rs200272339

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBS1_SupportingBS2

The NM_001145809.2(MYH14):​c.3778G>A​(p.Gly1260Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000067 in 1,612,080 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000066 ( 0 hom. )

Consequence

MYH14
NM_001145809.2 missense

Scores

2
17

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 0.302
Variant links:
Genes affected
MYH14 (HGNC:23212): (myosin heavy chain 14) This gene encodes a member of the myosin superfamily. The protein represents a conventional non-muscle myosin; it should not be confused with the unconventional myosin-14 (MYO14). Myosins are actin-dependent motor proteins with diverse functions including regulation of cytokinesis, cell motility, and cell polarity. Mutations in this gene result in one form of autosomal dominant hearing impairment. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2011]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.03543809).
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0000724 (11/151942) while in subpopulation NFE AF= 0.000132 (9/67974). AF 95% confidence interval is 0.0000681. There are 0 homozygotes in gnomad4. There are 2 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting
BS2
High AC in GnomAd4 at 11 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MYH14NM_001145809.2 linkc.3778G>A p.Gly1260Ser missense_variant Exon 29 of 43 ENST00000642316.2 NP_001139281.1 Q7Z406-2A1L2Z2B3KWH4
MYH14NM_001077186.2 linkc.3679G>A p.Gly1227Ser missense_variant Exon 28 of 42 NP_001070654.1 Q7Z406-6B3KWH4
MYH14NM_024729.4 linkc.3655G>A p.Gly1219Ser missense_variant Exon 27 of 41 NP_079005.3 Q7Z406-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MYH14ENST00000642316.2 linkc.3778G>A p.Gly1260Ser missense_variant Exon 29 of 43 NM_001145809.2 ENSP00000493594.1 Q7Z406-2

Frequencies

GnomAD3 genomes
AF:
0.0000724
AC:
11
AN:
151942
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000242
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:
0.0000942
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000132
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000771
AC:
19
AN:
246584
Hom.:
0
AF XY:
0.0000818
AC XY:
11
AN XY:
134438
show subpopulations
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000232
Gnomad NFE exome
AF:
0.000126
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000664
AC:
97
AN:
1460138
Hom.:
0
Cov.:
43
AF XY:
0.0000812
AC XY:
59
AN XY:
726348
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.000150
Gnomad4 NFE exome
AF:
0.0000774
Gnomad4 OTH exome
AF:
0.0000498
GnomAD4 genome
AF:
0.0000724
AC:
11
AN:
151942
Hom.:
0
Cov.:
31
AF XY:
0.0000270
AC XY:
2
AN XY:
74204
show subpopulations
Gnomad4 AFR
AF:
0.0000242
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000942
Gnomad4 NFE
AF:
0.000132
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000120
Hom.:
0
Bravo
AF:
0.0000453
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000118
AC:
1
ExAC
AF:
0.0000661
AC:
8
EpiCase
AF:
0.000109
EpiControl
AF:
0.000119

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:2
Jul 01, 2017
CeGaT Center for Human Genetics Tuebingen
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

May 08, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 1219 of the MYH14 protein (p.Gly1219Ser). This variant is present in population databases (rs200272339, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with MYH14-related conditions. ClinVar contains an entry for this variant (Variation ID: 44069). 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 MYH14 protein function with a negative predictive value of 80%. 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. -

Autosomal dominant nonsyndromic hearing loss 4A Uncertain:1
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

not specified Benign:1
Feb 12, 2013
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Gly1260Ser in exon 29 of MYH14: This variant is not expected to have clinical si gnificance because it is not evolutionarily conserved and some mammals, includin g mouse and rat, carry a serine (Ser) at this position. Furthermore, this varian t has been identified in 0.01% (1/8470) of European American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http://evs.gs.washington .edu/EVS/; dbSNP rs200272339). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.083
BayesDel_addAF
Benign
-0.34
T
BayesDel_noAF
Benign
-0.49
CADD
Benign
18
DANN
Benign
0.92
DEOGEN2
Benign
0.10
.;.;T;.;.;T;T
Eigen
Benign
-0.87
Eigen_PC
Benign
-0.72
FATHMM_MKL
Benign
0.29
N
LIST_S2
Uncertain
0.86
.;D;D;.;D;.;D
M_CAP
Benign
0.020
T
MetaRNN
Benign
0.035
T;T;T;T;T;T;T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
-1.1
.;.;N;.;.;N;.
PrimateAI
Uncertain
0.52
T
PROVEAN
Benign
1.4
.;N;.;.;.;.;.
REVEL
Benign
0.10
Sift
Benign
0.95
.;T;.;.;.;.;.
Sift4G
Benign
0.77
T;T;T;.;T;T;T
Polyphen
0.0020
B;B;B;B;B;B;.
Vest4
0.076
MVP
0.35
MPC
0.16
ClinPred
0.082
T
GERP RS
2.3
Varity_R
0.058
gMVP
0.096

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs200272339; hg19: chr19-50780111; API