rs762723557

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2PP2PP3_Moderate

The NM_004302.5(ACVR1B):​c.1144G>A​(p.Ala382Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000435 in 1,610,468 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/22 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

ACVR1B
NM_004302.5 missense

Scores

13
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 10.0

Publications

2 publications found
Variant links:
Genes affected
ACVR1B (HGNC:172): (activin A receptor type 1B) This gene encodes an activin A type IB receptor. 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 and two type II receptors. This protein is a type I receptor which is essential for signaling. Mutations in this gene are associated with pituitary tumors. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Jun 2010]
ACVR1B Gene-Disease associations (from GenCC):
  • malignant pancreatic neoplasm
    Inheritance: Unknown Classification: NO_KNOWN Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 1 curated pathogenic missense variants (we use a threshold of 10). The gene has 0 curated benign missense variants. Gene score misZ: 3.3735 (above the threshold of 3.09). Trascript score misZ: 4.5396 (above the threshold of 3.09). GenCC associations: The gene is linked to malignant pancreatic neoplasm.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.935

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004302.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ACVR1B
NM_004302.5
MANE Select
c.1144G>Ap.Ala382Thr
missense
Exon 7 of 9NP_004293.1P36896-1
ACVR1B
NM_020328.4
c.1267G>Ap.Ala423Thr
missense
Exon 8 of 10NP_064733.3
ACVR1B
NM_001412774.1
c.1264G>Ap.Ala422Thr
missense
Exon 8 of 10NP_001399703.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ACVR1B
ENST00000257963.9
TSL:1 MANE Select
c.1144G>Ap.Ala382Thr
missense
Exon 7 of 9ENSP00000257963.4P36896-1
ACVR1B
ENST00000541224.5
TSL:2
c.1267G>Ap.Ala423Thr
missense
Exon 8 of 10ENSP00000442656.1P36896-4
ACVR1B
ENST00000900350.1
c.1264G>Ap.Ala422Thr
missense
Exon 8 of 10ENSP00000570409.1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152178
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000799
AC:
2
AN:
250304
AF XY:
0.00
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000177
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000411
AC:
6
AN:
1458290
Hom.:
0
Cov.:
31
AF XY:
0.00000276
AC XY:
2
AN XY:
724950
show subpopulations
African (AFR)
AF:
0.0000300
AC:
1
AN:
33284
American (AMR)
AF:
0.00
AC:
0
AN:
44440
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26054
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39644
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86024
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53294
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5758
European-Non Finnish (NFE)
AF:
0.00000451
AC:
5
AN:
1109530
Other (OTH)
AF:
0.00
AC:
0
AN:
60262
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152178
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74332
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41446
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68022
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1

ClinVar

ClinVar submissions as Germline
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.99
BayesDel_addAF
Pathogenic
0.58
D
BayesDel_noAF
Pathogenic
0.61
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.52
D
Eigen
Pathogenic
1.1
Eigen_PC
Pathogenic
1.0
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.96
D
M_CAP
Pathogenic
0.37
D
MetaRNN
Pathogenic
0.94
D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
4.2
H
PhyloP100
10
PrimateAI
Pathogenic
0.89
D
PROVEAN
Uncertain
-3.7
D
REVEL
Pathogenic
0.95
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.0050
D
Polyphen
1.0
D
Vest4
0.97
MutPred
0.79
Gain of catalytic residue at T377 (P = 0.0075)
MVP
0.99
MPC
2.1
ClinPred
1.0
D
GERP RS
5.0
Varity_R
0.75
gMVP
0.95
Mutation Taster
=5/95
disease causing

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

Other links and lift over

dbSNP: rs762723557; hg19: chr12-52380609; COSMIC: COSV57781675; COSMIC: COSV57781675; API