Variant 3-172759014-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001258315.2(ECT2):c.521C>T(p.Thr174Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,459,292 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

ECT2
NM_001258315.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.91

Variant links:

Genes affected

ECT2 (HGNC:3155): (epithelial cell transforming 2) The protein encoded by this gene is a guanine nucleotide exchange factor and transforming protein that is related to Rho-specific exchange factors and yeast cell cycle regulators. The expression of this gene is elevated with the onset of DNA synthesis and remains elevated during G2 and M phases. In situ hybridization analysis showed that expression is at a high level in cells undergoing mitosis in regenerating liver. Thus, this protein is expressed in a cell cycle-dependent manner during liver regeneration, and is thought to have an important role in the regulation of cytokinesis. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2017]

ECT2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ECT2	NM_001258315.2 linkuse as main transcript	c.521C>T	p.Thr174Ile	missense_variant	6/25	ENST00000392692.8	NP_001245244.1	Q9H8V3-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ECT2	ENST00000392692.8 linkuse as main transcript	c.521C>T	p.Thr174Ile	missense_variant	6/25	1	NM_001258315.2	ENSP00000376457.3		Q9H8V3-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000402

AC:

AN:

249046

Hom.:

AF XY:

0.00

AC XY:

AN XY:

134606

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000296

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:

0.00000137

AC:

AN:

1459292

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

725836

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000454

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.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 31, 2022

The c.428C>T (p.T143I) alteration is located in exon 5 (coding exon 4) of the ECT2 gene. This alteration results from a C to T substitution at nucleotide position 428, causing the threonine (T) at amino acid position 143 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.20

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.38

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.10

.;.;T;.;.;T;.

Eigen

Benign

0.012

Eigen_PC

Benign

0.17

FATHMM_MKL

Uncertain

0.89

LIST_S2

Uncertain

0.97

.;D;D;D;D;D;.

M_CAP

Benign

0.013

MetaRNN

Benign

0.24

T;T;T;T;T;T;T

MetaSVM

Benign

-0.84

MutationAssessor

Benign

1.7

.;.;L;.;.;.;.

PrimateAI

Uncertain

0.54

PROVEAN

Benign

-1.3

N;.;N;N;N;N;N

REVEL

Benign

0.049

Sift

Benign

0.42

T;.;T;T;T;T;T

Sift4G

Benign

0.42

T;T;T;T;T;D;T

Polyphen

0.014, 0.0070

.;.;B;B;.;.;.

Vest4

0.60

MutPred

0.60

Gain of catalytic residue at L148 (P = 0.0407);Gain of catalytic residue at L148 (P = 0.0407);.;.;.;Gain of catalytic residue at L148 (P = 0.0407);Gain of catalytic residue at L148 (P = 0.0407);

MVP

0.74

MPC

0.58

ClinPred

0.32

GERP RS

4.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.16

gMVP

0.46

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.37

Details are displayed if max score is > 0.2

DS_AL_spliceai

0.37

Position offset: -34

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over