rs3796442

Positions:

• chr4-95132876-C-A
• chr4-95132876-C-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001203.3(BMPR1B):​c.1076+1364C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0839 in 152,190 control chromosomes in the GnomAD database, including 719 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.084 (719 hom., cov: 32)
• Consequence: BMPR1B NM_001203.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.247

Genes affected

BMPR1B (HGNC:1077): (bone morphogenetic protein receptor type 1B) This gene encodes a member of the bone morphogenetic protein (BMP) receptor family of transmembrane serine/threonine kinases. The ligands of this receptor are BMPs, which are members of the TGF-beta superfamily. BMPs are involved in endochondral bone formation and embryogenesis. These proteins transduce their signals through the formation of heteromeric complexes of 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. Mutations in this gene have been associated with primary pulmonary hypertension. Several transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Feb 2012]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.85).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.198 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BMPR1B	NM_001203.3	c.1076+1364C>A		intron_variant		ENST00000515059.6	NP_001194.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BMPR1B	ENST00000515059.6	c.1076+1364C>A		intron_variant		1	NM_001203.3	ENSP00000426617	P4

Frequencies

GnomAD3 genomes AF: 0.0839 AC: 12762 AN: 152070 Hom.: 718 Cov.: 32

Gnomad AFR AF: 0.0352

Gnomad AMI AF: 0.0384

Gnomad AMR AF: 0.130

Gnomad ASJ AF: 0.0530

Gnomad EAS AF: 0.209

Gnomad SAS AF: 0.0897

Gnomad FIN AF: 0.118

Gnomad MID AF: 0.0475

Gnomad NFE AF: 0.0908

Gnomad OTH AF: 0.0761

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0839 AC: 12770 AN: 152190 Hom.: 719 Cov.: 32 AF XY: 0.0861 AC XY: 6405 AN XY: 74408

Gnomad4 AFR AF: 0.0352

Gnomad4 AMR AF: 0.130

Gnomad4 ASJ AF: 0.0530

Gnomad4 EAS AF: 0.209

Gnomad4 SAS AF: 0.0902

Gnomad4 FIN AF: 0.118

Gnomad4 NFE AF: 0.0908

Gnomad4 OTH AF: 0.0747

Alfa AF: 0.0855 Hom.: 951

Bravo AF: 0.0844

Asia WGS AF: 0.134 AC: 470 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.85
CADD	Benign	0.61
DANN	Benign	0.70

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

Other links and lift over

dbSNP: rs3796442; hg19: chr4-96054027;