sift.jcvi.org/); ClinVar (http://www.ncbi.nlm.nih.gov/clinvar/). 12 TABLE 4 SUPPLEMENT - PLASMA AND LEUKOCYTE ENZYME ACTIVITY IN PROBANDS Plasma nmol/mL/h Median (IQR) Leukocytes nmol/mgprot/h Median (IQR) General population, wild type and mutated probands M&F All Wild Type Mutated P value All Wild Type Mutated P value Male probands N=787 11 (8.3-15.5) N=769 11.35 (8.4-15.73) N=18 0.67 (0.54-2.7) p<0.001 N=444 23.5 (17.05-33.7) N=431 23.8 (17.9-33.8) N=13 2.96 (1.28-4.15) p<0.001 N=714 10.6 (7.73-13.52) N=697 10.6 (7.8-13.6) N=17 6.7 (2.6-11.64) N=421 23.5 (16.42 -31.2) N=409 24 (17.14-34.4) N=12 11.8 (9.87-15.3) Female probands p=0.005 p<0.001 13 TABLE 5 SUPPLEMENT. MOGE(S) The table shows the list of probands and relatives diagnosed with AFD, their position in family pedigrees, and the MOGE(S) descriptor for cardiomyopathies (web-app at http://moges.biomeris.com/moges.html, app for Android downloadable from Google Play): M Morphofunctional (M) phenotype of the hypertrophic cardiomyopathy (H) and obstructive (Obs) and non-obstructive (N-Obs) specifications. Overlapping or evolving morphofunctional profile (i.e. D=Dilated), Early (E) hypertrophic cardiomyopathy (Max LV: 11-14mm), short PR (<PR) interval or Atrio-Ventricular block (AVB) at ECG can be added. O Organs/systems’ involvement (O): heart (H); Kidney (K) in case of microalbuminuria, albuminuria, proteinuria; Chronic renal Failure (CRF) renal transplantation (KTx), and dialysis can be further specified; Central nervous system (N) either stroke, or transient ischemic attack (TIA), or migraine and imaging markers such as white matter lesions (WML); Peripheral nervous system (Acroparesthesia); Cutaneous (C) system (e.g. typical angiokeratomas); Gastro-enteric system (GE); Ocular (E) for Eye describes non-iatrogenic cornea verticillata, E(CV); Auditory system (A). G Genetic (G) or unknown/unproven (U) genetic origin of the disease. In AFD the pattern of inheritance is described as X-linked (XL) E Etiology (E) in AFD corresponds to mutations in the GLA gene; mutation is in red when pathogenic, yellow in case of genetic variant of unknown significance (GVUS). Green SNP with some potential functional implication; variants additional to those observed in GLA are added after the GLA mutation. (S) Stage (S) descriptor includes both the AHA-ACC stage A-D and the NYHA function class (I-IV). Proband Patient ID Sex MOGE(S) 1 1* F 2 M 3 M 4 M 5 F 6 F 7 M 8 M 9 M 10 F 11 M MH(N-Obs)+ D(AVB) OH, C, E(CV) GXL EG-GLA[p.Tyr184Asp] SC-IIb M0(<PR) OK, E(CV) GXL EG-GLA[p.Tyr184Asp] SA-I MH(N-Obs) OH, K(CRF), E(CV) GXL