NM_000260.4(MYO7A):c.4013G>A (p.Arg1338His) AND not provided

Germline classification:: Uncertain significance (2 submissions)
Last evaluated:: Sep 15, 2022
Review status:: 2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts

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:: RCV001568847.4

Allele description [Variation Report for NM_000260.4(MYO7A):c.4013G>A (p.Arg1338His)]

NM_000260.4(MYO7A):c.4013G>A (p.Arg1338His)

Gene:

MYO7A:myosin VIIA [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

11q13.5

Genomic location:

Preferred name:

NM_000260.4(MYO7A):c.4013G>A (p.Arg1338His)

HGVS:

NC_000011.10:g.77192139G>A
NG_009086.2:g.68894G>A
NM_000260.4:c.4013G>AMANE SELECT
NM_001127180.2:c.4013G>A
NM_001369365.1:c.3980G>A
NP_000251.3:p.Arg1338His
NP_001120652.1:p.Arg1338His
NP_001356294.1:p.Arg1327His
LRG_1420t1:c.4013G>A
LRG_1420:g.68894G>A
LRG_1420p1:p.Arg1338His
NC_000011.9:g.76903184G>A
NM_000260.3:c.4013G>A

Protein change:

R1327H

Links:

dbSNP: rs778477059

NCBI 1000 Genomes Browser:

rs778477059

Molecular consequence:

NM_000260.4:c.4013G>A - missense variant - [Sequence Ontology: SO:0001583]
NM_001127180.2:c.4013G>A - missense variant - [Sequence Ontology: SO:0001583]
NM_001369365.1:c.3980G>A - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Synonyms:: none provided
Identifiers:: MedGen: C3661900

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV001792789	GeneDx	criteria provided, single submitter (GeneDx Variant Classification Process June 2021)	Uncertain significance (Feb 2, 2021)	germline	clinical testing	Citation Link,
SCV003516434	Invitae	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Sep 15, 2022)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV001792789

GeneDx

criteria provided, single submitter

(GeneDx Variant Classification Process June 2021)

Uncertain significance
(Feb 2, 2021)

germline

clinical testing

Citation Link,

SCV003516434

Invitae

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Sep 15, 2022)

germline

clinical testing

PubMed (1)
[See all records that cite this PMID]

Help

Summary from all submissions

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

Citations

PubMed

Sherloc: a comprehensive refinement of the ACMG-AMP variant classification criteria.

Nykamp K, Anderson M, Powers M, Garcia J, Herrera B, Ho YY, Kobayashi Y, Patil N, Thusberg J, Westbrook M; Invitae Clinical Genomics Group., Topper S.

Genet Med. 2017 Oct;19(10):1105-1117. doi: 10.1038/gim.2017.37. Epub 2017 May 11. Erratum in: Genet Med. 2020 Jan;22(1):240-242.

PubMed [citation]

PMID:: 28492532
PMCID:: PMC5632818

Details of each submission

From GeneDx, SCV001792789.1

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

Description

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge

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

From Invitae, SCV003516434.1

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

Description

This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 1338 of the MYO7A protein (p.Arg1338His). This variant is present in population databases (rs778477059, gnomAD 0.004%). This variant has not been reported in the literature in individuals affected with MYO7A-related conditions. ClinVar contains an entry for this variant (Variation ID: 1202976). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt MYO7A protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain 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: Dec 24, 2023

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