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Host cell factor C1

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Template:PBB Host cell factor 1 (HCFC1, HCF1, or HCF-1), also known as VP16-accessory protein,[1] is a protein that in humans is encoded by the HCFC1 gene.[2][3]

Structure

HCF1 is a member of the highly conserved host cell factor family and encodes a protein with five Kelch repeats, a fibronectin-like motif, and six HCF repeats, each of which contains a highly specific cleavage signal. This nuclear transcription coregulator is proteolytically cleaved at one or more of the six possible sites, resulting in the creation of an N-terminal chain and the corresponding C-terminal chain. The final form of this protein consists of noncovalently bound N- and C-terminal chains which interact through electrostatic forces.

Function

HCF1 is involved in control of the cell cycle as well as having regulatory roles in a multitude of processes related to transcription. Additionally, work in model organisms point to HCF1 as being a putative longevity determinant.[4] Alternatively spliced variants that encode different protein isoforms have been described; however, not all variants have been fully characterized.[3]

Mutations in this gene have been linked to disorders of the cobalamine metabolism.[5]

Interactions

Host cell factor C1 has been shown to interact with:

References

  1. ^ GeneCards entry for HCFC1, http://genecards.org
  2. ^ Wilson AC, LaMarco K, Peterson MG, Herr W (Jul 1993). "The VP16 accessory protein HCF is a family of polypeptides processed from a large precursor protein". Cell. 74 (1): 115–25. doi:10.1016/0092-8674(93)90299-6. PMID 8392914.
  3. ^ a b "Entrez Gene: HCFC1 host cell factor C1 (VP16-accessory protein)".
  4. ^ Li J, Ebata A, Dong Y, Rizki G, Iwata T, Lee SS (Sep 2008). "Caenorhabditis elegans HCF-1 functions in longevity maintenance as a DAF-16 regulator". PLoS Biology. 6 (9): e233. doi:10.1371/journal.pbio.0060233. PMC 2553839. PMID 18828672.{{cite journal}}: CS1 maint: unflagged free DOI (link)
  5. ^ Yu HC, Sloan JL, Scharer G, Brebner A, Quintana AM, Achilly NP, Manoli I, Coughlin CR, Geiger EA, Schneck U, Watkins D, Suormala T, Van Hove JL, Fowler B, Baumgartner MR, Rosenblatt DS, Venditti CP, Shaikh TH (Sep 2013). "An X-linked cobalamin disorder caused by mutations in transcriptional coregulator HCFC1". American Journal of Human Genetics. 93 (3): 506–14. doi:10.1016/j.ajhg.2013.07.022. PMID 24011988.
  6. ^ Machida YJ, Machida Y, Vashisht AA, Wohlschlegel JA, Dutta A (Dec 2009). "The deubiquitinating enzyme BAP1 regulates cell growth via interaction with HCF-1". The Journal of Biological Chemistry. 284 (49): 34179–88. doi:10.1074/jbc.M109.046755. PMC 2797188. PMID 19815555.{{cite journal}}: CS1 maint: unflagged free DOI (link)
  7. ^ Lu R, Yang P, Padmakumar S, Misra V (Aug 1998). "The herpesvirus transactivator VP16 mimics a human basic domain leucine zipper protein, luman, in its interaction with HCF". Journal of Virology. 72 (8): 6291–7. PMC 109766. PMID 9658067.
  8. ^ Freiman RN, Herr W (Dec 1997). "Viral mimicry: common mode of association with HCF by VP16 and the cellular protein LZIP". Genes & Development. 11 (23): 3122–7. doi:10.1101/gad.11.23.3122. PMC 316754. PMID 9389645.
  9. ^ Vogel JL, Kristie TM (Feb 2000). "The novel coactivator C1 (HCF) coordinates multiprotein enhancer formation and mediates transcription activation by GABP". The EMBO Journal. 19 (4): 683–90. doi:10.1093/emboj/19.4.683. PMC 305606. PMID 10675337.
  10. ^ a b c d e f g Wysocka J, Myers MP, Laherty CD, Eisenman RN, Herr W (Apr 2003). "Human Sin3 deacetylase and trithorax-related Set1/Ash2 histone H3-K4 methyltransferase are tethered together selectively by the cell-proliferation factor HCF-1". Genes & Development. 17 (7): 896–911. doi:10.1101/gad.252103. PMC 196026. PMID 12670868.
  11. ^ a b c Yokoyama A, Wang Z, Wysocka J, Sanyal M, Aufiero DJ, Kitabayashi I, Herr W, Cleary ML (Jul 2004). "Leukemia proto-oncoprotein MLL forms a SET1-like histone methyltransferase complex with menin to regulate Hox gene expression". Molecular and Cellular Biology. 24 (13): 5639–49. doi:10.1128/MCB.24.13.5639-5649.2004. PMC 480881. PMID 15199122.
  12. ^ Scarr RB, Sharp PA (Aug 2002). "PDCD2 is a negative regulator of HCF-1 (C1)". Oncogene. 21 (34): 5245–54. doi:10.1038/sj.onc.1205647. PMID 12149646.
  13. ^ La Boissière S, Hughes T, O'Hare P (Jan 1999). "HCF-dependent nuclear import of VP16". The EMBO Journal. 18 (2): 480–9. doi:10.1093/emboj/18.2.480. PMC 1171141. PMID 9889203.
  14. ^ Kristie TM, Sharp PA (Mar 1993). "Purification of the cellular C1 factor required for the stable recognition of the Oct-1 homeodomain by the herpes simplex virus alpha-trans-induction factor (VP16)". The Journal of Biological Chemistry. 268 (9): 6525–34. PMID 8454622.
  15. ^ Ajuh PM, Browne GJ, Hawkes NA, Cohen PT, Roberts SG, Lamond AI (Feb 2000). "Association of a protein phosphatase 1 activity with the human factor C1 (HCF) complex". Nucleic Acids Research. 28 (3): 678–86. doi:10.1093/nar/28.3.678. PMC 102561. PMID 10637318.
  16. ^ Gunther M, Laithier M, Brison O (Jul 2000). "A set of proteins interacting with transcription factor Sp1 identified in a two-hybrid screening". Molecular and Cellular Biochemistry. 210 (1–2): 131–42. doi:10.1023/A:1007177623283. PMID 10976766.
  17. ^ Piluso D, Bilan P, Capone JP (Nov 2002). "Host cell factor-1 interacts with and antagonizes transactivation by the cell cycle regulatory factor Miz-1". The Journal of Biological Chemistry. 277 (48): 46799–808. doi:10.1074/jbc.M206226200. PMID 12244100.{{cite journal}}: CS1 maint: unflagged free DOI (link)

Further reading

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