NM_001258315.2:c.801A>T

Variant summary

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

The NM_001258315.2(ECT2):​c.801A>T​(p.Lys267Asn) variant causes a missense 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 Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Consequence

ECT2
NM_001258315.2 missense

Scores

3
13
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.72
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]

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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 rank MANE Protein UniProt
ECT2NM_001258315.2 linkc.801A>T p.Lys267Asn missense_variant Exon 9 of 25 ENST00000392692.8 NP_001245244.1 Q9H8V3-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ECT2ENST00000392692.8 linkc.801A>T p.Lys267Asn missense_variant Exon 9 of 25 1 NM_001258315.2 ENSP00000376457.3 Q9H8V3-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
32
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Aug 05, 2024
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.708A>T (p.K236N) alteration is located in exon 8 (coding exon 7) of the ECT2 gene. This alteration results from a A to T substitution at nucleotide position 708, causing the lysine (K) at amino acid position 236 to be replaced by an asparagine (N). 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
Pathogenic
0.94
BayesDel_addAF
Uncertain
0.071
D
BayesDel_noAF
Benign
-0.14
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.57
.;.;D;.;.
Eigen
Pathogenic
0.70
Eigen_PC
Pathogenic
0.67
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.97
.;D;D;D;.
M_CAP
Benign
0.064
D
MetaRNN
Uncertain
0.47
T;T;T;T;T
MetaSVM
Uncertain
0.38
D
MutationAssessor
Uncertain
2.9
.;.;M;.;.
PrimateAI
Uncertain
0.66
T
PROVEAN
Uncertain
-2.9
D;.;D;D;D
REVEL
Uncertain
0.63
Sift
Uncertain
0.0060
D;.;D;D;D
Sift4G
Uncertain
0.016
D;D;D;D;D
Polyphen
1.0
.;.;D;D;.
Vest4
0.51
MutPred
0.55
Loss of methylation at K236 (P = 6e-04);Loss of methylation at K236 (P = 6e-04);.;.;Loss of methylation at K236 (P = 6e-04);
MVP
0.89
MPC
1.1
ClinPred
0.99
D
GERP RS
5.8
Varity_R
0.62
gMVP
0.76

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.21
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.21
Position offset: 17

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr3-172480248; API