X-155298907-C-G

Position:

• chrX-155298907-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001289.6(CLIC2):​c.171G>C​(p.Lys57Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 22)
• Consequence: CLIC2 NM_001289.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.0880

Genes affected

CLIC2 (HGNC:2063): (chloride intracellular channel 2) This gene encodes a chloride intracellular channel protein. Chloride channels are a diverse group of proteins that regulate fundamental cellular processes including stabilization of cell membrane potential, transepithelial transport, maintenance of intracellular pH, and regulation of cell volume. This protein plays a role in inhibiting the function of ryanodine receptor 2. A mutation in this gene is the cause of an X-linked form of cognitive disability. [provided by RefSeq, Jul 2017]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CLIC2	NM_001289.6	c.171G>C	p.Lys57Asn	missense_variant	3/6	ENST00000369449.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CLIC2	ENST00000369449.7	c.171G>C	p.Lys57Asn	missense_variant	3/6	1	NM_001289.6	P1
CLIC2	ENST00000321926.4	c.167+129G>C		intron_variant		3
CLIC2	ENST00000465553.5	n.286G>C		non_coding_transcript_exon_variant	3/7	3
CLIC2	ENST00000491205.1	n.225G>C		non_coding_transcript_exon_variant	4/6	2

Frequencies

GnomAD3 genomes Cov.: 22

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 22

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

X-linked intellectual disability-cardiomegaly-congestive heart failure syndrome Uncertain:1

Uncertain significance, criteria provided, single submitter

research

Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center

Mar 25, 2024

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Benign	-0.19	T
BayesDel_noAF	Benign	-0.50
CADD	Benign	20
DANN	Uncertain	1.0
DEOGEN2	Benign	0.38	T
FATHMM_MKL	Uncertain	0.86	D
LIST_S2	Uncertain	0.90	D
M_CAP	Benign	0.040	D
MetaRNN	Uncertain	0.68	D
MetaSVM	Benign	-0.72	T
MutationAssessor	Uncertain	2.6	M
MutationTaster	Benign	1.0	D
PrimateAI	Uncertain	0.74	T
PROVEAN	Pathogenic	-4.7	D
REVEL	Uncertain	0.29
Sift	Uncertain	0.0040	D
Sift4G	Uncertain	0.012	D
Polyphen		1.0	D
Vest4		0.80
MutPred		0.41		Loss of methylation at K57 (P = 0.0075);
MVP		0.70
MPC		1.7
ClinPred		0.99	D
GERP RS		1.6
Varity_R		0.94
gMVP		0.94

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

No publications associated with this variant yet.

Other links and lift over

hg19: chrX-154528220;