rs563686436

Variant names:

• chr12-51912411-C-A
• rs563686436
• ENST00000550683.5:c.-22C>A

Your query was ambiguous. Multiple possible variants found:

• chr12-51912411-C-A
• chr12-51912411-C-T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001077401.2(ACVRL1):​c.-64C>A variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000007 in 1,429,048 control chromosomes in the GnomAD database, with no homozygous occurrence. 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: not found (cov: 32)
  • Exomes 𝑓: 7.0e-7 (0 hom.)
• Consequence: ACVRL1 NM_001077401.2 5_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.56
• Publications: 0 publications found

Genes affected

ACVRL1 (HGNC:175): (activin A receptor like type 1) This gene encodes a type I cell-surface receptor for the TGF-beta superfamily of ligands. It shares with other type I receptors a high degree of similarity in serine-threonine kinase subdomains, a glycine- and serine-rich region (called the GS domain) preceding the kinase domain, and a short C-terminal tail. The encoded protein, sometimes termed ALK1, shares similar domain structures with other closely related ALK or activin receptor-like kinase proteins that form a subfamily of receptor serine/threonine kinases. Mutations in this gene are associated with hemorrhagic telangiectasia type 2, also known as Rendu-Osler-Weber syndrome 2. [provided by RefSeq, Jul 2008]

ACVRL1 Gene-Disease associations (from GenCC):

• telangiectasia, hereditary hemorrhagic, type 2

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, ClinGen, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
• hereditary hemorrhagic telangiectasia

  Inheritance: AR, AD Classification: SUPPORTIVE, LIMITED Submitted by: Ambry Genetics, Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.78).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001077401.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ACVRL1	NM_000020.3	MANE Select	c.-5-59C>A		intron	N/A	NP_000011.2	P37023
	ACVRL1	NM_001077401.2		c.-64C>A		5_prime_UTR	Exon 1 of 9	NP_001070869.1	A0A0S2Z310
	ACVRL1	NM_001406489.1		c.-64C>A		5_prime_UTR	Exon 1 of 8	NP_001393418.1	H3BTZ2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ACVRL1	ENST00000550683.5	TSL:1	c.-22C>A		5_prime_UTR	Exon 1 of 9	ENSP00000447884.1	G3V1W8
	ACVRL1	ENST00000388922.9	TSL:1 MANE Select	c.-5-59C>A		intron	N/A	ENSP00000373574.4	P37023
	ACVRL1	ENST00000551576.6	TSL:1	c.-5-59C>A		intron	N/A	ENSP00000455848.2	P37023

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 7.00e-7 AC: 1 AN: 1429048 Hom.: 0 Cov.: 29 AF XY: 0.00000140 AC XY: 1 AN XY: 712766

African (AFR) AF: 0.00 AC: 0 AN: 32750

American (AMR) AF: 0.00 AC: 0 AN: 44476

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25894

East Asian (EAS) AF: 0.00 AC: 0 AN: 39528

South Asian (SAS) AF: 0.00 AC: 0 AN: 85192

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53220

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5706

European-Non Finnish (NFE) AF: 9.23e-7 AC: 1 AN: 1083028

Other (OTH) AF: 0.00 AC: 0 AN: 59254

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.78
CADD	Benign	1.0
DANN	Benign	0.55
PhyloP100		-1.6
PromoterAI		-0.090	Neutral

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

Other links and lift over

dbSNP: rs563686436; hg19: chr12-52306195;