Entry
Name
Cell cycle
Description
Mitotic cell cycle progression is accomplished through a reproducible sequence of events, DNA replication (S phase) and mitosis (M phase) separated temporally by gaps known as G1 and G2 phases. Cyclin-dependent kinases (CDKs) are key regulatory enzymes, each consisting of a catalytic CDK subunit and an activating cyclin subunit. CDKs regulate the cell's progression through the phases of the cell cycle by modulating the activity of key substrates. Downstream targets of CDKs include transcription factor E2F and its regulator Rb. Precise activation and inactivation of CDKs at specific points in the cell cycle are required for orderly cell division. Cyclin-CDK inhibitors (CKIs), such as p16Ink4a, p15Ink4b, p27Kip1, and p21Cip1, are involved in the negative regulation of CDK activities, thus providing a pathway through which the cell cycle is negatively regulated.
Eukaryotic cells respond to DNA damage by activating signaling pathways that promote cell cycle arrest and DNA repair. In response to DNA damage, the checkpoint kinase ATM phosphorylates and activates Chk2, which in turn directly phosphorylates and activates p53 tumor suppressor protein. p53 and its transcriptional targets play an important role in both G1 and G2 checkpoints. ATR-Chk1-mediated protein degradation of Cdc25A protein phosphatase is also a mechanism conferring intra-S-phase checkpoint activation.
Class
Cellular Processes; Cell growth and death
BRITE hierarchy
Pathway map
Ortholog table
Other DBs
Orthology
K04503 G1/S-specific cyclin-D1
K10151 G1/S-specific cyclin-D2
K10152 G1/S-specific cyclin-D3
K06618 retinoblastoma-associated protein
K04681 retinoblastoma-like protein 1
K16332 retinoblastoma-like protein 2
K17454 transcription factor E2F1
K09389 transcription factor E2F2
K06620 transcription factor E2F3
K04682 transcription factor E2F4/5
K04683 transcription factor Dp-1
K09392 transcription factor Dp-2
K13375 transforming growth factor beta-1
K13376 transforming growth factor beta-2
K13377 transforming growth factor beta-3
K04500 mothers against decapentaplegic homolog 2
K23605 mothers against decapentaplegic homolog 3
K04501 mothers against decapentaplegic homolog 4
K04377 Myc proto-oncogene protein
K10500 zinc finger and BTB domain-containing protein 17
K06621 cyclin-dependent kinase inhibitor 2A
K04685 cyclin-dependent kinase inhibitor 2B
K06622 cyclin-dependent kinase inhibitor 2C
K06623 cyclin-dependent kinase inhibitor 2D
K06624 cyclin-dependent kinase inhibitor 1B
K09993 cyclin-dependent kinase inhibitor 1C
K06625 cyclin-dependent kinase inhibitor 1A
K06626 G1/S-specific cyclin-E1
K03094 S-phase kinase-associated protein 1
K03875 F-box and leucine-rich repeat protein 1 (S-phase kinase-associated protein 2)
K02213 cell division control protein 6
K10727 chromatin licensing and DNA replication factor 1
K02603 origin recognition complex subunit 1
K02604 origin recognition complex subunit 2
K02605 origin recognition complex subunit 3
K02606 origin recognition complex subunit 4
K02607 origin recognition complex subunit 5
K02608 origin recognition complex subunit 6
K06628 cell division control protein 45
K05868 G2/mitotic-specific cyclin-B1
K21770 G2/mitotic-specific cyclin-B2
K21771 G2/mitotic-specific cyclin-B3
K16197 14-3-3 protein beta/theta/zeta
K16198 14-3-3 protein gamma/eta
K06633 membrane-associated tyrosine- and threonine-specific cdc2-inhibitory kinase [EC:2.7.11.1 ]
K03348 anaphase-promoting complex subunit 1
K03349 anaphase-promoting complex subunit 2
K03350 anaphase-promoting complex subunit 3
K03351 anaphase-promoting complex subunit 4
K03352 anaphase-promoting complex subunit 5
K03353 anaphase-promoting complex subunit 6
K03354 anaphase-promoting complex subunit 7
K03355 anaphase-promoting complex subunit 8
K03357 anaphase-promoting complex subunit 10
K03358 anaphase-promoting complex subunit 11
K03359 anaphase-promoting complex subunit 12
K12456 anaphase-promoting complex subunit 13
K25228 anaphase-promoting complex subunit 15
K25229 anaphase-promoting complex subunit 16
K03363 cell division cycle 20, cofactor of APC complex
K06636 structural maintenance of chromosome 1
K06669 structural maintenance of chromosome 3 (chondroitin sulfate proteoglycan 6)
K06670 cohesin complex subunit SCC1
K06671 cohesin complex subunit SA-1/2
K10779 transcriptional regulator ATRX
K06672 cohesin loading factor subunit SCC2
K11266 MAternally affected uncoordination
K11268 N-acetyltransferase [EC:2.3.1.-]
K11267 sister chromatid cohesion protein PDS5
K25163 wings apart-like protein
K04382 serine/threonine-protein phosphatase 2A catalytic subunit [EC:3.1.3.16 ]
K03456 serine/threonine-protein phosphatase 2A regulatory subunit A
K11584 serine/threonine-protein phosphatase 2A regulatory subunit B'
K11547 kinetochore protein NDC80
K06679 mitotic spindle assembly checkpoint protein MAD1
K02537 mitotic spindle assembly checkpoint protein MAD2
K13728 mitotic spindle assembly checkpoint protein MAD2B
K06637 mitotic checkpoint serine/threonine-protein kinase BUB1 beta [EC:2.7.11.1 ]
K02180 cell cycle arrest protein BUB3
K22399 pachytene checkpoint protein 2
K03364 cell division cycle 20-like protein 1, cofactor of APC complex
K04402 growth arrest and DNA-damage-inducible protein
K04802 proliferating cell nuclear antigen
Reference
Authors
Matsuoka S, Yamaguchi M, Matsukage A
Title
D-type cyclin-binding regions of proliferating cell nuclear antigen.