EG-GLA[p.Tyr184Asp] MH(N-Obs) OH, N (stroke), K(Dialysis), Acroparesthesias GXL EG-GLA[p.Arg227Gln] SC-II MH(E) OH, N (TIA), Acroparesthesias GXL EG-GLA[p.Arg227Gln] SB-I M0 OAcroparesthesias GXL EG-GLA[p.Arg227Gln] SA-I MH(E) OH, K, Acroparesthesias GXL EG-GLA[p.Arg227Gln] SB-I MH(E) OH, K(CRF), Acroparesthesias GXL EG-GLA[p.Arg227Gln] SB-I M0 OAcroparesthesias, E(CV) GXL EG-GLA[p.Arg227Gln] SA-I MH(N-Obs) OH, K(CRF) GXL EG-GLA[p.Arg227Gln] MH(N-Obs)(AVB) OH, K GXL EG-GLA[p.Gln57Arg] SC-III 2 3 N. organs Involved (a=acroparesthesias) 3 Age: onset Age Age: Comorbidities of at death symptoms diagnosis 45 65 2 21 23 3 45 OC 67 3+a 12 41 45 2+a 10 51 HPN a 10 18 HPN, juvenile 2+a 9 29 HPN 2+a 10 31 HPN, juvenile 1+a 10 24 2 60 OC 72 HPN, IHD 2 68(HPN) 88 89 HPN Dolico-ectasia, basilar artery, HPN 14 4 5 12 F 13 F 14 F 15 F 16 F 17 M 18 F 19 F 20 M 21 M 22 F 23 M 24 F 25 M 6 26 F 7 27 F 28 M 29 F 30 F 31 F 32 M 9° 33 F 10 35 M 34 F 36 F 37 M 12 38 F 13 39 F° 14 40 M 8 11 MH(E)(AVB) OH GXL EG-GLA[p.Gln57Arg] SB-I MU OU GXL EG-GLA[p.Gln57Arg] (S) MH(E) OH, K GXL EG-GLA[p.Gln57Arg] SB-I M0 O0 GXL EG-GLA[p.Gln57Arg] SA-I MH(E) OH, A GXL EG-GLA[p.Gln57Arg] SB-I MH(N-Obs) OH, K(CRF), Acroparesthesias, C GXL EG-GLA[p.Arg342Gln] +MT-RNR2[G3010A] SC-II M0 OK, Acroparesthesias GXL EG-GLA[p.Arg342Gln] SA-I M0 ON (Migraine, with aura, TIA, WML), GE, Acroparesthesias GXL EG-GLA[p.Asp313Tyr] SA-I MH(E) OH, K, GE, A GXL EG-GLA[p.Asp313Tyr] SC-II M0 OK, Acroparesthesias A GXL EG-GLA[p.Asp313Tyr] SA-I M0(<PR) OGE, Acroparesthesias, C GXL EG-GLA[p.Asp313Tyr] SA-I M0 OGE, C GXL EG-GLA[p.Asp313Tyr] SA-I M0 ON (migraine, with aura, WML), Acroparesthesias GXL EG-GLA[p.Asp313Tyr] SA-I M0(<PR) O GE, acroparesthesias GXL EG-GLA[p.Asp313Tyr] SA-I M0 ON (strokes, WML) GU EG-GLA[p.Asp313Tyr] SA-I MH(N-Obs)(AVB) OH GXL EG-GLA[p.Asn215Ser] +MT-RNR2[G3010A] SC-II MH(E) OH GXL EG-GLA[p.Asn215Ser] +MT-RNR2[G3010A] SB-I MH(E) OH GXL EG-GLA[p.Asn215Ser] +MT-RNR2[G3010A] SB-I MH(N-Obs) OH, N (stroke, WML), K GXL EG-GLA[p.Asp313Tyr] SC-II MU OU GXL EG-GLA[p.Asp313Tyr] SA-I M0 O0 GXL EG-GLA[p.Asp313Tyr] SA-I MH(E) OH, N (stroke), K, Acroparesthesias, C, E(CV) GU EG-GLA[p.Trp44X] SA-I MH(N-Obs) OH, K(Dialysis), GE, C, E(CV) GXL EG-GLA[p.Ala377Asp] SC-III MH(N-Obs) OH, GE, C, E(CV) GXL EG-GLA[p.Ala377Asp] SB-I M0(<PR) ON (WML), K, Acroparesthesias, E(CV), A GXL EG-GLA[IVS3 +1G>A] SB-I M0 O0 GXL EG-GLA[IVS3 +1G>A] SA-I M0 ON (TIA,WML), K, GE, Acroparesthesias, E(CV) GXL-maternal EG-GLA[p.Cys172Tyr] SA-I MH(E) OH, N (Stroke,TIA, migraine with aura), Acroparesthesias, GE GXL-maternal