rs929939

Variant names:

• chr2-147869959-C-A
• rs929939
• NM_001616.5:c.55+24752C>A

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001616.5(ACVR2A):​c.55+24752C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.33 in 151,220 control chromosomes in the GnomAD database, including 8,474 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.33 (8474 hom., cov: 29)
• Consequence: ACVR2A NM_001616.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0670

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]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.507 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ACVR2A	NM_001616.5	c.55+24752C>A		intron_variant	Intron 1 of 10	ENST00000241416.12	NP_001607.1
ACVR2A	NM_001278579.2	c.55+24752C>A		intron_variant	Intron 2 of 11		NP_001265508.1
ACVR2A	NM_001278580.2	c.-207+25253C>A		intron_variant	Intron 1 of 10		NP_001265509.1
ACVR2A	XM_047446292.1	c.-270+25253C>A		intron_variant	Intron 1 of 10		XP_047302248.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ACVR2A	ENST00000241416.12	c.55+24752C>A		intron_variant	Intron 1 of 10	1	NM_001616.5	ENSP00000241416.7

Frequencies

GnomAD3 genomes AF: 0.330 AC: 49872 AN: 151100 Hom.: 8469 Cov.: 29

Gnomad AFR AF: 0.303

Gnomad AMI AF: 0.272

Gnomad AMR AF: 0.385

Gnomad ASJ AF: 0.329

Gnomad EAS AF: 0.524

Gnomad SAS AF: 0.322

Gnomad FIN AF: 0.339

Gnomad MID AF: 0.423

Gnomad NFE AF: 0.319

Gnomad OTH AF: 0.354

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.330 AC: 49920 AN: 151220 Hom.: 8474 Cov.: 29 AF XY: 0.332 AC XY: 24488 AN XY: 73810

Gnomad4 AFR AF: 0.303

Gnomad4 AMR AF: 0.385

Gnomad4 ASJ AF: 0.329

Gnomad4 EAS AF: 0.523

Gnomad4 SAS AF: 0.322

Gnomad4 FIN AF: 0.339

Gnomad4 NFE AF: 0.319

Gnomad4 OTH AF: 0.353

Alfa AF: 0.324 Hom.: 1286

Bravo AF: 0.337

Asia WGS AF: 0.361 AC: 1257 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	1.9
DANN	Benign	0.35

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: rs929939; hg19: chr2-148627528; COSMIC: COSV54021637;