Journal
J Biol Chem 269:11030-6 (1994)
Reference
Authors
Welch PJ, Wang JY
Title
A C-terminal protein-binding domain in the retinoblastoma protein regulates nuclear c-Abl tyrosine kinase in the cell cycle.
Journal
Reference
Authors
Macaluso M, Montanari M, Giordano A
Title
Rb family proteins as modulators of gene expression and new aspects regarding the interaction with chromatin remodeling enzymes.
Journal
Reference
Authors
Cobrinik D
Title
Pocket proteins and cell cycle control.
Journal
Reference
Authors
Boutros R, Lobjois V, Ducommun B
Title
CDC25 phosphatases in cancer cells: key players? Good targets?
Journal
Reference
Authors
Diehl JA, Cheng M, Roussel MF, Sherr CJ
Title
Glycogen synthase kinase-3beta regulates cyclin D1 proteolysis and subcellular localization.
Journal
Reference
Authors
Klein EA, Assoian RK
Title
Transcriptional regulation of the cyclin D1 gene at a glance.
Journal
Reference
Authors
Sherr CJ, Roberts JM
Title
CDK inhibitors: positive and negative regulators of G1-phase progression.
Journal
Reference
Authors
Shi Y, Massague J.
Title
Mechanisms of TGF-beta signaling from cell membrane to the nucleus.
Journal
Reference
Authors
Kamura T, Hara T, Kotoshiba S, Yada M, Ishida N, Imaki H, Hatakeyama S, Nakayama K, Nakayama KI
Title
Degradation of p57Kip2 mediated by SCFSkp2-dependent ubiquitylation.
Journal
Reference
Authors
Bond M, Sala-Newby GB, Wu YJ, Newby AC
Title
Biphasic effect of p21Cip1 on smooth muscle cell proliferation: role of PI 3-kinase and Skp2-mediated degradation.
Journal
Reference
Authors
Harris SL, Levine AJ.
Title
The p53 pathway: positive and negative feedback loops.
Journal
Reference
Authors
Vogelstein B, Lane D, Levine AJ
Title
Surfing the p53 network.
Journal
Reference
Authors
Smith ML, Chen IT, Zhan Q, Bae I, Chen CY, Gilmer TM, Kastan MB, O'Connor PM, Fornace AJ Jr
Title
Interaction of the p53-regulated protein Gadd45 with proliferating cell nuclear antigen.
Journal
Reference
Authors
Petersen BO, Lukas J, Sorensen CS, Bartek J, Helin K
Title
Phosphorylation of mammalian CDC6 by cyclin A/CDK2 regulates its subcellular localization.
Journal
Reference
Authors
Sheu YJ, Stillman B
Title
Cdc7-Dbf4 phosphorylates MCM proteins via a docking site-mediated mechanism to promote S phase progression.
Journal
Reference
Authors
Martinez AM, Afshar M, Martin F, Cavadore JC, Labbe JC, Doree M
Title
Dual phosphorylation of the T-loop in cdk7: its role in controlling cyclin H binding and CAK activity.
Journal
Reference
Authors
Lolli G, Johnson LN
Title
CAK-Cyclin-dependent Activating Kinase: a key kinase in cell cycle control and a target for drugs?
Journal
Reference
Authors
Musacchio A, Salmon ED
Title
The spindle-assembly checkpoint in space and time.
Journal
Reference
Authors
Uhlmann F
Title
Chromosome cohesion and separation: from men and molecules.
Journal
Reference
Authors
Stegmeier F, Amon A
Title
Closing mitosis: the functions of the Cdc14 phosphatase and its regulation.
Journal
Reference
Authors
Moustakas A, Kardassis D
Title
Regulation of the human p21/WAF1/Cip1 promoter in hepatic cells by functional interactions between Sp1 and Smad family members.
Journal
Reference
Authors
de Boer HR, Guerrero Llobet S, van Vugt MA
Title
Controlling the response to DNA damage by the APC/C-Cdh1.
Journal
Reference
Authors
Qiao X, Zhang L, Gamper AM, Fujita T, Wan Y
Title
APC/C-Cdh1: from cell cycle to cellular differentiation and genomic integrity.
Journal
Related pathway
ko04120 Ubiquitin mediated proteolysis
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