rs369623931

Variant names:

• chrX-32345985-C-A
• rs369623931
• NM_004006.3:c.5544G>T

Your query was ambiguous. Multiple possible variants found:

• chrX-32345985-C-A
• chrX-32345985-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_004006.3(DMD):​c.5544G>T​(p.Lys1848Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000271 in 110,519 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. K1848K) has been classified as Likely benign.

• Frequency: Genomes: 𝑓 0.000027 (0 hom., 0 hem., cov: 22)
• Consequence: DMD NM_004006.3 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:3
• Conservation: PhyloP100: 2.56
• 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: Orphanet, G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
• 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 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.16646484).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004006.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DMD	NM_004006.3	MANE Select	c.5544G>T	p.Lys1848Asn	missense	Exon 39 of 79	NP_003997.2	P11532-1
	DMD	NM_004009.3		c.5532G>T	p.Lys1844Asn	missense	Exon 39 of 79	NP_004000.1	P11532
	DMD	NM_000109.4		c.5520G>T	p.Lys1840Asn	missense	Exon 39 of 79	NP_000100.3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DMD	ENST00000357033.9	TSL:1 MANE Select	c.5544G>T	p.Lys1848Asn	missense	Exon 39 of 79	ENSP00000354923.3	P11532-1
	DMD	ENST00000378677.6	TSL:5	c.5532G>T	p.Lys1844Asn	missense	Exon 39 of 79	ENSP00000367948.2	P11532-11
	DMD	ENST00000619831.5	TSL:5	c.1512G>T	p.Lys504Asn	missense	Exon 11 of 51	ENSP00000479270.2	A0A087WV90

Frequencies

GnomAD3 genomes AF: 0.0000271 AC: 3 AN: 110519 Hom.: 0 Cov.: 22

Gnomad AFR AF: 0.0000984

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000110 AC: 2 AN: 182303 AF XY: 0.00

Gnomad AFR exome AF: 0.000153

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 Cov.: 30

GnomAD4 genome AF: 0.0000271 AC: 3 AN: 110519 Hom.: 0 Cov.: 22 AF XY: 0.00 AC XY: 0 AN XY: 32863

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.0000984 AC: 3 AN: 30499

American (AMR) AF: 0.00 AC: 0 AN: 10334

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 2627

East Asian (EAS) AF: 0.00 AC: 0 AN: 3517

South Asian (SAS) AF: 0.00 AC: 0 AN: 2622

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 5831

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 231

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 52682

Other (OTH) AF: 0.00 AC: 0 AN: 1490

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.0000343967), which strongly suggests a high chance of mosaicism in these individuals.

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000189

ESP6500AA AF: 0.000261 AC: 1

ESP6500EA AF: 0.00 AC: 0

ExAC AF: 0.0000165 AC: 2

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	1	-	Cardiovascular phenotype (1)
-	1	-	Duchenne muscular dystrophy (1)
-	1	-	Duchenne muscular dystrophy;C0878544:Cardiomyopathy;C0917713:Becker muscular dystrophy;na:Dystrophin deficiency (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.46
BayesDel_addAF	Benign	-0.34	T
BayesDel_noAF	Benign	-0.46
CADD	Uncertain	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.28	T
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Uncertain	0.86	D
M_CAP	Uncertain	0.24	D
MetaRNN	Benign	0.17	T
MetaSVM	Benign	-0.86	T
PhyloP100		2.6
PrimateAI	Uncertain	0.71	T
PROVEAN	Benign	-1.5	N
REVEL	Benign	0.098
Sift	Uncertain	0.013	D
Sift4G	Uncertain	0.0070	D
Polyphen		1.0	D
Vest4		0.45
MutPred		0.35		Loss of ubiquitination at K1848 (P = 0.0116)
MVP		0.73
MPC		0.056
ClinPred		0.46	T
GERP RS		5.8
gMVP		0.21
Mutation Taster		=91/9	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: rs369623931; hg19: chrX-32364102;