Total 30 pathogenic variants reported for Sudden infant death syndrome 
Variant Name Variant Type Variant Genomic Location Clinical Significance Phenotype Condition Review Status ClinGen Allele dbSNP ID Variation/condition record
NM_015141.4(GPD1L):c.370A>G (p.Ile124Val) SNV
Germline
Chr3:32140231 Conflicting classifications of pathogenicity Brugada syndrome 2
SUDDEN INFANT DEATH SYNDROME
Long QT syndrome
Primary familial hypertrophic cardiomyopathy
not specified
Condition: not provided
Cardiovascular phenotype
Hypertrophic cardiomyopathy
Brugada syndrome
GPD1L-related disorder
Criteria Provided
Conflicting Classifications
CA213881 rs_72552293

18 SubmittersRCV000000824RCV000029945RCV000157243RCV000170920RCV000203752RCV000620285RCV000852958RCV001081825RCV003952333

NM_000335.5(SCN5A):c.3305C>A (p.Ser1102Tyr) SNV
Germline
Chr3:38579416 Conflicting classifications of pathogenicity Long QT syndrome 3, acquired, susceptibility to
SUDDEN INFANT DEATH SYNDROME
Condition: not provided
not specified
Brugada syndrome
Progressive familial heart block, type 1A
Ventricular fibrillation, paroxysmal familial, type 1
Sick sinus syndrome 1
Dilated cardiomyopathy 1E
Congenital long QT syndrome
Cardiovascular phenotype
Long QT syndrome 3
Brugada syndrome 1
Primary dilated cardiomyopathy
Cardiomyopathy
Cardiac arrhythmia
8 conditions
Criteria Provided
Conflicting Classifications
CA017028 rs_7626962

23 SubmittersRCV000009992RCV000009993RCV000058563RCV000041615RCV000204216RCV000304064RCV000368908RCV000396768RCV000274325RCV000363449RCV000621429RCV000755696RCV001094834RCV003125829RCV003149567RCV001841239RCV002504776

NM_000363.5(TNNI3):c.575G>A (p.Arg192His) SNV
Germline
Chr19:55151892 Pathogenic Cardiomyopathy, familial restrictive, 1
Restrictive cardiomyopathy
Hypertrophic cardiomyopathy
Primary familial hypertrophic cardiomyopathy
Condition: not provided
Hypertrophic cardiomyopathy
Restrictive cardiomyopathy
Cardiovascular phenotype
SUDDEN INFANT DEATH SYNDROME
Dilated cardiomyopathy 2A
Criteria Provided
Multiple Submitters
No Conflicts
CA021957 rs_104894729

11 SubmittersRCV000013237RCV000154212RCV000157534RCV000159242RCV000629012RCV000852483RCV000619328RCV003147282RCV003388566

NM_000363.5(TNNI3):c.433C>T (p.Arg145Trp) SNV
Germline
Chr19:55154146 Pathogenic Cardiomyopathy, familial restrictive, 1
Condition: not provided
Cardiomyopathy
Hypertrophic cardiomyopathy
Restrictive cardiomyopathy
Hypertrophic cardiomyopathy
SUDDEN INFANT DEATH SYNDROME
Hypertrophic cardiomyopathy 7
Dilated cardiomyopathy 2A
Cardiomyopathy, familial restrictive, 1
Dilated cardiomyopathy 1FF
TNNI3-related disorder
Criteria Provided
Multiple Submitters
No Conflicts
CA021667 rs_104894724

19 SubmittersRCV000013239RCV000159222RCV001170617RCV000498333RCV001254730RCV001787387RCV004795401RCV004549357

NM_000814.6(GABRB3):c.650G>A (p.Arg217His) SNV
Germline
Chr15:26580351 Conflicting classifications of pathogenicity Insomnia
SUDDEN INFANT DEATH SYNDROME
Epilepsy, childhood absence, susceptibility to, 5
Epilepsy, childhood absence, susceptibility to, 1
Developmental and epileptic encephalopathy, 43
Criteria Provided
Conflicting Classifications
CA126256 rs_121913125

