10-86919256-A-G

Position:

chr10-86919256-A-G

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 1P and 5B. PP2BP6BS2

The NM_004329.3(BMPR1A):c.953A>G(p.Tyr318Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000018 in 1,613,818 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

BMPR1A
NM_004329.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:9B:2O:1

Conservation

PhyloP100: 4.27

Variant links:

Genes affected

BMPR1A (HGNC:1076): (bone morphogenetic protein receptor type 1A) The bone morphogenetic protein (BMP) receptors are a family of transmembrane serine/threonine kinases that include the type I receptors BMPR1A and BMPR1B and the type II receptor BMPR2. These receptors are also closely related to the activin receptors, ACVR1 and ACVR2. The ligands of these receptors are members of the TGF-beta superfamily. TGF-betas and activins transduce their signals through the formation of heteromeric complexes with 2 different types of serine (threonine) kinase receptors: type I receptors of about 50-55 kD and type II receptors of about 70-80 kD. Type II receptors bind ligands in the absence of type I receptors, but they require their respective type I receptors for signaling, whereas type I receptors require their respective type II receptors for ligand binding. [provided by RefSeq, Jul 2008]

BMPR1A links:

BMPR1A (HGNC:):

BMPR1A 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), BMPR1A. . Gene score misZ 1.9176 (greater than the threshold 3.09). Trascript score misZ 3.8989 (greater than threshold 3.09). GenCC has associacion of gene with polyposis syndrome, hereditary mixed, 2, generalized juvenile polyposis/juvenile polyposis coli, hereditary mixed polyposis syndrome, pulmonary arterial hypertension, juvenile polyposis syndrome.

BP6

Variant 10-86919256-A-G is Benign according to our data. Variant chr10-86919256-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 127903.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=9, not_provided=1}.

BS2

High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BMPR1A	NM_004329.3 linkuse as main transcript	c.953A>G	p.Tyr318Cys	missense_variant	10/13	ENST00000372037.8	NP_004320.2	P36894

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BMPR1A	ENST00000372037.8 linkuse as main transcript	c.953A>G	p.Tyr318Cys	missense_variant	10/13	1	NM_004329.3	ENSP00000361107.2		P36894

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152162

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000239

AC:

AN:

251100

Hom.:

AF XY:

0.0000295

AC XY:

AN XY:

135714

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000867

Gnomad ASJ exome

AF:

0.0000992

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000164

AC:

AN:

1461656

Hom.:

Cov.:

AF XY:

0.0000165

AC XY:

AN XY:

727134

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000895

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000153

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152162

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74322

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.000478

Bravo

AF:

0.00000756

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:9Benign:2Other:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Juvenile polyposis syndrome

Uncertain:3

Uncertain significance, criteria provided, single submitter	clinical testing	All of Us Research Program, National Institutes of Health	Sep 28, 2024	This missense variant replaces tyrosine with cysteine at codon 318 of the BMPR1A protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has been reported in an individual affected with breast cancer (PMID: 25186627), but also in a healthy individual (PMID: 24728327). This variant has also been identified in 7/282504 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
Uncertain significance, criteria provided, single submitter	clinical testing	Myriad Genetics, Inc.	Mar 02, 2023	This variant is classified as a variant of uncertain significance as there is insufficient evidence to determine its impact on protein function and/or cancer risk. -
Uncertain significance, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 15, 2024	This sequence change replaces tyrosine, which is neutral and polar, with cysteine, which is neutral and slightly polar, at codon 318 of the BMPR1A protein (p.Tyr318Cys). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with BMPR1A-related conditions. ClinVar contains an entry for this variant (Variation ID: 127903). Advanced modeling performed at Invitae incorporating data from internal and/or published experimental studies (Invitae) indicates that this missense variant is not expected to disrupt BMPR1A function with a negative predictive value of 95%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Hereditary cancer-predisposing syndrome

Uncertain:2Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Color Diagnostics, LLC DBA Color Health	Dec 13, 2022	This missense variant replaces tyrosine with cysteine at codon 318 of the BMPR1A protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has been reported in an individual affected with breast cancer (PMID: 25186627), but also in a healthy individual (PMID: 24728327). This variant has also been identified in 7/282504 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
Likely benign, criteria provided, single submitter	clinical testing	Ambry Genetics	Jun 08, 2020	This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Uncertain significance, criteria provided, single submitter	curation	Sema4, Sema4	Jul 07, 2021	- -

not provided

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Quest Diagnostics Nichols Institute San Juan Capistrano	May 29, 2020	- -
Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Jan 25, 2023	In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 25186627, 24728327) -

not specified

Benign:1Other:1

Likely benign, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Nov 03, 2023	Variant summary: BMPR1A c.953A>G (p.Tyr318Cys) results in a non-conservative amino acid change located in the Serine-threonine/tyrosine-protein kinase, catalytic domain of the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 1.9e-05 in 1615118 control chromosomes (gnomad v4, Bodian_2014). The observed variant frequency is approximately 9.29 fold of the estimated maximal expected allele frequency for a pathogenic variant in BMPR1A causing Juvenile Polyposis Syndrome phenotype (2e-06), strongly suggesting that the variant is benign. c.953A>G has been reported in the literature in at least one individual affected with breast cancer (Tung_2015), but has also been reported in control cohorts (Bodian_2014, Okawa_2023). These report(s) do not provide unequivocal conclusions about association of the variant with Juvenile Polyposis Syndrome. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 24728327, 25186627, 36243179). Eight submitters have cited clinical-significance assessments for this variant to ClinVar after 2014 (VUS, N=7; likely benign, n=1). Based on the evidence outlined above, the variant was classified as likely benign. -
not provided, no classification provided	reference population	ITMI	Sep 19, 2013	- -

Polyposis syndrome, hereditary mixed, 2

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Baylor Genetics

Mar 05, 2024

- -

Generalized juvenile polyposis/juvenile polyposis coli

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Counsyl

Nov 08, 2016

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.57

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.21

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.79

Eigen

Uncertain

0.60

Eigen_PC

Uncertain

0.56

FATHMM_MKL

Uncertain

0.91

M_CAP

Benign

0.045

MetaRNN

Uncertain

0.65

MetaSVM

Uncertain

-0.17

MutationAssessor

Uncertain

2.3

PrimateAI

Pathogenic

0.88

PROVEAN

Pathogenic

-6.7

REVEL

Uncertain

0.38

Sift

Uncertain

0.020

Sift4G

Uncertain

0.026

Polyphen

0.96

Vest4

0.52

MutPred

0.68

Loss of methylation at K322 (P = 0.0563);

MVP

0.54

MPC

2.0

ClinPred

0.52

GERP RS

4.9

Varity_R

0.53

gMVP

0.69

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