rs1057520966

Variant names:

• chr10-86923380-C-A
• rs1057520966
• NM_004329.3:c.1347C>A

Your query was ambiguous. Multiple possible variants found:

• chr10-86923380-C-A
• chr10-86923380-C-G
• chr10-86923380-C-T

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM2 BP4_Strong BP6 BP7

The NM_001406559.1(BMPR1A):​c.1422C>A​(p.Ile474Ile) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. I474I) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: BMPR1A NM_001406559.1 synonymous
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:3
• Conservation: PhyloP100: -2.18
• Publications: 0 publications found

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 Gene-Disease associations (from GenCC):

• generalized juvenile polyposis/juvenile polyposis coli

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, Genomics England PanelApp
• juvenile polyposis syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P
• polyposis syndrome, hereditary mixed, 2

  Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
• hereditary mixed polyposis syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• congenital heart defects, multiple types

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
• pulmonary arterial hypertension

  Inheritance: Unknown Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.88).
• BP6: Variant 10-86923380-C-A is Benign according to our data. Variant chr10-86923380-C-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 1338210.
• BP7: Synonymous conserved (PhyloP=-2.18 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001406559.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BMPR1A	NM_004329.3	MANE Select	c.1347C>A	p.Ile449Ile	synonymous	Exon 12 of 13	NP_004320.2
	BMPR1A	NM_001406559.1		c.1422C>A	p.Ile474Ile	synonymous	Exon 13 of 14	NP_001393488.1
	BMPR1A	NM_001406560.1		c.1395C>A	p.Ile465Ile	synonymous	Exon 13 of 14	NP_001393489.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BMPR1A	ENST00000372037.8	TSL:1 MANE Select	c.1347C>A	p.Ile449Ile	synonymous	Exon 12 of 13	ENSP00000361107.2
	BMPR1A	ENST00000926286.1		c.1395C>A	p.Ile465Ile	synonymous	Exon 13 of 14	ENSP00000596345.1
	BMPR1A	ENST00000480152.3	TSL:3	c.1347C>A	p.Ile449Ile	synonymous	Exon 13 of 14	ENSP00000483569.2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions as Germline

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
-	-	2	Juvenile polyposis syndrome (2)
-	-	1	Hereditary cancer-predisposing syndrome (1)
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.88
CADD	Benign	0.079
DANN	Benign	0.56
PhyloP100		-2.2

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs1057520966; hg19: chr10-88683137;