chr2-202376771-C-G

Variant names:

• chr2-202376771-C-G
• rs114110688
• NM_001204.7:c.-704C>G

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BS1 BS2

The NM_001204.7(BMPR2):​c.-704C>G variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00503 in 151,274 control chromosomes in the GnomAD database, including 11 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency: Genomes: 𝑓 0.0050 (11 hom., cov: 31)
• Consequence: BMPR2 NM_001204.7 5_prime_UTR
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.149
• Publications: 1 publications found

Genes affected

BMPR2 (HGNC:1078): (bone morphogenetic protein receptor type 2) This gene encodes a member of the bone morphogenetic protein (BMP) receptor family of transmembrane serine/threonine kinases. The ligands of this receptor 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 two different types of serine (threonine) kinase receptors: type I receptors of about 50-55 kD and type II receptors of about 70-80 kD. Mutations in this gene have been associated with primary pulmonary hypertension, both familial and fenfluramine-associated, and with pulmonary venoocclusive disease. [provided by RefSeq, May 2020]

BMPR2 Gene-Disease associations (from GenCC):

• pulmonary arterial hypertension

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• pulmonary hypertension, primary, 1

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae)
• heritable pulmonary arterial hypertension

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• congenital heart disease

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen

ENSG00000273456 (HGNC:):

ACMG classification

Our verdict: Benign. The variant received -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.81).
• BP6: Variant 2-202376771-C-G is Benign according to our data. Variant chr2-202376771-C-G is described in ClinVar as [Benign]. Clinvar id is 333627.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS1: Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00503 (761/151274) while in subpopulation AFR AF = 0.0177 (729/41302). AF 95% confidence interval is 0.0166. There are 11 homozygotes in GnomAd4. There are 376 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.
• BS2: High AC in GnomAd4 at 761 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BMPR2	NM_001204.7	c.-704C>G		5_prime_UTR_variant	Exon 1 of 13	ENST00000374580.10	NP_001195.2
BMPR2	XM_011511687.2	c.-704C>G		5_prime_UTR_variant	Exon 1 of 13		XP_011509989.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BMPR2	ENST00000374580.10	c.-704C>G		5_prime_UTR_variant	Exon 1 of 13	1	NM_001204.7	ENSP00000363708.4
ENSG00000273456	ENST00000724884.1	n.154+20G>C		intron_variant	Intron 1 of 1
ENSG00000273456	ENST00000724885.1	n.-33G>C		upstream_gene_variant

Frequencies

GnomAD3 genomes AF: 0.00497 AC: 752 AN: 151158 Hom.: 10 Cov.: 31

Gnomad AFR AF: 0.0175

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00178

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000213

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00194

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

GnomAD4 genome AF: 0.00503 AC: 761 AN: 151274 Hom.: 11 Cov.: 31 AF XY: 0.00509 AC XY: 376 AN XY: 73850

African (AFR) AF: 0.0177 AC: 729 AN: 41302

American (AMR) AF: 0.00178 AC: 27 AN: 15168

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3466

East Asian (EAS) AF: 0.00 AC: 0 AN: 4998

South Asian (SAS) AF: 0.000213 AC: 1 AN: 4696

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10564

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67802

Other (OTH) AF: 0.00192 AC: 4 AN: 2088

Alfa AF: 0.00368 Hom.: 0

Bravo AF: 0.00552

Asia WGS AF: 0.00289 AC: 10 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

Pulmonary hypertension, primary, 1 Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.81
CADD	Benign	6.6
DANN	Benign	0.69
PhyloP100		-0.15
PromoterAI		0.14	Neutral

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs114110688; hg19: chr2-203241494;