rs1060502636

Variant names:

• chrX-32518098-C-G
• rs1060502636
• NM_004006.3:c.2202G>C

Your query was ambiguous. Multiple possible variants found:

• chrX-32518098-C-G
• chrX-32518098-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP3

The NM_004006.3(DMD):​c.2202G>C​(p.Trp734Cys) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. W734R) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 22)
  • Exomes 𝑓: 9.1e-7 (0 hom. 1 hem.)
  • Failed GnomAD Quality Control
• Consequence: DMD NM_004006.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.27
• Publications: 0 publications found

Genes affected

DMD (HGNC:2928): (dystrophin) This gene spans a genomic range of greater than 2 Mb and encodes a large protein containing an N-terminal actin-binding domain and multiple spectrin repeats. The encoded protein forms a component of the dystrophin-glycoprotein complex (DGC), which bridges the inner cytoskeleton and the extracellular matrix. Deletions, duplications, and point mutations at this gene locus may cause Duchenne muscular dystrophy (DMD), Becker muscular dystrophy (BMD), or cardiomyopathy. Alternative promoter usage and alternative splicing result in numerous distinct transcript variants and protein isoforms for this gene. [provided by RefSeq, Dec 2016]

DMD Gene-Disease associations (from GenCC):

• Becker muscular dystrophy

  Inheritance: XL Classification: DEFINITIVE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet
• dilated cardiomyopathy 3B

  Inheritance: XL Classification: DEFINITIVE Submitted by: Ambry Genetics
• Duchenne and Becker muscular dystrophy

  Inheritance: XL Classification: DEFINITIVE Submitted by: Myriad Women’s Health
• Duchenne muscular dystrophy

  Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P, Orphanet
• progressive muscular dystrophy

  Inheritance: XL Classification: DEFINITIVE Submitted by: ClinGen
• familial isolated dilated cardiomyopathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• non-syndromic X-linked intellectual disability

  Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
• symptomatic form of muscular dystrophy of Duchenne and Becker in female carriers

  Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.821

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DMD	NM_004006.3	c.2202G>C	p.Trp734Cys	missense_variant	Exon 18 of 79	ENST00000357033.9	NP_003997.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DMD	ENST00000357033.9	c.2202G>C	p.Trp734Cys	missense_variant	Exon 18 of 79	1	NM_004006.3	ENSP00000354923.3

Frequencies

GnomAD3 genomes Cov.: 22

GnomAD2 exomes AF: 0.00000547 AC: 1 AN: 182739 AF XY: 0.0000149

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 9.12e-7 AC: 1 AN: 1096717 Hom.: 0 Cov.: 29 AF XY: 0.00000276 AC XY: 1 AN XY: 362169

African (AFR) AF: 0.00 AC: 0 AN: 26373

American (AMR) AF: 0.00 AC: 0 AN: 35186

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 19372

East Asian (EAS) AF: 0.00 AC: 0 AN: 30172

South Asian (SAS) AF: 0.0000185 AC: 1 AN: 54069

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 40516

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4131

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 840867

Other (OTH) AF: 0.00 AC: 0 AN: 46031

GnomAD4 genome Cov.: 22

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.93
BayesDel_addAF	Uncertain	0.054	T
BayesDel_noAF	Uncertain	-0.010
CADD	Uncertain	25
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.45	.;T;.;.;D
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Uncertain	0.95	D;.;D;D;D
M_CAP	Benign	0.064	D
MetaRNN	Pathogenic	0.82	D;D;D;D;D
MetaSVM	Uncertain	0.17	D
PhyloP100		4.3
PrimateAI	Pathogenic	0.82	D
PROVEAN	Pathogenic	-7.9	.;D;.;D;D
REVEL	Uncertain	0.48
Sift	Benign	0.034	.;D;.;D;D
Sift4G	Pathogenic	0.0	D;D;D;D;D
Polyphen		0.99, 1.0	.;D;.;.;D
Vest4		0.90
MutPred		0.59		.;.;Gain of catalytic residue at T736 (P = 0.0265);Gain of catalytic residue at T736 (P = 0.0265);.;
MVP		0.82
MPC		0.13
ClinPred		0.89	D
GERP RS		5.1
gMVP		0.68
Mutation Taster		=86/14	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs1060502636; hg19: chrX-32536215;