2-147920262-A-C

Position:

chr2-147920262-A-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001616.5(ACVR2A):c.995A>C(p.Asn332Thr) 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 1,461,274 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: 0.0000014 ( 0 hom. )

Consequence

ACVR2A
NM_001616.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.05

Variant links:

Genes affected

ACVR2A (HGNC:173): (activin A receptor type 2A) This gene encodes a receptor that mediates the functions of activins, which are members of the transforming growth factor-beta (TGF-beta) superfamily involved in diverse biological processes. The encoded protein is a transmembrane serine-threonine kinase receptor which mediates signaling by forming heterodimeric complexes with various combinations of type I and type II receptors and ligands in a cell-specific manner. The encoded type II receptor is primarily involved in ligand-binding and includes an extracellular ligand-binding domain, a transmembrane domain and a cytoplasmic serine-threonine kinase domain. This gene may be associated with susceptibility to preeclampsia, a pregnancy-related disease which can result in maternal and fetal morbidity and mortality. Alternative splicing results in multiple transcript variants of this gene. [provided by RefSeq, Jun 2013]

ACVR2A links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.22490671).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
ACVR2A	NM_001616.5 linkuse as main transcript	c.995A>C	p.Asn332Thr	missense_variant	8/11	ENST00000241416.12
ACVR2A	NM_001278579.2 linkuse as main transcript	c.995A>C	p.Asn332Thr	missense_variant	9/12
ACVR2A	NM_001278580.2 linkuse as main transcript	c.671A>C	p.Asn224Thr	missense_variant	8/11
ACVR2A	XM_047446292.1 linkuse as main transcript	c.671A>C	p.Asn224Thr	missense_variant	8/11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ACVR2A	ENST00000241416.12 linkuse as main transcript	c.995A>C	p.Asn332Thr	missense_variant	8/11	1	NM_001616.5	P1	P27037-1
ACVR2A	ENST00000404590.1 linkuse as main transcript	c.995A>C	p.Asn332Thr	missense_variant	9/12	1		P1	P27037-1
ACVR2A	ENST00000535787.5 linkuse as main transcript	c.671A>C	p.Asn224Thr	missense_variant	8/11	2			P27037-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000399

AC:

AN:

250554

Hom.:

AF XY:

0.00000739

AC XY:

AN XY:

135406

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.00000884

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461274

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

726922

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.000111

Hom.:

EpiCase

AF:

0.0000546

EpiControl

AF:

0.00

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 05, 2022

The c.995A>C (p.N332T) alteration is located in exon 8 (coding exon 8) of the ACVR2A gene. This alteration results from a A to C substitution at nucleotide position 995, causing the asparagine (N) at amino acid position 332 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

0.094

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.40

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.24

T;.;T

Eigen

Benign

-0.11

Eigen_PC

Benign

0.077

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.87

.;D;D

M_CAP

Benign

0.015

MetaRNN

Benign

0.22

T;T;T

MetaSVM

Benign

-0.89

MutationAssessor

Benign

1.2

L;.;L

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.78

PROVEAN

Benign

-2.2

N;N;N

REVEL

Benign

0.098

Sift

Benign

0.31

T;T;T

Sift4G

Benign

0.41

T;T;T

Polyphen

0.0

B;.;B

Vest4

0.30

MutPred

0.51

Loss of stability (P = 0.0973);.;Loss of stability (P = 0.0973);

MVP

0.43

MPC

0.79

ClinPred

0.39

GERP RS

5.4

Varity_R

0.35

gMVP

0.71

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