X-153588455-C-T

Position:

• chrX-153588455-C-T

Variant summary

Our verdict is Pathogenic. Variant got 13 ACMG points: 13P and 0B. PVS1 PM2 PP3_Moderate PP5

The NM_152274.5(CCNQ):​c.658-1G>A variant causes a splice acceptor change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency: Genomes: not found (cov: 25)
• Consequence: CCNQ NM_152274.5 splice_acceptor
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 4.92

Genes affected

CCNQ (HGNC:28434): (cyclin Q) Mutations in this gene have been shown to cause an X-linked dominant STAR syndrome that typically manifests syndactyly, telecanthus and anogenital and renal malformations. The protein encoded by this gene contains a cyclin-box-fold domain which suggests it may have a role in controlling nuclear cell division cycles. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Oct 2008]

ACMG classification

Verdict is Pathogenic. Variant got 13 ACMG points.

• PVS1: Splicing +-2 bp (donor or acceptor) variant, LoF is a know mechanism of disease,
• PM2: Very rare variant in population databases, with high coverage
• PP3: BayesDel_addAF computational evidence supports a deleterious effect, 0.33
• PP5: Variant X-153588455-C-T is Pathogenic according to our data. Variant chrX-153588455-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 10675.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CCNQ	NM_152274.5	c.658-1G>A		splice_acceptor_variant		ENST00000576892.8
CCNQ	XM_011531214.3	c.532-1G>A		splice_acceptor_variant
CCNQ	XM_047442631.1	c.430-1G>A		splice_acceptor_variant
CCNQ	NM_001130997.3	c.658-61G>A		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CCNQ	ENST00000576892.8	c.658-1G>A		splice_acceptor_variant		1	NM_152274.5	P1

Frequencies

GnomAD3 genomes Cov.: 25

GnomAD4 exome Cov.: 27

GnomAD4 genome Cov.: 25

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Syndactyly-telecanthus-anogenital and renal malformations syndrome Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Mar 01, 2008

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.33	D
BayesDel_noAF	Pathogenic	0.24
CADD	Pathogenic	26
DANN	Uncertain	0.99
FATHMM_MKL	Uncertain	0.96	D
MutationTaster	Benign	1.0	D
GERP RS		4.4

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs63749972; hg19: chrX-152853913;