12-51912437-C-T

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 1P and 20B. PP2BP4_StrongBP6_Very_StrongBA1

The ENST00000550683.5(ACVRL1):​c.5C>T​(p.Ala2Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.081 in 1,611,008 control chromosomes in the GnomAD database, including 5,581 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/13 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.077 ( 488 hom., cov: 32)
Exomes 𝑓: 0.081 ( 5093 hom. )

Consequence

ACVRL1
ENST00000550683.5 missense

Scores

2
13

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.272
Variant links:
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), ACVRL1. . Gene score misZ 2.4458 (greater than the threshold 3.09). Trascript score misZ 3.1363 (greater than threshold 3.09). GenCC has associacion of gene with hereditary hemorrhagic telangiectasia, telangiectasia, hereditary hemorrhagic, type 2.
BP4
Computational evidence support a benign effect (MetaRNN=0.0028590858).
BP6
Variant 12-51912437-C-T is Benign according to our data. Variant chr12-51912437-C-T is described in ClinVar as [Benign]. Clinvar id is 136292.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr12-51912437-C-T is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.0873 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ACVRL1NM_000020.3 linkuse as main transcriptc.-5-33C>T intron_variant ENST00000388922.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ACVRL1ENST00000388922.9 linkuse as main transcriptc.-5-33C>T intron_variant 1 NM_000020.3 P1

Frequencies

GnomAD3 genomes
AF:
0.0770
AC:
11709
AN:
152122
Hom.:
487
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0629
Gnomad AMI
AF:
0.0385
Gnomad AMR
AF:
0.0803
Gnomad ASJ
AF:
0.0943
Gnomad EAS
AF:
0.0942
Gnomad SAS
AF:
0.0540
Gnomad FIN
AF:
0.0955
Gnomad MID
AF:
0.0823
Gnomad NFE
AF:
0.0817
Gnomad OTH
AF:
0.0803
GnomAD3 exomes
AF:
0.0838
AC:
21002
AN:
250560
Hom.:
938
AF XY:
0.0823
AC XY:
11158
AN XY:
135504
show subpopulations
Gnomad AFR exome
AF:
0.0609
Gnomad AMR exome
AF:
0.0959
Gnomad ASJ exome
AF:
0.102
Gnomad EAS exome
AF:
0.0788
Gnomad SAS exome
AF:
0.0571
Gnomad FIN exome
AF:
0.103
Gnomad NFE exome
AF:
0.0862
Gnomad OTH exome
AF:
0.0825
GnomAD4 exome
AF:
0.0815
AC:
118853
AN:
1458768
Hom.:
5093
Cov.:
32
AF XY:
0.0808
AC XY:
58625
AN XY:
725826
show subpopulations
Gnomad4 AFR exome
AF:
0.0627
Gnomad4 AMR exome
AF:
0.0919
Gnomad4 ASJ exome
AF:
0.101
Gnomad4 EAS exome
AF:
0.118
Gnomad4 SAS exome
AF:
0.0595
Gnomad4 FIN exome
AF:
0.104
Gnomad4 NFE exome
AF:
0.0808
Gnomad4 OTH exome
AF:
0.0787
GnomAD4 genome
AF:
0.0769
AC:
11710
AN:
152240
Hom.:
488
Cov.:
32
AF XY:
0.0764
AC XY:
5687
AN XY:
74430
show subpopulations
Gnomad4 AFR
AF:
0.0628
Gnomad4 AMR
AF:
0.0802
Gnomad4 ASJ
AF:
0.0943
Gnomad4 EAS
AF:
0.0942
Gnomad4 SAS
AF:
0.0543
Gnomad4 FIN
AF:
0.0955
Gnomad4 NFE
AF:
0.0817
Gnomad4 OTH
AF:
0.0804
Alfa
AF:
0.0777
Hom.:
105
Bravo
AF:
0.0768
TwinsUK
AF:
0.0809
AC:
300
ALSPAC
AF:
0.0781
AC:
301
ESP6500AA
AF:
0.0608
AC:
268
ESP6500EA
AF:
0.0841
AC:
723
ExAC
AF:
0.0830
AC:
10074
Asia WGS
AF:
0.0830
AC:
290
AN:
3478
EpiCase
AF:
0.0872
EpiControl
AF:
0.0855

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Telangiectasia, hereditary hemorrhagic, type 2 Benign:2
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabDec 05, 2021- -
Benign, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesNov 29, 2023- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxOct 22, 2013This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.43
T
BayesDel_noAF
Benign
-0.25
CADD
Benign
3.3
DANN
Benign
0.88
DEOGEN2
Benign
0.0056
.;.;T
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.4
FATHMM_MKL
Benign
0.049
N
LIST_S2
Benign
0.40
T;T;T
MetaRNN
Benign
0.0029
T;T;T
MetaSVM
Benign
-0.78
T
MutationTaster
Benign
1.0
P;P;P
PROVEAN
Benign
-0.43
N;N;N
REVEL
Benign
0.18
Sift
Pathogenic
0.0
D;D;D
Sift4G
Pathogenic
0.0
.;D;T
Polyphen
0.0
.;.;B
Vest4
0.024, 0.094
ClinPred
0.0041
T
GERP RS
-6.7

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.

Other links and lift over

dbSNP: rs2277382; hg19: chr12-52306221; API