rs17182166

chr2-157739685-G-T

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_Moderate BA1

The NM_001111067.4(ACVR1):c.1265-1115C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.157 in 152,104 control chromosomes in the GnomAD database, including 1,943 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 0.16 (1943 hom., cov: 32)
• Consequence: ACVR1 NM_001111067.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0470

Genes affected

ACVR1 (HGNC:171): (activin A receptor type 1) Activins are dimeric growth and differentiation factors which belong to the transforming growth factor-beta (TGF-beta) superfamily of structurally related signaling proteins. Activins signal through a heteromeric complex of receptor serine kinases which include at least two type I ( I and IB) and two type II (II and IIB) receptors. These receptors are all transmembrane proteins, composed of a ligand-binding extracellular domain with cysteine-rich region, a transmembrane domain, and a cytoplasmic domain with predicted serine/threonine specificity. Type I receptors are essential for signaling; and type II receptors are required for binding ligands and for expression of type I receptors. Type I and II receptors form a stable complex after ligand binding, resulting in phosphorylation of type I receptors by type II receptors. This gene encodes activin A type I receptor which signals a particular transcriptional response in concert with activin type II receptors. Mutations in this gene are associated with fibrodysplasia ossificans progressive. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -10 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.33).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.199 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ACVR1	NM_001111067.4	c.1265-1115C>A		intron_variant		ENST00000434821.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ACVR1	ENST00000434821.7	c.1265-1115C>A		intron_variant		1	NM_001111067.4	P4

Frequencies

GnomAD3 genomes AF: 0.157 AC: 23788 AN: 151986 Hom.: 1944 Cov.: 32

Gnomad AFR AF: 0.203

Gnomad AMI AF: 0.170

Gnomad AMR AF: 0.0964

Gnomad ASJ AF: 0.221

Gnomad EAS AF: 0.0507

Gnomad SAS AF: 0.0878

Gnomad FIN AF: 0.117

Gnomad MID AF: 0.114

Gnomad NFE AF: 0.158

Gnomad OTH AF: 0.162

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

GnomAD4 genome AF: 0.157 AC: 23811 AN: 152104 Hom.: 1943 Cov.: 32 AF XY: 0.150 AC XY: 11178 AN XY: 74364

Gnomad4 AFR AF: 0.203

Gnomad4 AMR AF: 0.0962

Gnomad4 ASJ AF: 0.221

Gnomad4 EAS AF: 0.0508

Gnomad4 SAS AF: 0.0872

Gnomad4 FIN AF: 0.117

Gnomad4 NFE AF: 0.158

Gnomad4 OTH AF: 0.161

Alfa AF: 0.153 Hom.: 2506

Bravo AF: 0.162

Asia WGS AF: 0.0800 AC: 279 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.33
Cadd	Benign	14
Dann	Benign	0.80

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: rs17182166; hg19: chr2-158596197;