Cartilage associated protein

Protein found in humans
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An Error has occurred retrieving Wikidata item for infobox Cartilage associated protein is a protein that in humans is encoded by the CRTAP gene.[1][2]

Function and Structure

The protein encoded by this gene is similar to the chicken and mouse CRTAP genes. The encoded protein is a scaffolding protein that may influence the activity of at least one member of the cytohesin/ARNO family in response to specific cellular stimuli.[1]

CRTAP forms a tight protein complex with two other enzymes involved in post-translational modification: Leprecan (P3H1) and PPIB[3]. In this complex, CRTAP acts as a collagen-binding site, capturing substrates for subsequent enzymatic processing by P3H1 and PPIB. Notably, CRTAP exhibits a folding pattern similar to the N-terminal domain of P3H1.

Clinical significance

Mutations in the CRTAP gene are associated with osteogenesis imperfecta, types VII and IIB, a connective tissue disorder characterized by bone fragility and low bone mass.[4][5]

References

  1. ^ 1.0 1.1 "Entrez Gene: cartilage associated protein".
  2. ^ Tonachini L, Morello R, Monticone M, Skaug J, Scherer SW, Cancedda R, Castagnola P (1999). "cDNA cloning, characterization and chromosome mapping of the gene encoding human cartilage associated protein (CRTAP)". Cytogenet. Cell Genet. 87 (3–4): 191–4. doi:10.1159/000015463. PMID 10702664. S2CID 24887051.
  3. ^ Li, Wenguo; Peng, Junjiang; Yao, Deqiang; Rao, Bing; Xia, Ying; Wang, Qian; Li, Shaobai; Cao, Mi; Shen, Yafeng; Ma, Peixiang; Liao, Rijing; Qin, An; Zhao, Jie; Cao, Yu (2024-09-08). "The structural basis for the collagen processing by human P3H1/CRTAP/PPIB ternary complex". Nature Communications. 15 (1). doi:10.1038/s41467-024-52321-6. ISSN 2041-1723. PMC 11381544. PMID 39245686.{{cite journal}}: CS1 maint: PMC format (link)
  4. ^ Barnes AM, Chang W, Morello R, et al. (December 2006). "Deficiency of cartilage-associated protein in recessive lethal osteogenesis imperfecta". N. Engl. J. Med. 355 (26): 2757–64. doi:10.1056/NEJMoa063804. PMC 7509984. PMID 17192541.
  5. ^ Baldridge D, Schwarze U, Morello R, et al. (December 2008). "CRTAP and LEPRE1 mutations in recessive osteogenesis imperfecta". Hum. Mutat. 29 (12): 1435–42. doi:10.1002/humu.20799. PMC 2671575. PMID 18566967.

Further reading

This article incorporates text from the United States National Library of Medicine, which is in the public domain.