rs219774

Positions:

• chr21-36462745-C-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001146079.2(CLDN14):​c.-81-969G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.227 in 151,630 control chromosomes in the GnomAD database, including 4,163 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.23 (4163 hom., cov: 30)
• Consequence: CLDN14 NM_001146079.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.204

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]

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

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

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.93).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.272 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CLDN14	NM_001146079.2	c.-81-969G>A		intron_variant		ENST00000399135.6
CLDN14-AS1	NR_183529.1	n.468+16738C>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CLDN14	ENST00000399135.6	c.-81-969G>A		intron_variant		1	NM_001146079.2	P1
CLDN14-AS1	ENST00000428667.1	n.277+16738C>T		intron_variant, non_coding_transcript_variant		5
LNCTSI	ENST00000429588.1	n.54-17486C>T		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes AF: 0.227 AC: 34388 AN: 151512 Hom.: 4150 Cov.: 30

Gnomad AFR AF: 0.276

Gnomad AMI AF: 0.124

Gnomad AMR AF: 0.207

Gnomad ASJ AF: 0.222

Gnomad EAS AF: 0.00251

Gnomad SAS AF: 0.117

Gnomad FIN AF: 0.207

Gnomad MID AF: 0.209

Gnomad NFE AF: 0.231

Gnomad OTH AF: 0.237

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.227 AC: 34448 AN: 151630 Hom.: 4163 Cov.: 30 AF XY: 0.221 AC XY: 16389 AN XY: 74080

Gnomad4 AFR AF: 0.276

Gnomad4 AMR AF: 0.207

Gnomad4 ASJ AF: 0.222

Gnomad4 EAS AF: 0.00252

Gnomad4 SAS AF: 0.118

Gnomad4 FIN AF: 0.207

Gnomad4 NFE AF: 0.231

Gnomad4 OTH AF: 0.235

Alfa AF: 0.230 Hom.: 531

Bravo AF: 0.228

Asia WGS AF: 0.0900 AC: 315 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.93
CADD	Benign	6.1
DANN	Benign	0.58

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: rs219774; hg19: chr21-37835043;