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BMPER
BMP binding endothelial regulator
BMPER is located on the short (p) arm of chromosome 7, at band 7p14.3. Arm ratio per GRCh38 - banding schematic.
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Overview
BMPER resides on chromosome 7 and encodes BMP binding endothelial regulator, a protein involved in controlling bone morphogenetic protein (BMP) signalling. BMPs are growth factors that guide cell differentiation, tissue patterning, and blood vessel formation during development and throughout life. The BMPER protein regulates when and where BMP signals are transmitted, helping coordinate complex developmental programmes.
This regulatory function appears particularly important in vascular biology, where precise control of BMP signalling influences blood vessel formation and maintenance. The gene's name reflects its original identification in endothelial cells, though subsequent research has revealed broader expression patterns across multiple tissues during development.
What the gene does
The BMPER protein functions as a context-dependent modulator of BMP signalling pathways. It can bind directly to BMP ligands in the extracellular space, either facilitating or inhibiting their interaction with cell-surface receptors. This dual capacity allows cells to fine-tune their responses to BMPs based on local tissue requirements.
Research suggests BMPER influences several developmental processes. During embryogenesis, it contributes to proper patterning of skeletal structures by regulating where and when BMP signals promote cartilage and bone formation. The protein also appears to coordinate vascular development, helping establish the branching architecture of blood vessel networks. In endothelial cells lining blood vessels, BMPER may modulate cellular responses to pro-angiogenic signals.
The protein's regulatory activity depends on its concentration relative to BMP ligands and their receptors. At lower concentrations, BMPER can enhance BMP signalling by presenting ligands to receptors, whilst at higher concentrations it may sequester BMPs away from receptors, reducing signal transmission. This concentration-dependent behaviour enables dynamic control of signalling gradients across developing tissues.
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Chromosome location
BMPER is located on the short arm of chromosome 7 at position p14.3 (cytogenetic band 7p14.3). This chromosomal region contains numerous genes involved in developmental regulation and cellular signalling. The precise exon structure and full genomic span of BMPER have been mapped through genome sequencing projects, though detailed structural annotations may vary across different genomic databases.
Protein structure
Domain architecture has not been experimentally characterised in detail for this protein.
Key variants
Genetic variants in BMPER include changes in the DNA sequence that may alter protein production or function. The inheritance pattern associated with BMPER-related conditions varies depending on the specific variant and clinical context. Some changes may have negligible functional impact, whilst others could disrupt the protein's ability to regulate BMP signalling effectively. Detailed variant classification requires assessment of population frequency data, functional studies, and clinical observations.
Sample of pathogenic variants
10 pathogenic / likely-pathogenic variants from ClinVar, ranked by review status (expert-panel-reviewed first). This is a sample; recurrent founder variants in a specific population may not appear here - see the full ClinVar listing via the link above.
| Variant (HGVS) | Protein change | Classification | Evidence | Associated condition |
|---|---|---|---|---|
c.925C>T | p.Gln309Ter | Pathogenic | ★★☆☆ | not provided |
g.(?_34009921)_(34010051_?)del | - | Pathogenic | ★☆☆☆ | not provided |
c.1259C>A | p.Ser420Ter | Pathogenic | ★☆☆☆ | not provided |
c.1577G>A | p.Trp526Ter | Pathogenic | ★☆☆☆ | not provided |
c.1648_1649del | p.Val550fs | Pathogenic | ★☆☆☆ | not provided |
c.501_502del | p.Val167_Phe168insTer | Pathogenic | ★☆☆☆ | not provided |
c.655C>T | p.Gln219Ter | Pathogenic | ★☆☆☆ | not provided |
c.674T>A | p.Leu225Ter | Pathogenic | ★☆☆☆ | not provided |
c.816C>A | p.Cys272Ter | Pathogenic | ★☆☆☆ | not provided |
c.942G>A | p.Trp314Ter | Pathogenic | ★☆☆☆ | not provided |
Evidence stars indicate ClinVar review status. Individual variant interpretation should always be performed by a qualified clinical laboratory - many variants remain classified as Variants of Uncertain Significance (VUS) pending more research.
Associated conditions
Currently, no specific inherited conditions have been definitively linked to BMPER variants in clinical genetics databases. The gene's role in developmental signalling suggests that certain variants could theoretically influence skeletal development or vascular biology, though such associations require robust clinical evidence before being established. Research into BMPER function continues to explore its potential involvement in developmental disorders.
No disease links recorded for this gene in our reference set.
UK clinical status
Sources: NHS GMS PanelApp · Genomics England PanelApp · NHS National Genomic Test Directory
Frequently asked questions
What does the BMPER protein do in the body?
BMPER regulates bone morphogenetic protein signalling by binding to BMP molecules and either enhancing or inhibiting their activity. This helps coordinate tissue development, particularly in blood vessels and skeletal structures during embryonic growth.
Is BMPER associated with any inherited conditions?
No specific inherited conditions have been definitively linked to BMPER variants in current clinical genetics databases. The gene's developmental role suggests potential relevance to skeletal or vascular biology, though such associations require further research evidence.
How does BMPER interact with bone morphogenetic proteins?
BMPER binds directly to BMP ligands in the space outside cells. Depending on its concentration, it can either help present BMPs to their receptors (enhancing signalling) or sequester them away from receptors (reducing signalling), enabling dynamic control of cellular responses.