chrX-137566786-C-CG

Variant names:

• chrX-137566786-C-CG
• NM_003413.4:c.97dupG

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PVS1_Strong PM2 PP5_Moderate

The NM_003413.4(ZIC3):​c.97dupG​(p.Ala33GlyfsTer97) variant causes a frameshift 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 Likely pathogenic (★).

• Frequency: Genomes: not found (cov: 24)
• Consequence: ZIC3 NM_003413.4 frameshift
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 1.10

Genes affected

ZIC3 (HGNC:12874): (Zic family member 3) This gene encodes a member of the ZIC family of C2H2-type zinc finger proteins. This nuclear protein probably functions as a transcription factor in early stages of left-right body axis formation. Mutations in this gene cause X-linked visceral heterotaxy, which includes congenital heart disease and left-right axis defects in organs. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.93 CDS is truncated, and there are 3 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant X-137566786-C-CG is Pathogenic according to our data. Variant chrX-137566786-C-CG is described in ClinVar as [Likely_pathogenic]. Clinvar id is 3572960.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ZIC3	NM_003413.4	c.97dupG	p.Ala33GlyfsTer97	frameshift_variant	Exon 1 of 3	ENST00000287538.10	NP_003404.1
ZIC3	NM_001330661.1	c.97dupG	p.Ala33GlyfsTer97	frameshift_variant	Exon 1 of 3		NP_001317590.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ZIC3	ENST00000287538.10	c.97dupG	p.Ala33GlyfsTer97	frameshift_variant	Exon 1 of 3	1	NM_003413.4	ENSP00000287538.5
ZIC3	ENST00000370606.3	c.97dupG	p.Ala33GlyfsTer97	frameshift_variant	Exon 1 of 3	5		ENSP00000359638.3

Frequencies

GnomAD3 genomes Cov.: 24

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 24

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Heterotaxy, visceral, 1, X-linked Pathogenic:1

Oct 18, 2024

Center For Human Genetics And Laboratory Diagnostics, Dr. Klein, Dr. Rost And Colleagues

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

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

No publications associated with this variant yet.

Other links and lift over

hg19: chrX-136648945;