rs1555537961

Variant names:

• chr17-18119220-G-C
• rs1555537961
• NM_016239.4:c.420G>C

Your query was ambiguous. Multiple possible variants found:

• chr17-18119220-G-C
• chr17-18119220-G-T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The ENST00000647165.2(MYO15A):​c.420G>C​(p.Lys140Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,210 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: MYO15A ENST00000647165.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.838
• Publications: 0 publications found

Genes affected

MYO15A (HGNC:7594): (myosin XVA) This gene encodes an unconventional myosin. This protein differs from other myosins in that it has a long N-terminal extension preceding the conserved motor domain. Studies in mice suggest that this protein is necessary for actin organization in the hair cells of the cochlea. Mutations in this gene have been associated with profound, congenital, neurosensory, nonsyndromal deafness. This gene is located within the Smith-Magenis syndrome region on chromosome 17. Read-through transcripts containing an upstream gene and this gene have been identified, but they are not thought to encode a fusion protein. Several alternatively spliced transcript variants have been described, but their full length sequences have not been determined. [provided by RefSeq, Jul 2008]

MYO15A Gene-Disease associations (from GenCC):

• autosomal recessive nonsyndromic hearing loss 3

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), PanelApp Australia
• nonsyndromic genetic hearing loss

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• hearing loss, autosomal recessive

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.24243587).

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000647165.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYO15A	NM_016239.4	MANE Select	c.420G>C	p.Lys140Asn	missense	Exon 2 of 66	NP_057323.3

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYO15A	ENST00000647165.2	MANE Select	c.420G>C	p.Lys140Asn	missense	Exon 2 of 66	ENSP00000495481.1
	MYO15A	ENST00000583079.1	TSL:6	n.53G>C		non_coding_transcript_exon	Exon 1 of 1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1460210 Hom.: 0 Cov.: 35 AF XY: 0.00000138 AC XY: 1 AN XY: 726412

African (AFR) AF: 0.00 AC: 0 AN: 33474

American (AMR) AF: 0.00 AC: 0 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26124

East Asian (EAS) AF: 0.00 AC: 0 AN: 39692

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 51922

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111886

Other (OTH) AF: 0.00 AC: 0 AN: 60368

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.75
BayesDel_addAF	Benign	-0.0054	T
BayesDel_noAF	Benign	-0.25
CADD	Benign	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.037	T
Eigen	Benign	0.041
Eigen_PC	Benign	0.033
FATHMM_MKL	Benign	0.66	D
LIST_S2	Benign	0.67	T
M_CAP	Uncertain	0.16	D
MetaRNN	Benign	0.24	T
MetaSVM	Uncertain	-0.17	T
MutationAssessor	Benign	0.0	N
PhyloP100		0.84
PrimateAI	Uncertain	0.56	T
PROVEAN	Benign	-2.2	N
REVEL	Uncertain	0.43
Sift	Uncertain	0.0010	D
Sift4G	Pathogenic	0.0010	D
Polyphen		0.99	D
Vest4		0.33
MutPred		0.36		Loss of methylation at K140 (P = 0.002)
MVP		0.86
ClinPred		0.75	D
GERP RS		0.77
Varity_R		0.23
gMVP		0.46
Mutation Taster		=68/32	polymorphism

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

Other links and lift over

dbSNP: rs1555537961; hg19: chr17-18022534;