chrX-137566786-C-CG

Variant names:

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

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PVS1 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
• Publications: 0 publications found

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]

LINC02931 (HGNC:55853): (long intergenic non-protein coding RNA 2931)

ACMG classification

Our verdict: Pathogenic. The variant received 12 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. There are 38 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 VariationId is 3572960.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003413.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ZIC3	NM_003413.4	MANE Select	c.97dupG	p.Ala33GlyfsTer97	frameshift	Exon 1 of 3	NP_003404.1	O60481-1
	ZIC3	NM_001330661.1		c.97dupG	p.Ala33GlyfsTer97	frameshift	Exon 1 of 3	NP_001317590.1	O60481-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ZIC3	ENST00000287538.10	TSL:1 MANE Select	c.97dupG	p.Ala33GlyfsTer97	frameshift	Exon 1 of 3	ENSP00000287538.5	O60481-1
	ZIC3	ENST00000919832.1		c.97dupG	p.Ala33GlyfsTer97	frameshift	Exon 4 of 6	ENSP00000589891.1
	ZIC3	ENST00000919833.1		c.97dupG	p.Ala33GlyfsTer97	frameshift	Exon 4 of 6	ENSP00000589892.1

Frequencies

GnomAD3 genomes Cov.: 24

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 24

ClinVar

ClinVar submissions

Significance: Likely pathogenic

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
1	-	-	Heterotaxy, visceral, 1, X-linked (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		1.1

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

Other links and lift over

hg19: chrX-136648945;