chr14-30877686-T-G
Variant summary
Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PM1PM2PP3_StrongPP5
The NM_004086.3(COCH):c.197T>G(p.Val66Gly) 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. Variant has been reported in ClinVar as Pathogenic (no stars). Synonymous variant affecting the same amino acid position (i.e. V66V) has been classified as Likely benign.
Frequency
Genomes: not found (cov: 33)
Consequence
COCH
NM_004086.3 missense
NM_004086.3 missense
Scores
5
8
1
Clinical Significance
Conservation
PhyloP100: 5.49
Genes affected
COCH (HGNC:2180): (cochlin) The protein encoded by this gene is highly conserved in human, mouse, and chicken, showing 94% and 79% amino acid identity of human to mouse and chicken sequences, respectively. Hybridization to this gene was detected in spindle-shaped cells located along nerve fibers between the auditory ganglion and sensory epithelium. These cells accompany neurites at the habenula perforata, the opening through which neurites extend to innervate hair cells. This and the pattern of expression of this gene in chicken inner ear paralleled the histologic findings of acidophilic deposits, consistent with mucopolysaccharide ground substance, in temporal bones from DFNA9 (autosomal dominant nonsyndromic sensorineural deafness 9) patients. Mutations that cause DFNA9 have been reported in this gene. Alternative splicing results in multiple transcript variants encoding the same protein. Additional splice variants encoding distinct isoforms have been described but their biological validities have not been demonstrated. [provided by RefSeq, Oct 2008]
Genome browser will be placed here
ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 9 ACMG points.
PM1
?
In a domain LCCL (size 93) in uniprot entity COCH_HUMAN there are 30 pathogenic changes around while only 6 benign (83%) in NM_004086.3
PM2
?
Very rare variant in population databases, with high coverage;
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.962
PP5
?
Variant 14-30877686-T-G is Pathogenic according to our data. Variant chr14-30877686-T-G is described in ClinVar as [Pathogenic]. Clinvar id is 6608.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr14-30877686-T-G is described in Lovd as [Pathogenic].
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
COCH | NM_004086.3 | c.197T>G | p.Val66Gly | missense_variant | 4/12 | ENST00000396618.9 | |
LOC100506071 | NR_038356.1 | n.1618-1134A>C | intron_variant, non_coding_transcript_variant |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
COCH | ENST00000396618.9 | c.197T>G | p.Val66Gly | missense_variant | 4/12 | 1 | NM_004086.3 | P1 | |
ENST00000555108.1 | n.1618-1134A>C | intron_variant, non_coding_transcript_variant | 1 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD3 genomes
?
Cov.:
33
GnomAD4 exome Cov.: 30
GnomAD4 exome
Cov.:
30
GnomAD4 genome ? Cov.: 33
GnomAD4 genome
?
Cov.:
33
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link
Submissions by phenotype
Autosomal dominant nonsyndromic hearing loss 9 Pathogenic:1
Pathogenic, no assertion criteria provided | literature only | OMIM | Nov 01, 1998 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
Cadd
Pathogenic
Dann
Uncertain
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D;.;.;D;D;D;D
M_CAP
Uncertain
D
MetaRNN
Pathogenic
D;D;D;D;D;D;D
MetaSVM
Uncertain
D
MutationTaster
Benign
A;A;A;A
PrimateAI
Uncertain
T
REVEL
Pathogenic
Polyphen
0.96
.;D;D;.;.;.;D
Vest4
0.82, 0.87
MutPred
0.89
.;Loss of stability (P = 0.0055);Loss of stability (P = 0.0055);Loss of stability (P = 0.0055);Loss of stability (P = 0.0055);.;Loss of stability (P = 0.0055);
MVP
MPC
0.75
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at