EG-GLA[p.Arg356Gln] SB-I MH(N-Obs) OH, GE, C GXL EG-GLA[p.Arg112His] SB-I 1 53 53 HPN U U 82 Refusing evaluation 2 63 63 HPN, Tongue Cancer 0 HC 23 2 62 62 3+a 30 49 1+a 23 23 2+a 37 42 PFO, Raynaud’s 4 55 71 HPN, > cholesterol 2+a 27 57 HPN, left nephrectomy 2+a 50 62 Celiac disease, Gastric B-cell Lymphoma Mild Mitro-Aortic disease 2 36 36 1+a 6(migraine) 32 1+a 14 14 1 37 38 PFO; new stroke after PFO repair 1 75 78 HPN 1 36 38 1 75 79 3 16(migraine) 52 HPN U U 49 Refusing evaluation 0 HC 22 5+a 30 40 5 49 58 4 41 42 4+a 38 39 0 4+a 59 Thrombosis retinal artery Prenatal (HC) Confirmed, post-natal 15 21 3+a 42 54 3 2 4 PKU 15 41 F 15 42 M 16 43 F 44 M 45 M 46 M 47 M 48 F 49 F 50 M 51 F 19 52 F 20 53 M 21 54 M 22^ 55 F 56 M 57 M 58 F 59 F 60 M 61 F 62 F 63 F 64 F 65 F 66 M 67 F 68 F 69 F 70 F 17 18 23 24 25 MH(N-Obs) OH GXL EG-GLA[p.Arg112His] SB-I MH(N-Obs) OH, K(Tx), C, E(CV) GXL-maternal EG-GLA[p.Cys378Tyr] SC-II M0 OE(CV) GXL EG-GLA[p.Ala292_Met296del in frame] SA-I M0 OK, GE, Acroparesthesias, C, E(CV) GXL EG-GLA[p.Ala292_Met296del in frame] SA-I MH(N-Obs) OH, K, Acroparesthesias, C, E(CV), A GXL EG-GLA[p.Trp162X] SC-II MH(N-Obs) OH, K, Acroparesthesias, C, E(CV), A GXL EG-GLA[p.Trp162X] SC-II MH(N-Obs) OH, K, Acroparesthesias, C, E(CV), A GXL EG-GLA[p.Trp162X] SC-Iib MH(N-Obs) OH, Acroparesthesias, C, E(CV), A GXL EG-GLA[p.Trp162X] SC-II M0 OAcroparesthesias, E(CV) GXL EG-GLA[p.Trp162X] SA-I MH(N-Obs) OH, K, Acroparesthesias, C, E(CV), A GXL EG-GLA[p.Ala288Asp] SC-III MH(N-Obs) OH, Acroparesthesias, C, E(CV) GXL EG-GLA[p.Ala288Asp] SA-I M0 ON (stroke) GU EG-GLA[p.Cys63Gly] SA-I MH(N-Obs)+D OH, N (TIA, WMLs), K, GE, Acroparesthesias, C, A GXL-Maternal EG-GLA[p.Cys63Tyr] SA-I MH(E) OH, N (WMLs), K, GE, Acroparesthesias, C, E(CV), A G0 EG-GLA-De novo[p.Ala352Asp]+MT-RNR2[G3010A] SA-I MH(N-Obs)(AVB) OH, K(CRF), N (WMLs), C, E(CV) GXL EG-GLA-[p.P205LfsX35] SB-I MH(N-Obs) OH, Acroparesthesias, C, E(CV) GXL EG-GLA-[p.P205LfsX35] SB-I MH(N-Obs) OH, N (stroke), K, C GXL EG-GLA-[p.Asn215Ser] SC-II M0 O0 GXL EG-GLA-[p.Asn215Ser] SA-I M0 O0 GXL EG-GLA-[p.Asn215Ser] SA-I MH(N-Obs)(AVB) OH, N (stroke), K GXL EG-GLA-[p.Asp313Tyr] SB-I MU OU GXL EG-GLA-[p.Asp313Tyr] SA-I MH(N-Obs) OH, GE, Acroparesthesias GXL EG-GLA-[p.Asp313Tyr] SB-I MU OU GXL EG-GLA-[p.Asp313Tyr] SA-I MH(N-Obs) OH GXL EG-GLA-[p.Asp313Tyr] SB-I MU OU GXL EG-GLA-[p.Asp313Tyr] SA-I M0 O0 GXL EG-GLA-[p.Asp313Tyr] SA-I MH(N-Obs) OH, C GXL EG-GLA-[p.Asn215Ser] SC-II MH(N-Obs) OH GXL EG-GLA-[p.Asn215Ser] SB-I MH(N-Obs) OH, C, E(CV) GXL EG-GLA-[p.Asn215Ser] SC-II MH(N-Obs) OH, Acroparesthesias GXL