5 SubmittersRCV000017574RCV001787803RCV000703382RCV003133118

NM_000256.3(MYBPC3):c.821+1G>A SNV
Germline/somatic
Chr11:47347856 Pathogenic Cardiovascular phenotype
Primary familial hypertrophic cardiomyopathy
Condition: not provided
Hypertrophic cardiomyopathy
Cardiomyopathy
Hypertrophic cardiomyopathy 4
Left ventricular noncompaction 10
Primary dilated cardiomyopathy
SUDDEN INFANT DEATH SYNDROME
MYBPC3-related disorder
Criteria Provided
Multiple Submitters
No Conflicts
CA015883 rs_397516073

27 SubmittersRCV000249601RCV000845451RCV000158313RCV000168401RCV001176299RCV001807754RCV002288533RCV001375643RCV001787823RCV004549435

NM_000218.3(KCNQ1):c.1135T>C (p.Trp379Arg) SNV
Germline
Chr11:2587576 Conflicting classifications of pathogenicity SUDDEN INFANT DEATH SYNDROME
Long QT syndrome
Condition: not provided
Criteria Provided
Conflicting Classifications
CA005370 rs_199472768

5 SubmittersRCV000057559RCV000462343RCV000505766

NM_000218.3(KCNQ1):c.820A>G (p.Ile274Val) SNV
Germline
Chr11:2572885 Conflicting classifications of pathogenicity Congenital long QT syndrome
Condition: not provided
not specified
SUDDEN INFANT DEATH SYNDROME
Long QT syndrome
Atrial fibrillation, familial, 3
Cardiac arrhythmia
Cardiovascular phenotype
Short QT syndrome type 2
Long QT syndrome 1
Jervell and Lange-Nielsen syndrome 1
Criteria Provided
Conflicting Classifications
CA008353 rs_199472728

10 SubmittersRCV000057771RCV000182121RCV000219577RCV000148546RCV001080930RCV001108025RCV001841690RCV002426616RCV001108024RCV001102797RCV001108026

NM_000238.4(KCNH2):c.2684C>T (p.Thr895Met) SNV
Germline
Chr7:150948452 Conflicting classifications of pathogenicity SUDDEN INFANT DEATH SYNDROME
Long QT syndrome 2
Long QT syndrome
Condition: not provided
Long QT syndrome 1
Cardiac arrhythmia
Cardiovascular phenotype
Criteria Provided
Conflicting Classifications
CA007147 rs_199473434

10 SubmittersRCV000058151RCV000988000RCV000699702RCV001588890RCV001256913RCV001841715RCV004019008

NM_000335.5(SCN5A):c.2039G>A (p.Arg680His) SNV
Germline
Chr3:38597952 Conflicting classifications of pathogenicity SUDDEN INFANT DEATH SYNDROME
not specified
Condition: not provided
Cardiac arrhythmia
Cardiovascular phenotype
Criteria Provided
Conflicting Classifications
CA015757 rs_199473142

7 SubmittersRCV000058473RCV000156507RCV001699115RCV001842306RCV004019041

NM_000335.5(SCN5A):c.2989G>A (p.Ala997Thr) SNV
Germline
Chr3:38581170 Conflicting classifications of pathogenicity Brugada syndrome
Brugada syndrome
SUDDEN INFANT DEATH SYNDROME
Condition: not provided
Sick sinus syndrome 1
Ventricular fibrillation, paroxysmal familial, type 1
Long QT syndrome 3
Dilated cardiomyopathy 1E
Progressive familial heart block, type 1A
Cardiovascular phenotype
Cardiac arrhythmia
Cardiomyopathy
8 conditions
Criteria Provided
Conflicting Classifications
CA016710 rs_137854609

