Cyclin H

CCNH

Available structures

Ortholog search: PDBe RCSB

List of PDB id codes
1JKW, 1KXU

Identifiers

Aliases

CCNH, CAK, CycH, p34, p37, Cyclin H

External IDs

MGI: 1913921 HomoloGene: 946 GeneCards: CCNH

Gene ontology
Molecular function	• DNA-dependent ATPase activity • kinase activity • cyclin-dependent protein serine/threonine kinase regulator activity • protein binding • RNA polymerase II carboxy-terminal domain kinase activity
Cellular component	• cyclin-dependent protein kinase activating kinase holoenzyme complex • nucleoplasm • holo TFIIH complex • TFIIK complex • nucleus
Biological process	• termination of RNA polymerase I transcription • regulation of transcription, DNA-templated • phosphorylation • transcription initiation from RNA polymerase I promoter • G1/S transition of mitotic cell cycle • transcription elongation from RNA polymerase II promoter • 7-methylguanosine mRNA capping • transcription from RNA polymerase II promoter • transcription, DNA-templated • positive regulation of phosphorylation of RNA polymerase II C-terminal domain • transcription elongation from RNA polymerase I promoter • G2/M transition of mitotic cell cycle • positive regulation of cyclin-dependent protein serine/threonine kinase activity • cell cycle • transcription-coupled nucleotide-excision repair • transcription initiation from RNA polymerase II promoter • positive regulation of transcription from RNA polymerase II promoter • protein phosphorylation • nucleotide-excision repair, preincision complex assembly
Sources:Amigo / QuickGO

RNA expression pattern

More reference expression data

Orthologs

Species

Human

Mouse

Entrez


902


66671

Ensembl


ENSG00000134480


ENSMUSG00000021548

UniProt


P51946


Q61458

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.^[3]^[4]

Function

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.^[4]

Interactions

Cyclin H has been shown to interact with P53,^[5] Cyclin-dependent kinase 7^[6]^[7]^[8] and MNAT1.^[9]^[10]

References

↑ "Human PubMed Reference:".
↑ "Mouse PubMed Reference:".
↑ 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.
1 2 "Entrez Gene: CCNH cyclin H".
↑ 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.
↑ 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.
↑ 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.
↑ 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 88771. PMID 10958691.
↑ 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 1847948. PMID 17353931.
↑ 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.

