chrX-64919152-TG-T

Variant names:

• chrX-64919152-TG-T
• rs1555933851
• NM_018684.4:c.450delC

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PVS1 PM2 PP5_Moderate

The NM_018684.4(ZC4H2):​c.450delC​(p.Ile151SerfsTer36) 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 Pathogenic (★). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 23)
• Consequence: ZC4H2 NM_018684.4 frameshift
• Clinical Significance: Pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 0.208
• Publications: 0 publications found

Genes affected

ZC4H2 (HGNC:24931): (zinc finger C4H2-type containing) This gene encodes a member of the zinc finger domain-containing protein family. This family member has a C-terminal zinc finger domain that is characterized by four cysteine residues and two histidine residues, and it also includes a coiled-coil region. This protein has been detected as an autoantigen in hepatocellular carcinoma patients. This gene has been identified as a potential candidate for X-linked cognitive disability. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2011]

ZC4H2 Gene-Disease associations (from GenCC):

• Wieacker-Wolff syndrome

  Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics
• Wieacker-Wolff syndrome, female-restricted

  Inheritance: XL Classification: DEFINITIVE Submitted by: Ambry Genetics, G2P
• X-linked syndromic intellectual disability

  Inheritance: XL Classification: DEFINITIVE Submitted by: ClinGen

ACMG classification

Our verdict: Pathogenic. The variant received 12 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-64919152-TG-T is Pathogenic according to our data. Variant chrX-64919152-TG-T is described in ClinVar as Pathogenic. ClinVar VariationId is 1691750.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018684.4. 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
	ZC4H2	NM_018684.4	MANE Select	c.450delC	p.Ile151SerfsTer36	frameshift	Exon 4 of 5	NP_061154.1	Q9NQZ6-1
	ZC4H2	NM_001178032.3		c.381delC	p.Ile128SerfsTer36	frameshift	Exon 4 of 5	NP_001171503.1	Q9NQZ6-3
	ZC4H2	NM_001243804.2		c.381delC	p.Ile128SerfsTer36	frameshift	Exon 4 of 5	NP_001230733.1	Q9NQZ6-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ZC4H2	ENST00000374839.8	TSL:1 MANE Select	c.450delC	p.Ile151SerfsTer36	frameshift	Exon 4 of 5	ENSP00000363972.3	Q9NQZ6-1
	ZC4H2	ENST00000337990.2	TSL:2	c.381delC	p.Ile128SerfsTer36	frameshift	Exon 4 of 5	ENSP00000338650.2	Q9NQZ6-3
	ZC4H2	ENST00000476032.2	TSL:3	c.381delC	p.Ile128SerfsTer36	frameshift	Exon 4 of 5	ENSP00000515193.1	A0A8V8TR70

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 23

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
1	-	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		0.21
Mutation Taster		=5/195	disease causing

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: rs1555933851; hg19: chrX-64139032;