Variant 1-39492215-T-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_181809.4(BMP8A):c.224T>G(p.Leu75Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000271 in 1,475,348 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

BMP8A
NM_181809.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.66

Variant links:

Genes affected

BMP8A (HGNC:21650): (bone morphogenetic protein 8a) 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. This protein may play a role in development of the reproductive system. 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]

BMP8A links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
BMP8A	NM_181809.4 linkuse as main transcript	c.224T>G	p.Leu75Arg	missense_variant	1/7	ENST00000331593.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
BMP8A	ENST00000331593.6 linkuse as main transcript	c.224T>G	p.Leu75Arg	missense_variant	1/7	1	NM_181809.4	P1

Frequencies

GnomAD3 genomes

AF:

0.0000462

AC:

AN:

151650

Hom.:

Cov.:

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:

0.0000884

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.0000416

AC:

AN:

120142

Hom.:

AF XY:

0.0000281

AC XY:

AN XY:

71072

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000840

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000249

AC:

AN:

1323590

Hom.:

Cov.:

AF XY:

0.0000274

AC XY:

AN XY:

657168

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:

0.0000265

Gnomad4 OTH exome

AF:

0.0000741

GnomAD4 genome

AF:

0.0000461

AC:

AN:

151758

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74166

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000884

Gnomad4 OTH

AF:

0.000474

Alfa

AF:

0.000143

Hom.:

Bravo

AF:

0.0000302

ExAC

AF:

0.0000275

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

Jan 16, 2024

The c.224T>G (p.L75R) alteration is located in exon 1 (coding exon 1) of the BMP8A gene. This alteration results from a T to G substitution at nucleotide position 224, causing the leucine (L) at amino acid position 75 to be replaced by an arginine (R). 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

0.073

BayesDel_addAF

Benign

-0.086

BayesDel_noAF

Benign

-0.22

Cadd

Uncertain

Dann

Uncertain

0.99

DEOGEN2

Benign

0.32

Eigen

Uncertain

0.39

Eigen_PC

Uncertain

0.29

FATHMM_MKL

Uncertain

0.83

LIST_S2

Benign

0.84

M_CAP

Pathogenic

0.41

MetaRNN

Uncertain

0.51

MetaSVM

Uncertain

-0.24

MutationAssessor

Pathogenic

2.9

MutationTaster

Benign

1.0

PrimateAI

Pathogenic

0.94

PROVEAN

Uncertain

-4.0

REVEL

Uncertain

0.49

Sift

Benign

0.16

Sift4G

Benign

0.45

Polyphen

1.0

Vest4

0.22

MutPred

0.59

Gain of MoRF binding (P = 0.016);

MVP

0.79

MPC

3.4

ClinPred

0.66

GERP RS

3.4

Varity_R

0.77

gMVP

0.56

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