8-22177868-C-T

Variant names:

• chr8-22177868-C-T
• rs398122891
• NM_006129.5:c.747C>T

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2 BP4_Moderate BP7

The NM_006129.5(BMP1):​c.747C>T​(p.Phe249Phe) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,460,424 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: 0.0000027 (0 hom.)
• Consequence: BMP1 NM_006129.5 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.166
• Publications: 0 publications found

Genes affected

BMP1 (HGNC:1067): (bone morphogenetic protein 1) This gene encodes a protein that is capable of inducing formation of cartilage in vivo. Although other bone morphogenetic proteins are members of the TGF-beta superfamily, this gene encodes a protein that is not closely related to other known growth factors. This gene is expressed as alternatively spliced variants that share an N-terminal protease domain but differ in their C-terminal region. [provided by RefSeq, Aug 2008]

BMP1 Gene-Disease associations (from GenCC):

• osteogenesis imperfecta type 13

  Inheritance: AR Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
• high bone mass osteogenesis imperfecta

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• osteogenesis imperfecta type 3

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.37).
• BP7: Synonymous conserved (PhyloP=0.166 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BMP1	NM_006129.5	c.747C>T	p.Phe249Phe	synonymous_variant	Exon 6 of 20	ENST00000306385.10	NP_006120.1
BMP1	NM_001199.4	c.747C>T	p.Phe249Phe	synonymous_variant	Exon 6 of 16	ENST00000306349.13	NP_001190.1
BMP1	NR_033403.2	n.818C>T		non_coding_transcript_exon_variant	Exon 6 of 20
BMP1	NR_033404.2	n.818C>T		non_coding_transcript_exon_variant	Exon 6 of 16

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BMP1	ENST00000306385.10	c.747C>T	p.Phe249Phe	synonymous_variant	Exon 6 of 20	1	NM_006129.5	ENSP00000305714.5
BMP1	ENST00000306349.13	c.747C>T	p.Phe249Phe	synonymous_variant	Exon 6 of 16	1	NM_001199.4	ENSP00000306121.8

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1460424 Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3 AN XY: 726426

African (AFR) AF: 0.00 AC: 0 AN: 33456

American (AMR) AF: 0.00 AC: 0 AN: 44650

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26060

East Asian (EAS) AF: 0.00 AC: 0 AN: 39666

South Asian (SAS) AF: 0.00 AC: 0 AN: 86182

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53330

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 0.00000360 AC: 4 AN: 1110994

Other (OTH) AF: 0.00 AC: 0 AN: 60324

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.37
CADD	Benign	15
DANN	Benign	0.79
PhyloP100		0.17
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

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: rs398122891; hg19: chr8-22035381; COSMIC: COSV105114169; COSMIC: COSV105114169;