rs778246270

Positions:

• chr2-144399761-T-G

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 3P and 6B. PM2 PP2 BP4_Moderate BS2

The NM_014795.4(ZEB2):​c.1426A>C​(p.Met476Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000342 in 1,461,556 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000034 (0 hom.)
• Consequence: ZEB2 NM_014795.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.89

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 Likely_benign. 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.
• BP4: Computational evidence support a benign effect (MetaRNN=0.19389522).
• BS2: High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ZEB2	NM_014795.4	c.1426A>C	p.Met476Leu	missense_variant	8/10	ENST00000627532.3	NP_055610.1
ZEB2	NM_001171653.2	c.1354A>C	p.Met452Leu	missense_variant	7/9		NP_001165124.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ZEB2	ENST00000627532.3	c.1426A>C	p.Met476Leu	missense_variant	8/10	1	NM_014795.4	ENSP00000487174	P4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.0000199 AC: 5 AN: 250910 Hom.: 0 AF XY: 0.0000221 AC XY: 3 AN XY: 135622

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000145

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

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: 0.00000342 AC: 5 AN: 1461556 Hom.: 0 Cov.: 32 AF XY: 0.00000275 AC XY: 2 AN XY: 727076

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.000112

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000756

ExAC AF: 0.0000165 AC: 2

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 02, 2023

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. ClinVar contains an entry for this variant (Variation ID: 534642). This variant has not been reported in the literature in individuals affected with ZEB2-related conditions. This variant is present in population databases (rs778246270, gnomAD 0.01%). This sequence change replaces methionine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 476 of the ZEB2 protein (p.Met476Leu). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Benign	-0.19	T
BayesDel_noAF	Benign	-0.26
CADD	Benign	20
DANN	Benign	0.51
DEOGEN2	Benign	0.0029	T;T;T;T;T;.;T;T;T;T;.;T;T;T;.
Eigen	Benign	-0.33
Eigen_PC	Benign	-0.10
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Uncertain	0.93	.;.;.;.;D;D;D;.;.;D;D;D;D;D;D
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.19	T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM	Benign	-0.84	T
MutationAssessor	Benign	1.4	.;.;.;.;.;.;.;L;L;.;.;L;.;.;.
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Pathogenic	0.79	T
PROVEAN	Benign	-0.30	.;.;.;.;.;.;.;.;N;.;N;N;.;.;.
REVEL	Benign	0.23
Sift	Benign	1.0	.;.;.;.;.;.;.;.;T;.;T;T;.;.;.
Sift4G	Benign	1.0	.;.;.;.;.;.;.;T;T;.;T;T;T;.;.
Polyphen		0.0010, 0.0	.;.;.;.;.;.;.;B;B;.;.;B;B;.;.
Vest4		0.44, 0.46, 0.46, 0.43, 0.44
MutPred		0.64		.;.;.;.;.;.;.;Gain of methylation at K475 (P = 0.0669);Gain of methylation at K475 (P = 0.0669);Gain of methylation at K475 (P = 0.0669);.;Gain of methylation at K475 (P = 0.0669);.;.;Gain of methylation at K475 (P = 0.0669);
MVP		0.37
MPC		0.66
ClinPred		0.077	T
GERP RS		4.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.23
gMVP		0.52

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

LitVar

Other links and lift over

dbSNP: rs778246270; hg19: chr2-145157328;