6-55774205-T-G

Variant names:

• chr6-55774205-T-G
• rs995450354
• NM_021073.4:c.871A>C

Variant summary

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

The NM_021073.4(BMP5):​c.871A>C​(p.Arg291Arg) variant causes a synonymous change. The variant allele was found at a frequency of 0.000000684 in 1,461,044 control chromosomes in the GnomAD database, with no homozygous occurrence. 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: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: BMP5 NM_021073.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.73
• Publications: 0 publications found

Genes affected

BMP5 (HGNC:1072): (bone morphogenetic protein 5) This gene encodes a secreted ligand of the TGF-beta (transforming growth factor-beta) superfamily of proteins. Ligands of this family bind various TGF-beta receptors leading to recruitment and activation of SMAD family transcription factors that regulate gene expression. The encoded preproprotein is proteolytically processed to generate each subunit of the disulfide-linked homodimer, which plays a role in bone and cartilage development. Polymorphisms in this gene may be associated with osteoarthritis in human patients. This gene is differentially regulated in multiple human cancers. This gene encodes distinct protein isoforms that may be similarly proteolytically processed. [provided by RefSeq, Jul 2016]

BMP5 Gene-Disease associations (from GenCC):

• dysostosis

  Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.49).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_021073.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BMP5	NM_021073.4	MANE Select	c.871A>C	p.Arg291Arg	synonymous	Exon 4 of 7	NP_066551.1	P22003-1
	BMP5	NM_001329754.2		c.871A>C	p.Arg291Arg	synonymous	Exon 4 of 6	NP_001316683.1	P22003-2
	BMP5	NM_001329756.2		c.871A>C	p.Arg291Arg	synonymous	Exon 4 of 5	NP_001316685.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BMP5	ENST00000370830.4	TSL:1 MANE Select	c.871A>C	p.Arg291Arg	synonymous	Exon 4 of 7	ENSP00000359866.3	P22003-1
	BMP5	ENST00000901523.1		c.871A>C	p.Arg291Arg	synonymous	Exon 4 of 6	ENSP00000571582.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461044 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 726838

African (AFR) AF: 0.00 AC: 0 AN: 33428

American (AMR) AF: 0.00 AC: 0 AN: 44636

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26090

East Asian (EAS) AF: 0.00 AC: 0 AN: 39690

South Asian (SAS) AF: 0.00 AC: 0 AN: 86244

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53418

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5730

European-Non Finnish (NFE) AF: 9.00e-7 AC: 1 AN: 1111456

Other (OTH) AF: 0.00 AC: 0 AN: 60352

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.49
CADD	Benign	6.7
DANN	Benign	0.56
PhyloP100		3.7

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: rs995450354; hg19: chr6-55639003; COSMIC: COSV63701310;