Variant chr1-39764640-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001720.5(BMP8B):c.851G>A(p.Arg284Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. 16/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 30)

Exomes 𝑓: 0.00010 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

BMP8B
NM_001720.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.639

Variant links:

Genes affected

BMP8B (HGNC:1075): (bone morphogenetic protein 8b) This gene encodes a secreted ligand of the TGF-beta (transforming growth factor-beta) superfamily of proteins. Ligands of this family bind various TGF-beta receptors leading to recruitment and activation of SMAD family transcription factors that regulate gene expression. The encoded preproprotein is proteolytically processed to generate each subunit of the disulfide-linked homodimer. The encoded protein stimulates thermogenesis in brown adipose tissue. Expression of this gene may be downregulated in pancreatic cancer. This gene may have arose from a gene duplication event and its gene duplicate is also present on chromosome 1. [provided by RefSeq, Jul 2016]

BMP8B links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.060333878).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BMP8B	NM_001720.5 linkuse as main transcript	c.851G>A	p.Arg284Gln	missense_variant	4/7	ENST00000372827.8	NP_001711.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BMP8B	ENST00000372827.8 linkuse as main transcript	c.851G>A	p.Arg284Gln	missense_variant	4/7	1	NM_001720.5	ENSP00000361915	P1	P34820-1

Frequencies

GnomAD3 genomes

AF:

0.0000527

AC:

AN:

151886

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00633

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000197

AC:

AN:

249006

Hom.:

AF XY:

0.000267

AC XY:

AN XY:

135002

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000290

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000218

Gnomad SAS exome

AF:

0.00105

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000891

Gnomad OTH exome

AF:

0.000331

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.000103

AC:

150

AN:

1461302

Hom.:

Cov.:

AF XY:

0.000147

AC XY:

107

AN XY:

726974

show subpopulations

Gnomad4 AFR exome

AF:

0.0000598

Gnomad4 AMR exome

AF:

0.0000671

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.000951

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000369

Gnomad4 OTH exome

AF:

0.000232

GnomAD4 genome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000526

AC:

AN:

152004

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74344

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.000208

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000144

Hom.:

ExAC

AF:

0.000214

AC:

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

Nov 12, 2021

The c.851G>A (p.R284Q) alteration is located in exon 4 (coding exon 4) of the BMP8B gene. This alteration results from a G to A substitution at nucleotide position 851, causing the arginine (R) at amino acid position 284 to be replaced by a glutamine (Q). 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

0.089

BayesDel_addAF

Benign

-0.49

BayesDel_noAF

Benign

-0.52

CADD

Benign

9.9

DANN

Benign

0.97

DEOGEN2

Uncertain

0.43

Eigen

Benign

-0.83

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.0073

LIST_S2

Uncertain

0.90

M_CAP

Benign

0.045

MetaRNN

Benign

0.060

MetaSVM

Benign

-0.68

MutationAssessor

Benign

1.9

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.39

PROVEAN

Benign

-1.8

REVEL

Benign

0.17

Sift

Benign

0.092

Sift4G

Benign

0.32

Polyphen

0.88

Vest4

0.20

MutPred

0.40

Loss of catalytic residue at R284 (P = 0.0468);

MVP

0.64

ClinPred

0.050

GERP RS

-3.7

Varity_R

0.051

gMVP

0.43

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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