chr21-36461002-C-T

Variant names:

• chr21-36461002-C-T
• rs786204841
• NM_001146079.2:c.694G>A

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3 PP5

The NM_001146079.2(CLDN14):​c.694G>A​(p.Gly232Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,460,768 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (no stars).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: CLDN14 NM_001146079.2 missense
• Clinical Significance: Pathogenic/Likely pathogenic no assertion criteria provided P:2
• Conservation: PhyloP100: 4.40
• Publications: 10 publications found

Genes affected

CLDN14 (HGNC:2035): (claudin 14) Tight junctions represent one mode of cell-to-cell adhesion in epithelial or endothelial cell sheets, forming continuous seals around cells and serving as a physical barrier to prevent solutes and water from passing freely through the paracellular space. These junctions are comprised of sets of continuous networking strands in the outwardly facing cytoplasmic leaflet, with complementary grooves in the inwardly facing extracytoplasmic leaflet. The protein encoded by this gene, a member of the claudin family, is an integral membrane protein and a component of tight junction strands. The encoded protein also binds specifically to the WW domain of Yes-associated protein. Defects in this gene are the cause of an autosomal recessive form of nonsyndromic sensorineural deafness. It is also reported that four synonymous variants in this gene are associated with kidney stones and reduced bone mineral density. Several transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Jun 2010]

LNCTSI (HGNC:56660): (lncRNA TGF-beta/SMAD3 pathway interacting)

CLDN14-AS1 (HGNC:55953): (CLDN14 antisense RNA 1)

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.789
• PP5: Variant 21-36461002-C-T is Pathogenic according to our data. Variant chr21-36461002-C-T is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 189333.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001146079.2. 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
	CLDN14	NM_001146079.2	MANE Select	c.694G>A	p.Gly232Arg	missense	Exon 2 of 2	NP_001139551.1
	CLDN14	NM_001146077.2		c.694G>A	p.Gly232Arg	missense	Exon 3 of 3	NP_001139549.1
	CLDN14	NM_001146078.3		c.694G>A	p.Gly232Arg	missense	Exon 3 of 3	NP_001139550.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CLDN14	ENST00000399135.6	TSL:1 MANE Select	c.694G>A	p.Gly232Arg	missense	Exon 2 of 2	ENSP00000382087.1
	CLDN14	ENST00000342108.2	TSL:1	c.694G>A	p.Gly232Arg	missense	Exon 3 of 3	ENSP00000339292.2
	CLDN14	ENST00000399136.5	TSL:1	c.694G>A	p.Gly232Arg	missense	Exon 3 of 3	ENSP00000382088.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1460768 Hom.: 0 Cov.: 30 AF XY: 0.00000275 AC XY: 2 AN XY: 726668

African (AFR) AF: 0.00 AC: 0 AN: 33464

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39700

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86206

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53402

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4962

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111900

Other (OTH) AF: 0.00 AC: 0 AN: 60274

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000113

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:2

Revision: no assertion criteria provided

Submissions by phenotype

Autosomal recessive nonsyndromic hearing loss 29 Pathogenic:2

Feb 01, 2012

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

Feb 26, 2019

Genetic Testing Center for Deafness, Department of Otolaryngology Head & Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital

Significance: Likely pathogenic

Review Status: no assertion criteria provided

Collection Method: case-control

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.35
BayesDel_addAF	Pathogenic	0.30	D
BayesDel_noAF	Pathogenic	0.20
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.30	T
Eigen	Uncertain	0.46
Eigen_PC	Uncertain	0.48
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.90	D
M_CAP	Uncertain	0.15	D
MetaRNN	Pathogenic	0.79	D
MetaSVM	Uncertain	0.14	D
MutationAssessor	Benign	0.0	N
PhyloP100		4.4
PrimateAI	Uncertain	0.67	T
PROVEAN	Uncertain	-2.6	D
REVEL	Uncertain	0.56
Sift	Uncertain	0.0030	D
Sift4G	Uncertain	0.0070	D
Polyphen		1.0	D
Vest4		0.83
MutPred		0.36		Gain of solvent accessibility (P = 0.0171)
MVP		0.88
MPC		0.97
ClinPred		0.97	D
GERP RS		4.6
Varity_R		0.35
gMVP		0.71
Mutation Taster		=1/99	disease causing (ClinVar)

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: rs786204841; hg19: chr21-37833300;