rs727504447

chr12-57048232-C-Gchr12-57048232-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_005379.4(MYO1A):c.92G>C(p.Arg31Pro) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R31H) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: MYO1A NM_005379.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.29

Genes affected

MYO1A (HGNC:7595): (myosin IA) This gene encodes a member of the myosin superfamily. The protein represents an unconventional myosin; it should not be confused with the conventional skeletal muscle myosin-1 (MYH1). Unconventional myosins contain the basic domains characteristic of conventional myosins and are further distinguished from class members by their tail domains. They function as actin-based molecular motors. Mutations in this gene have been associated with autosomal dominant deafness. Alternatively spliced variants have been found for this gene. [provided by RefSeq, Dec 2011]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.983

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MYO1A	NM_005379.4	c.92G>C	p.Arg31Pro	missense_variant	2/28	ENST00000300119.8
MYO1A	NM_001256041.2	c.92G>C	p.Arg31Pro	missense_variant	3/29
MYO1A	XM_047428876.1	c.92G>C	p.Arg31Pro	missense_variant	3/29
MYO1A	XM_011538373.3	c.92G>C	p.Arg31Pro	missense_variant	2/25

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MYO1A	ENST00000300119.8	c.92G>C	p.Arg31Pro	missense_variant	2/28	1	NM_005379.4	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Pathogenic	0.43	D
BayesDel_noAF	Pathogenic	0.38
Cadd	Pathogenic	31
Dann	Uncertain	1.0
DEOGEN2	Pathogenic	0.86	D;D;.
Eigen	Pathogenic	0.91
Eigen_PC	Pathogenic	0.76
FATHMM_MKL	Pathogenic	0.99	D
M_CAP	Benign	0.054	D
MetaRNN	Pathogenic	0.98	D;D;D
MetaSVM	Pathogenic	1.0	D
MutationAssessor	Pathogenic	4.5	H;H;.
MutationTaster	Benign	1.0	D;D
PrimateAI	Benign	0.47	T
PROVEAN	Pathogenic	-5.8	D;D;D
REVEL	Pathogenic	0.90
Sift	Uncertain	0.0010	D;D;D
Sift4G	Pathogenic	0.0010	D;D;.
Polyphen		1.0	D;D;.
Vest4		0.95
MutPred		0.96		Gain of ubiquitination at K26 (P = 0.068);Gain of ubiquitination at K26 (P = 0.068);Gain of ubiquitination at K26 (P = 0.068);
MVP		0.94
MPC		0.55
ClinPred		1.0	D
GERP RS		4.8
Varity_R		0.98
gMVP		0.96

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

Other links and lift over

dbSNP: rs727504447; hg19: chr12-57442016;