Cyclin H

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CCNH
Protein CCNH PDB 1jkw.png
Available structures
PDB Ortholog search: PDBe RCSB
Identifiers
Aliases CCNH, CAK, CycH, p34, p37, Cyclin H
External IDs MGI: 1913921 HomoloGene: 946 GeneCards: 902
RNA expression pattern
PBB GE CCNH 204093 at tn.png
More reference expression data
Orthologs
Species Human Mouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001199189
NM_001239

NM_023243

RefSeq (protein)

NP_001230.1

NP_075732.1

Location (UCSC) Chr 5: 87.39 – 87.41 Mb Chr 13: 85.19 – 85.22 Mb
PubMed search [1] [2]
Wikidata
View/Edit Human View/Edit Mouse

Cyclin-H is a protein that in humans is encoded by the CCNH gene.[1][2]

Function[edit]

The protein encoded by this gene belongs to the highly conserved cyclin family, whose members are characterized by a dramatic periodicity in protein abundance through the cell cycle. Cyclins function as regulators of CDK kinases. Different cyclins exhibit distinct expression and degradation patterns which contribute to the temporal coordination of each mitotic event. This cyclin forms a complex with CDK7 kinase and ring finger protein MAT1. The kinase complex is able to phosphorylate CDK2 and CDC2 kinases, thus functions as a CDK-activating kinase (CAK). This cyclin and its kinase partner are components of TFIIH, as well as RNA polymerase II protein complexes. They participate in two different transcriptional regulation processes, suggesting an important link between basal transcription control and the cell cycle machinery.[2]

Interactions[edit]

Cyclin H has been shown to interact with P53,[3] Cyclin-dependent kinase 7[4][5][6] and MNAT1.[7][8]

References[edit]

  1. ^ Eki T, Okumura K, Abe M, Kagotani K, Taguchi H, Murakami Y, Pan ZQ, Hanaoka F (Jan 1998). "Mapping of the human genes encoding cyclin H (CCNH) and the CDK-activating kinase (CAK) assembly factor MAT1 (MNAT1) to chromosome bands 5q13.3-q14 and 14q23, respectively". Genomics. 47 (1): 115–20. doi:10.1006/geno.1997.5053. PMID 9465303. 
  2. ^ a b "Entrez Gene: CCNH cyclin H". 
  3. ^ Schneider E, Montenarh M, Wagner P (Nov 1998). "Regulation of CAK kinase activity by p53". Oncogene. 17 (21): 2733–41. doi:10.1038/sj.onc.1202504. PMID 9840937. 
  4. ^ Mäkelä TP, Tassan JP, Nigg EA, Frutiger S, Hughes GJ, Weinberg RA (Sep 1994). "A cyclin associated with the CDK-activating kinase MO15". Nature. 371 (6494): 254–7. doi:10.1038/371254a0. PMID 8078587. 
  5. ^ Yee A, Nichols MA, Wu L, Hall FL, Kobayashi R, Xiong Y (Dec 1995). "Molecular cloning of CDK7-associated human MAT1, a cyclin-dependent kinase-activating kinase (CAK) assembly factor". Cancer Research. 55 (24): 6058–62. PMID 8521393. 
  6. ^ Garber ME, Mayall TP, Suess EM, Meisenhelder J, Thompson NE, Jones KA (Sep 2000). "CDK9 autophosphorylation regulates high-affinity binding of the human immunodeficiency virus type 1 tat-P-TEFb complex to TAR RNA". Molecular and Cellular Biology. 20 (18): 6958–69. doi:10.1128/MCB.20.18.6958-6969.2000. PMC 88771free to read. PMID 10958691. 
  7. ^ Ewing RM, Chu P, Elisma F, Li H, Taylor P, Climie S, McBroom-Cerajewski L, Robinson MD, O'Connor L, Li M, Taylor R, Dharsee M, Ho Y, Heilbut A, Moore L, Zhang S, Ornatsky O, Bukhman YV, Ethier M, Sheng Y, Vasilescu J, Abu-Farha M, Lambert JP, Duewel HS, Stewart II, Kuehl B, Hogue K, Colwill K, Gladwish K, Muskat B, Kinach R, Adams SL, Moran MF, Morin GB, Topaloglou T, Figeys D (2007). "Large-scale mapping of human protein-protein interactions by mass spectrometry". Molecular Systems Biology. 3 (1): 89. doi:10.1038/msb4100134. PMC 1847948free to read. PMID 17353931. 
  8. ^ Talukder AH, Mishra SK, Mandal M, Balasenthil S, Mehta S, Sahin AA, Barnes CJ, Kumar R (Mar 2003). "MTA1 interacts with MAT1, a cyclin-dependent kinase-activating kinase complex ring finger factor, and regulates estrogen receptor transactivation functions". The Journal of Biological Chemistry. 278 (13): 11676–85. doi:10.1074/jbc.M209570200. PMID 12527756. 

Further reading[edit]