chrX-137567495-C-A

Variant names:

• chrX-137567495-C-A
• rs122462166
• NM_003413.4:c.804C>A

Variant summary

Our verdict is Pathogenic. The variant received 11 ACMG points: 11P and 0B. PVS1 PM2 PP5

The NM_003413.4(ZIC3):​c.804C>A​(p.Cys268*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 25)
• Consequence: ZIC3 NM_003413.4 stop_gained
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 1.77
• Publications: 4 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 11 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant X-137567495-C-A is Pathogenic according to our data. Variant chrX-137567495-C-A is described in ClinVar as Pathogenic. ClinVar VariationId is 11434.Status of the report is no_assertion_criteria_provided, 0 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

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ZIC3	NM_003413.4	MANE Select	c.804C>A	p.Cys268*	stop_gained	Exon 1 of 3	NP_003404.1
	ZIC3	NM_001330661.1		c.804C>A	p.Cys268*	stop_gained	Exon 1 of 3	NP_001317590.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ZIC3	ENST00000287538.10	TSL:1 MANE Select	c.804C>A	p.Cys268*	stop_gained	Exon 1 of 3	ENSP00000287538.5
	ZIC3	ENST00000370606.3	TSL:5	c.804C>A	p.Cys268*	stop_gained	Exon 1 of 3	ENSP00000359638.3
	LINC02931	ENST00000786828.1		n.130+1579G>T		intron	N/A

Frequencies

GnomAD3 genomes Cov.: 25

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 25

Alfa AF: 0.00 Hom.: 0

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

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

Nov 01, 1997

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.74	D
BayesDel_noAF	Pathogenic	0.47
CADD	Pathogenic	37
DANN	Uncertain	0.99
FATHMM_MKL	Uncertain	0.77	D
PhyloP100		1.8
Vest4		0.91
GERP RS		1.9
Mutation Taster		=1/199	disease causing (ClinVar)

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

dbSNP: rs122462166; hg19: chrX-136649654;