Jeang KT (1998). "Tat, Tat-associated kinase, and transcription". Journal of Biomedical Science. 5 (1): 24–7. doi:10.1007/BF02253352. PMID 9570510.
Yankulov K, Bentley D (Jun 1998). "Transcriptional control: Tat cofactors and transcriptional elongation". Current Biology. 8 (13): R447–9. doi:10.1016/S0960-9822(98)70289-1. PMID 9651670.
Shiekhattar R, Mermelstein F, Fisher RP, Drapkin R, Dynlacht B, Wessling HC, Morgan DO, Reinberg D (Mar 1995). "Cdk-activating kinase complex is a component of human transcription factor TFIIH". Nature. 374 (6519): 283–7. doi:10.1038/374283a0. PMID 7533895.
Darbon JM, Devault A, Taviaux S, Fesquet D, Martinez AM, Galas S, Cavadore JC, Dorée M, Blanchard JM (Nov 1994). "Cloning, expression and subcellular localization of the human homolog of p40MO15 catalytic subunit of cdk-activating kinase". Oncogene. 9 (11): 3127–38. PMID 7936635.
Feaver WJ, Svejstrup JQ, Henry NL, Kornberg RD (Dec 1994). "Relationship of CDK-activating kinase and RNA polymerase II CTD kinase TFIIH/TFIIK". Cell. 79 (6): 1103–9. doi:10.1016/0092-8674(94)90040-X. PMID 8001136. Check date values in: |year= / |date= mismatch (help)
Fisher RP, Morgan DO (Aug 1994). "A novel cyclin associates with MO15/CDK7 to form the CDK-activating kinase". Cell. 78 (4): 713–24. doi:10.1016/0092-8674(94)90535-5. PMID 8069918.
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.
Perez JL, Shen X, Finkernagel S, Sciorra L, Jenkins NA, Gilbert DJ, Copeland NG, Wong TW (Jan 1994). "Identification and chromosomal mapping of a receptor tyrosine kinase with a putative phospholipid binding sequence in its ectodomain". Oncogene. 9 (1): 211–9. PMID 8302582.
Tassan JP, Jaquenoud M, Fry AM, Frutiger S, Hughes GJ, Nigg EA (Nov 1995). "In vitro assembly of a functional human CDK7-cyclin H complex requires MAT1, a novel 36 kDa RING finger protein". The EMBO Journal. 14 (22): 5608–17. PMC 394676. PMID 8521818. Check date values in: |year= / |date= mismatch (help)
Adamczewski JP, Rossignol M, Tassan JP, Nigg EA, Moncollin V, Egly JM (Apr 1996). "MAT1, cdk7 and cyclin H form a kinase complex which is UV light-sensitive upon association with TFIIH". The EMBO Journal. 15 (8): 1877–84. PMC 450106. PMID 8617234.
Blau J, Xiao H, McCracken S, O'Hare P, Greenblatt J, Bentley D (May 1996). "Three functional classes of transcriptional activation domain". Molecular and Cellular Biology. 16 (5): 2044–55. PMC 231191. PMID 8628270.
Reardon JT, Ge H, Gibbs E, Sancar A, Hurwitz J, Pan ZQ (Jun 1996). "Isolation and characterization of two human transcription factor IIH (TFIIH)-related complexes: ERCC2/CAK and TFIIH". Proceedings of the National Academy of Sciences of the United States of America. 93 (13): 6482–7. doi:10.1073/pnas.93.13.6482. PMC 39049. PMID 8692841.
Drapkin R, Le Roy G, Cho H, Akoulitchev S, Reinberg D (Jun 1996). "Human cyclin-dependent kinase-activating kinase exists in three distinct complexes". Proceedings of the National Academy of Sciences of the United States of America. 93 (13): 6488–93. doi:10.1073/pnas.93.13.6488. PMC 39050. PMID 8692842.
Kim KK, Chamberlin HM, Morgan DO, Kim SH (Oct 1996). "Three-dimensional structure of human cyclin H, a positive regulator of the CDK-activating kinase". Nature Structural Biology. 3 (10): 849–55. doi:10.1038/nsb1096-849. PMID 8836101.
Zhou Q, Sharp PA (Oct 1996). "Tat-SF1: cofactor for stimulation of transcriptional elongation by HIV-1 Tat". Science. 274 (5287): 605–10. doi:10.1126/science.274.5287.605. PMID 8849451.
Parada CA, Roeder RG (Nov 1996). "Enhanced processivity of RNA polymerase II triggered by Tat-induced phosphorylation of its carboxy-terminal domain". Nature. 384 (6607): 375–8. doi:10.1038/384375a0. PMID 8934526.
García-Martínez LF, Ivanov D, Gaynor RB (Mar 1997). "Association of Tat with purified HIV-1 and HIV-2 transcription preinitiation complexes". The Journal of Biological Chemistry. 272 (11): 6951–8. doi:10.1074/jbc.272.11.6951. PMID 9054383.
Poterszman A, Andersen G, Busso D, Rossignol M, Egly JM, Thierry JC (Mar 1997). "Expression in Escherichia coli: purification and characterization of cyclin H, a subunit of the human general transcription/DNA repair factor TFIIH". Protein Expression and Purification. 9 (2): 153–8. doi:10.1006/prep.1996.0693. PMID 9056480.
Marinoni JC, Roy R, Vermeulen W, Miniou P, Lutz Y, Weeda G, Seroz T, Gomez DM, Hoeijmakers JH, Egly JM (Mar 1997). "Cloning and characterization of p52, the fifth subunit of the core of the transcription/DNA repair factor TFIIH". The EMBO Journal. 16 (5): 1093–102. doi:10.1093/emboj/16.5.1093. PMC 1169708. PMID 9118947.
Andersen G, Busso D, Poterszman A, Hwang JR, Wurtz JM, Ripp R, Thierry JC, Egly JM, Moras D (Mar 1997). "The structure of cyclin H: common mode of kinase activation and specific features". The EMBO Journal. 16 (5): 958–67. doi:10.1093/emboj/16.5.958. PMC 1169696. PMID 9118957.

PDB gallery

1jkw: STRUCTURE OF CYCLIN MCS2

1kxu: CYCLIN H, A POSITIVE REGULATORY SUBUNIT OF CDK ACTIVATING KINASE

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Cyclin H

Function

Interactions

References

Further reading