16 SubmittersRCV000058541RCV000171570RCV000766794RCV001145182RCV001145179RCV001145180RCV001145181RCV001147136RCV004019046RCV001842324RCV003149712RCV005394295

NM_000335.5(SCN5A):c.481G>A (p.Glu161Lys) SNV
Germline
Chr3:38622401 Pathogenic/Likely pathogenic Brugada syndrome
Condition: not provided
Cardiovascular phenotype
Brugada syndrome 1
Sick sinus syndrome 1
Dilated cardiomyopathy 1E
SUDDEN INFANT DEATH SYNDROME
Brugada syndrome 1
Long QT syndrome
Criteria Provided
Multiple Submitters
No Conflicts
CA018588 rs_199473062

10 SubmittersRCV000058710RCV001699194RCV002336213RCV004786347RCV005428999

NM_000335.5(SCN5A):c.4892G>A (p.Arg1631His) SNV
Germline
Chr3:38551477 Conflicting classifications of pathogenicity Conduction system disorder
Condition: not provided
SUDDEN INFANT DEATH SYNDROME
Long QT syndrome 3
Brugada syndrome 1
Sick sinus syndrome 1
Brugada syndrome
Cardiovascular phenotype
Brugada syndrome 1
Cardiac arrhythmia
Criteria Provided
Conflicting Classifications
CA018735 rs_199473286

11 SubmittersRCV000058723RCV000519341RCV001787861RCV001258072RCV001530198RCV003996546RCV002336214RCV003450919RCV003591672

NM_000335.5(SCN5A):c.5284G>A (p.Val1762Met) SNV
Germline
Chr3:38551085 Pathogenic Congenital long QT syndrome
Condition: not provided
SUDDEN INFANT DEATH SYNDROME
Long QT syndrome 3
Criteria Provided
Multiple Submitters
No Conflicts
CA019062 rs_199473631

5 SubmittersRCV000058760RCV000183112RCV001787862RCV004786351

NM_001267550.2(TTN):c.97492+1G>C SNV
Germline
Chr2:178542263 Pathogenic/Likely pathogenic Primary dilated cardiomyopathy
Dilated cardiomyopathy 1G
Autosomal recessive limb-girdle muscular dystrophy type 2J
Condition: not provided
Cardiomyopathy
SUDDEN INFANT DEATH SYNDROME
Cardiovascular phenotype
Criteria Provided
Multiple Submitters
No Conflicts
CA273675 rs_727505319

8 SubmittersRCV000156861RCV000462323RCV000184284RCV000769868RCV001788053RCV002362834

NM_174934.4(SCN4B):c.617C>T (p.Ser206Leu) SNV
Germline
Chr11:118137097 Conflicting classifications of pathogenicity SUDDEN INFANT DEATH SYNDROME
Condition: not provided
Long QT syndrome 10
Cardiovascular phenotype
Criteria Provided
Conflicting Classifications
CA199796 rs_140348243

5 SubmittersRCV000171568RCV000490150RCV000234662RCV002354426

NM_001267550.2(TTN):c.64898G>A (p.Arg21633Gln) SNV
Germline
Chr2:178584743 Conflicting classifications of pathogenicity Cardiovascular phenotype
not specified
Condition: not provided
SUDDEN INFANT DEATH SYNDROME
Criteria Provided
Conflicting Classifications
CA310295 rs_141965360

7 SubmittersRCV000619156RCV001328439RCV000714068RCV001788062

NM_000284.4(PDHA1):c.1132C>T (p.Arg378Cys) SNV
Germline
ChrX:19359612 Pathogenic Condition: not provided
Pyruvate dehydrogenase E1-alpha deficiency
SUDDEN INFANT DEATH SYNDROME
Pyruvate dehydrogenase complex deficiency
Reviewed By Expert Panel
CA323094 rs_863224147

