Variant 12-51951789-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 1P and 5B. PP2BP4BS2

The ENST00000257963.9(ACVR1B):c.46C>T(p.Leu16Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000122 in 1,145,944 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

ACVR1B
ENST00000257963.9 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.634

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 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), ACVR1B. . Gene score misZ 3.3735 (greater than the threshold 3.09). Trascript score misZ 4.5396 (greater than threshold 3.09). GenCC has associacion of gene with malignant pancreatic neoplasm.

BP4

Computational evidence support a benign effect (MetaRNN=0.3544161).

BS2

High AC in GnomAdExome4 at 14 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ACVR1B	NM_004302.5 linkuse as main transcript	c.46C>T	p.Leu16Phe	missense_variant	1/9	ENST00000257963.9	NP_004293.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ACVR1B	ENST00000257963.9 linkuse as main transcript	c.46C>T	p.Leu16Phe	missense_variant	1/9	1	NM_004302.5	ENSP00000257963	P1	P36896-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.0000122

AC:

AN:

1145944

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

547606

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000148

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000843

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 21, 2023

The c.46C>T (p.L16F) alteration is located in exon 1 (coding exon 1) of the ACVR1B gene. This alteration results from a C to T substitution at nucleotide position 46, causing the leucine (L) at amino acid position 16 to be replaced by a phenylalanine (F). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.067

BayesDel_addAF

Uncertain

0.024

BayesDel_noAF

Benign

-0.20

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.39

T;.;.;.

Eigen

Benign

-0.19

Eigen_PC

Benign

-0.12

FATHMM_MKL

Benign

0.30

LIST_S2

Benign

0.54

T;T;T;T

M_CAP

Pathogenic

0.98

MetaRNN

Benign

0.35

T;T;T;T

MetaSVM

Uncertain

-0.18

MutationAssessor

Benign

0.0

N;N;N;N

MutationTaster

Benign

0.69

N;N;N;N

PrimateAI

Pathogenic

0.92

PROVEAN

Benign

-0.77

N;N;N;N

REVEL

Uncertain

0.32

Sift

Benign

0.24

T;T;T;T

Sift4G

Benign

0.087

T;T;T;D

Polyphen

0.81

P;P;P;D

Vest4

0.39

MVP

0.83

MPC

2.2

ClinPred

0.53

GERP RS

2.6

Varity_R

0.069

gMVP

0.57

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over