Cyclin E:CDK2-mediated phosphorylation of RB1

Stable Identifier
Reaction [transition]
Homo sapiens
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Cyclin E (CCNE1 or CCNE2) forms a complex with CDK2 and collaborates with the cyclin D-dependent kinases CDK4 and CDK6 in phosphorylating RB1 (Kelly et al.1998, Adams et al.1999). CDK4/CDK6-mediated monophosphorylation of RB1 is a pre-requisite for hyperphosphorylation and full inactivation of RB1 mediated by the CCNE:CDK2 complex (Connell-Crowley et al. 1997, Lundberg and Weinberg 1998, Brown et al. 1999, Harbour et al. 1999, Yu et al. 2000, Ezhevsky et al. 2001), with monophosphorylated RB1 being phosphorylated on 14 CDK sites out of 16 predicted sites (Narasimha et al. 2014).

Literature References
PubMed ID Title Journal Year
11032757 Downregulation of cyclin D1 alters cdk 4- and cdk 2-specific phosphorylation of retinoblastoma protein

Yu, B, Lane, ME, Pestell, RG, Albanese, C, Wadler, S

Mol. Cell Biol. Res. Commun. 2000
11416152 Differential regulation of retinoblastoma tumor suppressor protein by G(1) cyclin-dependent kinase complexes in vivo

Ezhevsky, SA, Ho, A, Becker-Hapak, M, Davis, PK, Dowdy, SF

Mol. Cell. Biol. 2001
9891042 Retinoblastoma protein contains a C-terminal motif that targets it for phosphorylation by cyclin-cdk complexes

Adams, PD, Li, X, Sellers, WR, Baker, KB, Leng, X, Harper, JW, Taya, Y, Kaelin WG, Jr

Mol Cell Biol 1999
24876129 Cyclin D activates the Rb tumor suppressor by mono-phosphorylation

Narasimha, AM, Kaulich, M, Shapiro, GS, Choi, YJ, Sicinski, P, Dowdy, SF

Elife 2014
9190208 Cyclin D1/Cdk4 regulates retinoblastoma protein-mediated cell cycle arrest by site-specific phosphorylation

Connell-Crowley, L, Harper, JW, Goodrich, DW

Mol Biol Cell 1997
9482921 Identification of a substrate-targeting domain in cyclin E necessary for phosphorylation of the retinoblastoma protein

Kelly, BL, Wolfe, KG, Roberts, JM

Proc Natl Acad Sci U S A 1998
10207050 Cumulative effect of phosphorylation of pRB on regulation of E2F activity

Brown, VD, Phillips, RA, Gallie, BL

Mol. Cell. Biol. 1999
9447971 Functional inactivation of the retinoblastoma protein requires sequential modification by at least two distinct cyclin-cdk complexes

Lundberg, AS, Weinberg, RA

Mol. Cell. Biol. 1998
10499802 Cdk phosphorylation triggers sequential intramolecular interactions that progressively block Rb functions as cells move through G1

Harbour, JW, Luo, RX, Dei Santi, A, Postigo, AA, Dean, DC

Cell 1999
Participant Of
Catalyst Activity
Catalyst Activity
cyclin-dependent protein serine/threonine kinase activity of CCNE:p-T160-CDK2:hypophosphorylated RB1 [nucleoplasm]
Physical Entity
Orthologous Events
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