NM_004006.3(DMD):c.1337A>G (p.His446Arg) AND Dilated cardiomyopathy 3B

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Apr 27, 2017
Review status:: 1 star out of maximum of 4 stars
criteria provided, single submitter

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV001168118.12

Allele description [Variation Report for NM_004006.3(DMD):c.1337A>G (p.His446Arg)]

NM_004006.3(DMD):c.1337A>G (p.His446Arg)

Gene:

DMD:dystrophin [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

Xp21.1

Genomic location:

Preferred name:

NM_004006.3(DMD):c.1337A>G (p.His446Arg)

Other names:

p.H446R:CAT>CGT

HGVS:

NC_000023.11:g.32614448T>C
NG_012232.1:g.730162A>G
NM_000109.4:c.1313A>G
NM_004006.3:c.1337A>GMANE SELECT
NM_004009.3:c.1325A>G
NM_004010.3:c.968A>G
NP_000100.3:p.His438Arg
NP_003997.1:p.His446Arg
NP_003997.2:p.His446Arg
NP_004000.1:p.His442Arg
NP_004001.1:p.His323Arg
LRG_199t1:c.1337A>G
LRG_199:g.730162A>G
LRG_199p1:p.His446Arg
NC_000023.10:g.32632565T>C
NM_004006.2:c.1337A>G

Protein change:

H323R

Links:

dbSNP: rs72468699

NCBI 1000 Genomes Browser:

rs72468699

Molecular consequence:

NM_000109.4:c.1313A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_004006.3:c.1337A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_004009.3:c.1325A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_004010.3:c.968A>G - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Dilated cardiomyopathy 3B (CMD3B)
Synonyms:: CARDIOMYOPATHY, DILATED, X-LINKED; CMD3B: DMD-Related Dilated Cardiomyopathy
Identifiers:: MONDO: MONDO:0010542; MedGen: C3668940; Orphanet: 154; OMIM: 302045

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV001330688	Illumina Laboratory Services, Illumina	criteria provided, single submitter (ICSL Variant Classification Criteria 13 December 2019)	Uncertain significance (Apr 27, 2017)	germline	clinical testing	Citation Link

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV001330688

Illumina Laboratory Services, Illumina

criteria provided, single submitter

(ICSL Variant Classification Criteria 13 December 2019)

Uncertain significance
(Apr 27, 2017)

germline

clinical testing

Citation Link

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Details of each submission

From Illumina Laboratory Services, Illumina, SCV001330688.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	not provided

Description

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Jul 28, 2025

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