EG-GLA-[p.Asn215Ser] SB-I 1 29 29 4 25 35 1 30 31 4+a 2 6 5+a 28 39 5+a 30 41 5+a 32 43 4+a 60 70 1+a 2 2 5+a 40 57 3+a 5 5 1 71 72 6+a 10 46 7+a 11 15 5 12 56 3+a 10 26 Dolico-ectasia Basilar Artery 4 54 60 HPN, >cholesterol, 0 HC 24 0 HC 35 3 48 50 HPN U U 47 Refusing evaluation 2+a 60 67 HPN U U 58 Refusing evaluation 1 51 55 HPN U U 72 Refusing evaluation 0 HC 24 2 68 70 1 47 47 3 37 68 1+a 60 65 73 HPN 16 71 F 72 F 73 M 74 M 26 75 M 27 76 F 28 77 F M0 O0 GXL EG-GLA-[p.Asn215Ser] SA-I M0 O N (WML) GXL EG-GLA-[p.Asn215Ser] SA-I M0 OGE, Acroparesthesias GXL EG-GLA-[p.Asn215Ser] SA-I MH(E) OH, GE GXL EG-GLA-[p.Asn215Ser] SB-I MH(N-Obs) OH, N (stroke), K, GE, Acroparesthesias, C GXL-maternal EG-GLA-[p.Phe337Ser] SB-I M0 ON (Migraine with aura, WML) GU EG-GLA-[p.Asp313Tyr] SA-I M0 ON (stroke) GXL EG-GLA-[p.Asp313Tyr] SA-I 78 M 79 F 80 M 81 F 82 F 30 83 M 31 84 M 32 85 M 33 86 F 87 F 88 M 89 F 90 F 91 M 92 M 93 M 94 F 95 F 96 F 97 M 98 M 29 34 35 36 0 HC 42 1 41 41 1+a 7 9 2 15 19 5+a 16 42 1 21 26 1 28 29 M0 ON (stroke), K GXL EG-GLA-[p.Asp313Tyr] SC-II 2 60 64 M0 ON (Stroke, WML), K, GE GXL EG-GLA-[p.Asp313Tyr] SA-I MH(N-Obs) OH, N (stroke), K(Dialysis), Acroparesthesias, C, E(CV), A GXL EG-GLA-[p.Thr410Ile] SC-II MH(N-Obs) OH, N (Stroke, WML), K(CRF), GE, Acroparesthesias, C, E(CV), A GXL EG-GLA-[p.Thr410Ile] SB-I 3 32 35 6+a 30 50 7+a 73 4 12(angiokerato mas) 40 6+a 8 55 2 39 62 2 15(HPN) 65 3+a 53 54 0 HC 52 5+a 40 55 1 49 49 1 22 22 3+a 59 69 3 60 64 3 50 59 2 67 OC 0 HC 33 0 HC 35 2 51 60 2 43 59 MH(E) OH, K, GE, C GXL EG-GLA-[p.Thr410Ile] SA-I MH(N-Obs)(AVB) OH, N (WML), K, GE, Acroparesthesias, C, A GXL-maternal EG-GLA-[p.Phe273Ser] SC-II MH(N-Obs)(AVB) OH, GE GU EG-GLA-[p.Phe113Leu] SC-II MH(N-Obs) OH, N (strokes, WML) GXL-maternal EG-GLA-[p.Asp313Tyr] + MT-RNR2[G3010A] SC-IIb MH(E) OH, N (stroke, WML), Acroparesthesias, A GXL EG-GLA-[p.Asp313Tyr] +MT-RNR2[G3010A] SA-I M0 O0 GXL EG-GLA-[p.Asp313Tyr] MT-RNR2[G3010A] SA-I MH(N-Obs)(AVB) OH, N (stroke), GE, Acroparesthesias, E(CV), A GXL EG-GLA-[p.Tyr222Asp] +MT-RNR2[G3010A] SC-II M0 OE(CV) GXL EG-GLA-[p.Tyr222Asp] +MT-RNR2[G3010A] SA-I M0 OE(CV) GXL EG-GLA-[p.Tyr222Asp] +MT-RNR2[G3010A] SA-I MH(N-Obs)(AVB) OH, K, Acroparesthesias, E(CV) GXL EG-GLA-[p.Asn215Ser] SC-IIb MH(N-Obs) OH, GE, E(CV) GXL EG-GLA-[p.Asn215Ser] SB-I MH(E) OH, K(CRF), GE GXL EG-GLA-[p.Asn215Ser] SB-I MH(N-Obs)(AVB) OH, GE GXL EG-GLA-[p.Asn215Ser] SC-II M0 O0 GXL EG-GLA-[p.Asn215Ser] SA-I M0 O0 GXL EG-GLA-[p.Asn215Ser] SA-I MH(N-Obs) OH, N (TIA, WML) GXL EG-GLA-[p.Asn215Ser] SC-II MH(N-Obs) OH, K GXL EG-GLA-[p.Asn215Ser] SC-II HPN 65 51 