chr2-144398318-G-A

Position:

• chr2-144398318-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP2

The ENST00000627532.3(ZEB2):​c.2869C>T​(p.Arg957Trp) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,506 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R957Q) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: ZEB2 ENST00000627532.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.93

Genes affected

ZEB2 (HGNC:14881): (zinc finger E-box binding homeobox 2) The protein encoded by this gene is a member of the Zfh1 family of 2-handed zinc finger/homeodomain proteins. It is located in the nucleus and functions as a DNA-binding transcriptional repressor that interacts with activated SMADs. Mutations in this gene are associated with Hirschsprung disease/Mowat-Wilson syndrome. Alternatively spliced transcript variants have been found for this gene.[provided by RefSeq, Jan 2010]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), ZEB2. . Gene score misZ 3.9433 (greater than the threshold 3.09). Trascript score misZ 5.6227 (greater than threshold 3.09). GenCC has associacion of gene with Mowat-Wilson syndrome.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ZEB2	NM_014795.4	c.2869C>T	p.Arg957Trp	missense_variant	8/10	ENST00000627532.3	NP_055610.1
ZEB2	NM_001171653.2	c.2797C>T	p.Arg933Trp	missense_variant	7/9		NP_001165124.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ZEB2	ENST00000627532.3	c.2869C>T	p.Arg957Trp	missense_variant	8/10	1	NM_014795.4	ENSP00000487174	P4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000398 AC: 1 AN: 251372 Hom.: 0 AF XY: 0.00000736 AC XY: 1 AN XY: 135864

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000544

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461506 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 727056

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Mowat-Wilson syndrome Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 04, 2023

ClinVar contains an entry for this variant (Variation ID: 466283). This variant has not been reported in the literature in individuals affected with ZEB2-related conditions. This variant is present in population databases (no rsID available, gnomAD 0.006%). This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 957 of the ZEB2 protein (p.Arg957Trp). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Advanced modeling performed at Invitae incorporating data from internal and/or published experimental studies (Invitae) indicates that this missense variant is not expected to disrupt ZEB2 function. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.76
BayesDel_addAF	Benign	-0.039	T
BayesDel_noAF	Benign	-0.12
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Benign	0.17	T;T;T;T;T;.;T;D;D;T;.;.;D;T
Eigen	Uncertain	0.54
Eigen_PC	Uncertain	0.51
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Uncertain	0.93	.;.;.;.;D;D;D;.;.;D;D;D;D;D
M_CAP	Benign	0.063	D
MetaRNN	Uncertain	0.54	D;D;D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.0	.;.;.;.;.;.;.;M;M;.;.;.;M;.
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Pathogenic	0.89	D
PROVEAN	Benign	-2.2	.;.;.;.;.;.;.;.;N;.;.;N;N;.
REVEL	Uncertain	0.30
Sift	Uncertain	0.0020	.;.;.;.;.;.;.;.;D;.;.;D;D;.
Sift4G	Uncertain	0.052	.;.;.;.;.;.;.;T;T;.;.;T;T;T
Polyphen		1.0	.;.;.;.;.;.;.;D;D;.;.;.;D;D
Vest4		0.82, 0.80, 0.83, 0.77, 0.81
MutPred		0.46		.;.;.;.;.;.;.;Loss of disorder (P = 0.0065);Loss of disorder (P = 0.0065);Loss of disorder (P = 0.0065);.;.;Loss of disorder (P = 0.0065);.;
MVP		0.25
MPC		2.5
ClinPred		0.85	D
GERP RS		4.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.29
gMVP		0.75

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs1354236085; hg19: chr2-145155885; COSMIC: COSV57955107; COSMIC: COSV57955107;