Genetic Variant ECT2L:p.Ala161Thr (chr6-138843117-G-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001077706.3(ECT2L):c.481G>A(p.Ala161Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,200 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Consequence

ECT2L
NM_001077706.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0190

Variant links:

Genes affected

ECT2L (HGNC:21118): (epithelial cell transforming 2 like) Predicted to enable guanyl-nucleotide exchange factor activity. Predicted to be involved in regulation of catalytic activity. [provided by Alliance of Genome Resources, Apr 2022]

ECT2L links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.065107316).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ECT2L	NM_001077706.3 link	c.481G>A	p.Ala161Thr	missense_variant	Exon 6 of 22	ENST00000541398.7	NP_001071174.1	Q008S8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ECT2L	ENST00000541398.7 link	c.481G>A	p.Ala161Thr	missense_variant	Exon 6 of 22	5	NM_001077706.3	ENSP00000442307.2		Q008S8
ECT2L	ENST00000367682.6 link	c.481G>A	p.Ala161Thr	missense_variant	Exon 5 of 21	5		ENSP00000356655.2		Q008S8

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152200

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152200

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74358

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

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

Aug 02, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.481G>A (p.A161T) alteration is located in exon 6 (coding exon 4) of the ECT2L gene. This alteration results from a G to A substitution at nucleotide position 481, causing the alanine (A) at amino acid position 161 to be replaced by a threonine (T). 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

0.086

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.57

CADD

Benign

9.1

DANN

Uncertain

0.98

DEOGEN2

Benign

0.0022

T;T;T

Eigen

Benign

-0.97

Eigen_PC

Benign

-0.94

FATHMM_MKL

Benign

0.059

LIST_S2

Benign

0.67

.;.;T

M_CAP

Benign

0.0099

MetaRNN

Benign

0.065

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.79

N;N;N

PrimateAI

Benign

0.29

PROVEAN

Benign

-0.86

N;N;.

REVEL

Benign

0.077

Sift

Benign

0.43

T;T;.

Sift4G

Benign

0.68

T;T;T

Polyphen

0.0040

B;B;B

Vest4

0.14

MutPred

0.64

Gain of phosphorylation at A161 (P = 0.0265);Gain of phosphorylation at A161 (P = 0.0265);Gain of phosphorylation at A161 (P = 0.0265);

MVP

0.32

MPC

0.084

ClinPred

0.060

GERP RS

-1.2

Varity_R

0.066

gMVP

0.39

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

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