Acoustic Neurinoma, Aneurysm Left ICA§ HPN, IHD, vertebro-basilar dolichoectasia HPN, RA HPN 52 HPN, NIDDM, >Cholesterol, Hypotyroidism 56 HPN Colon cancer at 44 yrs 78 HPN, >sCPK 17 37 99 F 100 F 101 M MH(N-Obs)(AVB) OH, K(CRF) GXL EG-GLA-[p.Asn215Ser] SC-IV M0(<PR) O Acroparesthesias, E(CV) GXL EG-GLA-[p.Ser401X] SA-I M0(<PR) O GE, Acroparesthesias, E(CV) GXL EG-GLA-[p.Ser401X] SA-I 2 60 OC 1+a 47 47 2+a 12 22 76 HPN *1 proven affected sister, not included in this list. °4 affected brothers. ^ 2 additional affected sisters of II:3; HC: Healthy Carrier. OC= obligate carrier with available clinical information. Hypertension (HPN). IHD=Ischemic Heart Disease. § Giant Aneurysm of the left internal carotid artery (Diameter 30mm, partly thrombosed) in the suprasellar segment near the origin of the ophthalmic artery causing compression and displacement of the optic chiasm and left optical nerve in the prechiasmatic segment. sCPK: serum creatin-phosphokinase PKU = Phenylketonuria. RA: Rheumatoid arthritis. NIDDM: Non-insulin-dependent diabetes mellitus. 18 FIGURE 1 SUPPLEMENT. Endomyocardial biopsy from a patient carrier of the p. (Phe113Leu): the maximal left ventricular thickening was 28mm. A) The panel shows areas of interstitial fibrosis with typical Fabry bodies in the interstitial spaces and myocytes that demonstrate extensive myofibriallar lysis and Fabry bodies. B) Immunoelectron micrograph showing anti-Gb3 specific labeling of the osmiophilic lamellar bodies. 19 FIGURE 2 SUPPLEMENT. The figure shows electron (A,B,C,E) and light microscopy (D) views of morphologic (A-C,E) and anti-GB3 immunohistochemistry (D) features of skin biopsies taken from patients carriers of the p.Asp313Tyr. Osmiophilic lamellar bodies are rare and scattered as confirmed by the spotty immunoreactive bodies seen in the smooth muscle cells of skin arteriolar vessels (D). Therefore, skin biopsies are not contributory to the understanding of the potential role of this variant in the phenotype presented by patients. 20 FIGURE 3 SUPPLEMENT. The figure shows electron micrographs from punch skin biopsies taken to demonstrate the presence of lamellar bodies in vessels. The samples have been extensively investigated and did not show typical and significant accumulations of Gb3. D panel shows osmiophilic extracellular material non-sufficient for a morphologic diagnosis. 21 FIGURE 4 SUPPLEMENT. Pedigree of one of the families with the p. (Asp313Tyr). All carriers are affected and show more than one trait recurring in AFD (in blue). 22
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