8 SubmittersRCV000198575RCV000497402RCV001788065RCV001796726

NM_000891.3(KCNJ2):c.119G>A (p.Arg40Gln) SNV
Germline
Chr17:70175158 Conflicting classifications of pathogenicity Andersen Tawil syndrome
Atrial fibrillation, familial, 9
Short QT syndrome type 3
Condition: not provided
Short QT syndrome type 3
Andersen Tawil syndrome
Cardiovascular phenotype
SUDDEN INFANT DEATH SYNDROME
Atrial fibrillation, familial, 9
Short QT syndrome type 3
Andersen Tawil syndrome
Criteria Provided
Conflicting Classifications
CA8738692 rs_766143485

7 SubmittersRCV000308982RCV000347359RCV000406881RCV000489623RCV000795350RCV002348069RCV001788198RCV002487428

NM_001165963.4(SCN1A):c.3886T>A (p.Leu1296Met) SNV
Germline
Chr2:166009835 Conflicting classifications of pathogenicity Developmental and epileptic encephalopathy
SUDDEN INFANT DEATH SYNDROME
Criteria Provided
Conflicting Classifications
CA349053526 rs_375896308

2 SubmittersRCV000636357RCV001788307

NM_000363.5(TNNI3):c.556C>T (p.Arg186Trp) SNV
Germline
Chr19:55151911 Conflicting classifications of pathogenicity Condition: not provided
Cardiomyopathy
Hypertrophic cardiomyopathy
SUDDEN INFANT DEATH SYNDROME
Cardiovascular phenotype
Criteria Provided
Conflicting Classifications
CA051839 rs_760978512

6 SubmittersRCV000658349RCV001177934RCV001855374RCV001788314RCV004026030

NM_001127222.2(CACNA1A):c.3365G>A (p.Arg1122His) SNV
Germline
Chr19:13286691 Conflicting classifications of pathogenicity Condition: not provided
SUDDEN INFANT DEATH SYNDROME
Developmental and epileptic encephalopathy, 42
Episodic ataxia type 2
Criteria Provided
Conflicting Classifications
CA9240350 rs_201647627

3 SubmittersRCV001564629RCV001788589RCV001882665

NM_001165963.4(SCN1A):c.2045G>T (p.Gly682Val) SNV
Germline
Chr2:166042423 Conflicting classifications of pathogenicity SUDDEN INFANT DEATH SYNDROME
Inborn genetic diseases
Condition: not provided
Criteria Provided
Conflicting Classifications
CA349066188 rs_1697296215

3 SubmittersRCV001787410RCV002422851RCV004779139

NM_000335.5(SCN5A):c.3837+12C>T SNV
Germline
Chr3:38566397 Conflicting classifications of pathogenicity SUDDEN INFANT DEATH SYNDROME
Condition: not provided
Brugada syndrome 1
Criteria Provided
Conflicting Classifications
CA062323 rs_368550655

3 SubmittersRCV001787416RCV003541667RCV004698554

NM_001242896.3(DEPDC5):c.2446C>T (p.Gln816Ter) SNV
Germline
Chr22:31838776 Pathogenic/Likely pathogenic SUDDEN INFANT DEATH SYNDROME
Condition: not provided
Criteria Provided
Multiple Submitters
No Conflicts
CA411286825 rs_2148968418

2 SubmittersRCV001787417RCV002463033

NM_001242896.3(DEPDC5):c.2105-1G>A SNV
Germline
Chr22:31833914 Likely pathogenic SUDDEN INFANT DEATH SYNDROME Criteria Provided
Single Submitter
CA10196597 rs_781125997

1 SubmittersRCV001787420

NM_001743.6(CALM2):c.340G>A (p.Gly114Arg) SNV
Germline
Chr2:47161804 Pathogenic SUDDEN INFANT DEATH SYNDROME No Assertion Criteria Provided
CA346719185 rs_2103823712

1 SubmittersRCV001787705