NM_001145809.2:c.4441C>T

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_001145809.2(MYH14):c.4441C>T(p.Arg1481Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000347 in 1,611,826 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

MYH14
NM_001145809.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 3.03

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]

MYH14 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.35082304).

BS2

High AC in GnomAdExome4 at 52 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYH14	NM_001145809.2 link	c.4441C>T	p.Arg1481Cys	missense_variant	Exon 33 of 43	ENST00000642316.2	NP_001139281.1	Q7Z406-2A1L2Z2B3KWH4
MYH14	NM_001077186.2 link	c.4342C>T	p.Arg1448Cys	missense_variant	Exon 32 of 42		NP_001070654.1	Q7Z406-6B3KWH4
MYH14	NM_024729.4 link	c.4318C>T	p.Arg1440Cys	missense_variant	Exon 31 of 41		NP_079005.3	Q7Z406-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MYH14	ENST00000642316.2 link	c.4441C>T	p.Arg1481Cys	missense_variant	Exon 33 of 43		NM_001145809.2	ENSP00000493594.1		Q7Z406-2

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152234

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000292

AC:

AN:

239332

Hom.:

AF XY:

0.0000152

AC XY:

AN XY:

131786

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000146

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000188

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000356

AC:

AN:

1459592

Hom.:

Cov.:

AF XY:

0.0000331

AC XY:

AN XY:

726130

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000405

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152234

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74372

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000378

ExAC

AF:

0.0000167

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Jul 24, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 1440 of the MYH14 protein (p.Arg1440Cys). This variant is present in population databases (rs727503227, 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: 164194). 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) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on MYH14 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. -

Feb 10, 2023

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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 -

not specified

Uncertain:1

Feb 07, 2014

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The Arg1481Cys variant in MYH14 has not been reported in individuals with hearin g loss and data from large population studies is insufficient to assess the freq uency of this variant. Computational analyses (biochemical amino acid properties , conservation, AlignGVGD, PolyPhen2, and SIFT) do not provide strong support fo r or against an impact to the protein. In summary, additional information is nee ded to determine the clinical significance of this variant. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.24

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.80

.;.;.;D;.;.;D;T

Eigen

Uncertain

0.29

Eigen_PC

Uncertain

0.27

FATHMM_MKL

Benign

0.70

LIST_S2

Pathogenic

0.98

.;D;D;D;.;D;.;D

M_CAP

Uncertain

0.28

MetaRNN

Benign

0.35

T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.61

MutationAssessor

Benign

1.0

.;.;.;L;.;.;L;.

PrimateAI

Uncertain

0.65

PROVEAN

Uncertain

-3.4

.;.;D;.;.;.;.;.

REVEL

Uncertain

0.30

Sift

Uncertain

0.0020

.;.;D;.;.;.;.;.

Sift4G

Uncertain

0.020

D;D;D;D;.;D;D;D

Polyphen

0.99

D;.;D;D;D;D;D;.

Vest4

0.36

MutPred

0.39

.;.;.;Loss of MoRF binding (P = 0.008);.;.;Loss of MoRF binding (P = 0.008);.;

MVP

0.65

MPC

0.54

ClinPred

0.60

GERP RS

4.0

Varity_R

0.15

gMVP

0.19

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over