X-110688773-TGA-T

Position:

• chrX-110688773-TGA-T

Variant summary

Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PVS1 PP5

The NM_001143981.2(CHRDL1):​c.807_808del​(p.His270TrpfsTer22) variant causes a frameshift change involving the alteration of a conserved nucleotide. Variant has been reported in ClinVar as Pathogenic (no stars). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 20)
• Consequence: CHRDL1 NM_001143981.2 frameshift
• Clinical Significance: Pathogenic no assertion criteria provided P:2
• Conservation: PhyloP100: 7.75

Genes affected

CHRDL1 (HGNC:29861): (chordin like 1) This gene encodes an antagonist of bone morphogenetic protein 4. The encoded protein may play a role in topographic retinotectal projection and in the regulation of retinal angiogenesis in response to hypoxia. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jan 2009]

ACMG classification

Verdict is Likely_pathogenic. Variant got 9 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PP5: Variant X-110688773-TGA-T is Pathogenic according to our data. Variant chrX-110688773-TGA-T is described in ClinVar as [Pathogenic]. Clinvar id is 218164.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CHRDL1	NM_001143981.2	c.807_808del	p.His270TrpfsTer22	frameshift_variant	9/12	ENST00000372042.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CHRDL1	ENST00000372042.6	c.807_808del	p.His270TrpfsTer22	frameshift_variant	9/12	2	NM_001143981.2	A1

Frequencies

GnomAD3 genomes Cov.: 20

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

GnomAD4 genome Cov.: 20

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:2

Revision: no assertion criteria provided

Submissions by phenotype

Megalocornea Pathogenic:2

Pathogenic, no assertion criteria provided	literature only	OMIM	Jun 01, 2015	- -
Pathogenic, no assertion criteria provided	clinical testing	Institute of Human Genetics, Martin-Luther-Universität Halle-Wittemberg	Dec 01, 2014	supported by segregation analysis -

Computational scores

Source: dbNSFP v4.3

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: rs863225435; hg19: chrX-109932001;