6-45903200-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PVS1_Strong PM2 PP5

The NM_016929.5(CLIC5):c.644G>A(p.Trp215Ter) variant causes a stop gained change. The variant allele was found at a frequency of 0.00000124 in 1,612,552 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: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: CLIC5 NM_016929.5 stop_gained
• Clinical Significance: Likely pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 5.02

Genes affected

CLIC5 (HGNC:13517): (chloride intracellular channel 5) This gene encodes a member of the chloride intracellular channel (CLIC) family of chloride ion channels. The encoded protein associates with actin-based cytoskeletal structures and may play a role in multiple processes including hair cell stereocilia formation, myoblast proliferation and glomerular podocyte and endothelial cell maintenance. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Dec 2011]

ACMG classification

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.148 CDS is truncated, and there are 1 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 6-45903200-C-T is Pathogenic according to our data. Variant chr6-45903200-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 694310.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CLIC5	NM_016929.5	c.644G>A	p.Trp215Ter	stop_gained	6/6	ENST00000339561.12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CLIC5	ENST00000339561.12	c.644G>A	p.Trp215Ter	stop_gained	6/6	1	NM_016929.5	P1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152170 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.000480

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460264 Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1 AN XY: 726426

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152288 Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1 AN XY: 74458

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.000475

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Hearing loss, autosomal recessive Pathogenic:1

Likely pathogenic, no assertion criteria provided

research

Laboratory of Molecular Genetics, Yakut Science Centre of Complex Medical Problems

Jun 23, 2017

The sequencing data were processed using an automated algorithm, including alignment of reads to the reference sequence of the human genome (hg19), post processing of alignment, identification of options and filtering of options by quality, as well as annotation of the identified options for all known transcripts of each gene from the RefSeq database using a number of methods predictions of pathogenicity of substitutions (SIFT, PolyPhen2-HDIV, PolyPhen2-HVAR, MutationTaster, LRT), as well as methods for calculating the evolutionary conservatism of positions (PhyloP, PhastCons). To assess the population frequencies of the identified variants, we used samples of the 1000 Genomes, ESP6500, and Exome Aggregation Consortium projects. To assess the clinical relevance of the identified options, the OMIM database, specialized databases for individual diseases (if any), and literature data were used. In conclusion, only options that are possibly related to the clinical manifestations of the patient are included. Polymorphisms classified according to various criteria as neutral are not included in the conclusion. This mutation leading to the formation of a premature stop codon p.Trp374 * (NP_001107558.1), which terminates the translation of the full-length protein CLIC5 (chloride intracellular channel 5 (CLIC5), transcript variant 1, mRNA). Since this nucleotide substitution leads to termination of translation of the full-length CLIC5 protein, it should be regarded as likely pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.63	D
BayesDel_noAF	Pathogenic	0.66
Cadd	Pathogenic	38
Dann	Uncertain	0.99
Eigen	Pathogenic	0.92
Eigen_PC	Pathogenic	0.81
FATHMM_MKL	Pathogenic	0.98	D
MutationTaster	Benign	1.0	D;D
Vest4		0.72
GERP RS		5.6

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: rs1043716893; hg19: chr6-45870937;