chr4-95018583-A-G

Variant names:

• chr4-95018583-A-G
• rs17022863
• NM_001203.3:c.-18+22449A>G

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001203.3(BMPR1B):​c.-18+22449A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.248 in 151,976 control chromosomes in the GnomAD database, including 6,067 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 0.25 (6067 hom., cov: 32)
• Consequence: BMPR1B NM_001203.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.35
• Publications: 7 publications found

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]

BMPR1B Gene-Disease associations (from GenCC):

• brachydactyly type A2

  Inheritance: AD, AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), G2P
• acromesomelic dysplasia 3

  Inheritance: AR Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
• brachydactyly

  Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
• brachydactyly type A1D

  Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
• brachydactyly type A1

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• acromesomelic dysplasia 2A

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• acromesomelic dysplasia 2B

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• pulmonary arterial hypertension

  Inheritance: Unknown Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.81).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.456 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BMPR1B	NM_001203.3	c.-18+22449A>G		intron_variant	Intron 3 of 12	ENST00000515059.6	NP_001194.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BMPR1B	ENST00000515059.6	c.-18+22449A>G		intron_variant	Intron 3 of 12	1	NM_001203.3	ENSP00000426617.1

Frequencies

GnomAD3 genomes AF: 0.248 AC: 37694 AN: 151858 Hom.: 6052 Cov.: 32

Gnomad AFR AF: 0.461

Gnomad AMI AF: 0.101

Gnomad AMR AF: 0.185

Gnomad ASJ AF: 0.224

Gnomad EAS AF: 0.0160

Gnomad SAS AF: 0.101

Gnomad FIN AF: 0.232

Gnomad MID AF: 0.301

Gnomad NFE AF: 0.166

Gnomad OTH AF: 0.260

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

GnomAD4 genome AF: 0.248 AC: 37746 AN: 151976 Hom.: 6067 Cov.: 32 AF XY: 0.245 AC XY: 18194 AN XY: 74302

African (AFR) AF: 0.461 AC: 19110 AN: 41426

American (AMR) AF: 0.184 AC: 2816 AN: 15270

Ashkenazi Jewish (ASJ) AF: 0.224 AC: 779 AN: 3470

East Asian (EAS) AF: 0.0160 AC: 83 AN: 5172

South Asian (SAS) AF: 0.100 AC: 483 AN: 4820

European-Finnish (FIN) AF: 0.232 AC: 2451 AN: 10556

Middle Eastern (MID) AF: 0.306 AC: 90 AN: 294

European-Non Finnish (NFE) AF: 0.166 AC: 11284 AN: 67944

Other (OTH) AF: 0.264 AC: 558 AN: 2114

Alfa AF: 0.246 Hom.: 842

Bravo AF: 0.256

Asia WGS AF: 0.115 AC: 399 AN: 3476

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.81
CADD	Benign	14
DANN	Benign	0.73
PhyloP100		1.4
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs17022863; hg19: chr4-95939734;