Bone morphogenetic protein 4

Bone morphogenetic protein 4

PDB rendering based on 1reu.
Identifiers
Symbols BMP4; BMP2B; BMP2B1; MCOPS6; OFC11; ZYME
External IDs OMIM112262 MGI88180 HomoloGene7247 GeneCards: BMP4 Gene
RNA expression pattern
More reference expression data
Orthologs
Species Human Mouse
Entrez 652 12159
Ensembl ENSG00000125378 ENSMUSG00000021835
UniProt P12644 Q3ULR1
RefSeq (mRNA) NM_001202.3 NM_007554.2
RefSeq (protein) NP_001193.2 NP_031580.2
Location (UCSC) Chr 14:
54.42 – 54.42 Mb
Chr 14:
47 – 47.01 Mb
PubMed search [1] [2]

Bone morphogenetic protein 4 is a protein that in humans is encoded by` BMP4 gene.[1][2]

BMP4 is a member of the bone morphogenetic protein family which is part of the transforming growth factor-beta superfamily. The superfamily includes large families of growth and differentiation factors.

Contents

History

Bone morphogenetic proteins were originally identified by an ability of demineralized bone extract to induce endochondral osteogenesis in vivo in an extraskeletal site.

Function

This particular family member plays an important role in the onset of endochondral bone formation in humans. It has been shown to be involved in muscle development, bone mineralization, and uteric bud development.

In human embryonic development, BMP4 is a critical signaling molecule required for the early differentiation of the embryo and establishing of a dorsal-ventral axis. BMP4 is secreted from the dorsal portion of the notochord, and it acts in concert with sonic hedgehog (released from the ventral portion of the notochord) to establish a dorsal-ventral axis for the differentiation of later structures.

BMP4 stimulates differentiation of overlying ectodermal tissue.

Inhibition

Inhibition of the BMP4 signal (by chordin, noggin, or follistatin) causes the ectoderm to differentiate into the neural plate. If these cells also receive signals from FGF, they will differentiate into the spinal cord; in the absence of FGF the cells become brain tissue.

Configurations

Alternative splicing in the 5' untranslated region of this gene has been described and three variants are described, all encoding an identical protein.[3]

BMP4 is a polypeptide belonging to the TGF-β superfamily of proteins. It, like other bone morphogenetic proteins, is involved in bone and cartilage development, specifically tooth and limb development and fracture repair.

Disease

BMP4 has also been implicated in Fibrodysplasia Ossificans Progressiva in which it is overexpressed.[4] Increase in expression of BMP4 has been associated with a variety of bone diseases, including the heritable disorder Fibrodysplasia Ossificans Progressiva.

References

  1. ^ van den Wijngaard A, Weghuis DO, Boersma CJ, van Zoelen EJ, Geurts van Kessel A, Olijve W (Nov 1995). "Fine mapping of the human bone morphogenetic protein-4 gene (BMP4) to chromosome 14q22-q23 by in situ hybridization". Genomics 27 (3): 559–60. doi:10.1006/geno.1995.1096. PMID 7558046. 
  2. ^ Oida S, Iimura T, Maruoka Y, Takeda K, Sasaki S (Nov 1995). "Cloning and sequence of bone morphogenetic protein 4 (BMP-4) from a human placental cDNA library". DNA Seq 5 (5): 273–5. PMID 7579580. 
  3. ^ "Entrez Gene: BMP4 bone morphogenetic protein 4". http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=652. 
  4. ^ Kan L, Hu M, Gomes WA, Kessler JA (October 2004). "Transgenic Mice Overexpressing BMP4 Develop a Fibrodysplasia Ossificans Progressiva (FOP)-Like Phenotype". Am. J. Pathol. 165 (4): 1107–15. doi:10.1016/S0002-9440(10)63372-X. PMC 1618644. PMID 15466378. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1618644. 

Further reading

External links