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Keywords: Cdk1
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Journal Articles
J Cell Sci (2022) 135 (12): jcs259626.
Published: 21 June 2022
... work is properly attributed. Highlighted Article: CDK activity drives the eukaryotic cell cycle. We show that CDK activity is in surplus, and cells use this surplus to ensure mitotic completion despite CDK inhibition. Cyclin-dependent kinase CDK inhibitor Cdk1 Mitosis Kinase...
Includes: Supplementary data
Journal Articles
J Cell Sci (2021) 134 (16): jcs258645.
Published: 17 August 2021
... phosphoregulated. We found that Imp2 is endogenously phosphorylated on 28 sites within its IDR, with the bulk of phosphorylation being constitutive. In vitro , the casein kinase 1 (CK1) isoforms Hhp1 and Hhp2 can phosphorylate 17 sites, and Cdk1 (also known as Cdc2) can phosphorylate the remaining 11 sites...
Includes: Supplementary data
Journal Articles
J Cell Sci (2021) 134 (8): jcs244152.
Published: 22 April 2021
...Omeed Darweesh; Eman Al-Shehri; Hugo Falquez; Joachim Lauterwasser; Frank Edlich; Rajnikant Patel ABSTRACT In eukaryotes, entry into and exit from mitosis is regulated, respectively, by the transient activation and inactivation of Cdk1. Taxol, an anti-microtubule anti-cancer drug, prevents...
Includes: Supplementary data
Journal Articles
In collection:
Cytoskeleton
J Cell Sci (2021) 134 (4): jcs258356.
Published: 19 February 2021
... (S62) by CDK1 switches its substrate preference from TPX2 to GM130, thereby enabling competition-based activation. Importin α S62A mutation impedes local TPX2 activation and compromises astral microtubule formation, ultimately resulting in misoriented spindles. Blocking the GM130–importin α–TPX2...
Includes: Supplementary data
Journal Articles
J Cell Sci (2020) 133 (14): jcs243857.
Published: 31 July 2020
... it at the cell cortex. Pulling forces generated by cortical dynein orient the mitotic spindle. Cdk1-mediated phosphorylation of NuMA at threonine 2055 (T2055) negatively regulates its cortical localization. Thus, only NuMA not phosphorylated at T2055 localizes at the cell cortex. However, the identity...
Includes: Supplementary data
Journal Articles
J Cell Sci (2019) 132 (20): jcs236000.
Published: 28 October 2019
... stress, to harmonize proliferation with energy availability. Despite AMPK's emergent association with the cell cycle, it still has not been fully delineated how AMPK is regulated by upstream signaling pathways during mitosis. We report, for the first time, direct CDK1 phosphorylation of both...
Includes: Supplementary data
Journal Articles
J Cell Sci (2019) 132 (18): jcs233379.
Published: 26 September 2019
...Chenxi Zhou; Janelle L. Hancock; Kum Kum Khanna; Hayden A. Homer ABSTRACT During mitosis, anaphase is triggered by anaphase-promoting complex (APC)-mediated destruction of securin and cyclin B1, which leads to inactivation of cyclin-dependent kinase 1 (Cdk1). By regulating APC activity, the mitotic...
Includes: Supplementary data
Journal Articles
J Cell Sci (2018) 131 (5): jcs208397.
Published: 2 March 2018
... that, during mitosis progression, ARHGAP19 is sequentially phosphorylated by the RhoA-activated kinases ROCK1 and ROCK2 (hereafter ROCK) on serine residue 422, and by CDK1 on threonine residues 404 and 476. The phosphorylation of ARHGAP19 by ROCK occurs before mitosis onset and generates a binding site for 14...
Includes: Supplementary data
Journal Articles
J Cell Sci (2018) 131 (4): jcs210187.
Published: 22 February 2018
...) although control cells did so correctly ( Fig. S2D ). This explains why we did not observe anaphase or telophase cells following rapid SMC2 depletion. Typically, CDK1 as cells were treated with 2 µM 1NMPP1 for 4 h to accumulate cells in G 2 phase. 1NMPP1 is a bulky ATP analogue that reversibly...
Includes: Supplementary data
Journal Articles
J Cell Sci (2016) 129 (16): 3153–3166.
Published: 15 August 2016
... and Myt1 kinase, resulting in activation of cyclin-B–Cdk1, which then induces meiotic G2/M transition. Here, we show that cyclin-B–Cdk1 is partially activated after subthreshold hormonal stimuli, but this triggers negative feedback, resulting in dephosphorylation of Akt sites on Cdc25 and Myt1, thereby...
Includes: Supplementary data
Journal Articles
In collection:
Adhesion
J Cell Sci (2016) 129 (15): 2962–2971.
Published: 1 August 2016
... analysis of LAR-regulated phosphosites identified a node of cytoskeleton- and adhesion-related proteins centred on cyclin-dependent kinase-1 (CDK1). We found that loss of LAR activity resulted in reduced activity of CDK1, and that CDK1 activity was required for LAR-mediated focal adhesion complex formation...
Journal Articles
J Cell Sci (2016) 129 (7): 1340–1354.
Published: 1 April 2016
..., under the master control of Cdk1. During entry into mitosis, Cdk1, in collaboration with MASTL kinase, represses the activity of the major mitotic protein phosphatases, PP1 and PP2A, thereby ensuring mitotic substrates remain phosphorylated. For cells to complete and exit mitosis, these phosphorylation...
Includes: Supplementary data
Journal Articles
J Cell Sci (2015) 128 (22): 4083–4095.
Published: 15 November 2015
... to M phase transition, but the molecular mechanism underlying this recruitment remains unknown. In this study, we narrowed the translocation timing to prophase and prometaphase, and elucidated its molecular mechanism. We found that CDK1 phosphorylates Ser343 of ERK1c, thereby allowing the binding...
Includes: Supplementary data
Journal Articles
J Cell Sci (2015) 128 (14): 2482–2496.
Published: 15 July 2015
... acquire the competence to replicate DNA one hour after the first meiotic division by accumulating an essential factor of the replicative machinery, Cdc6. Here, we show that the turnover of Cdc6 is precisely regulated in oocytes to avoid inhibition of Cdk1. At meiosis resumption, Cdc6 is expressed...
Includes: Supplementary data
Journal Articles
J Cell Sci (2014) 127 (5): 1128–1137.
Published: 1 March 2014
... neck. A central player in this process is Iqg1, which promotes recruitment of actin to the myosin ring and links AMR assembly with that of septum-forming components. We observed early actin recruitment in response to inhibition of cyclin-dependent kinase 1 (Cdk1) activity, and we find that the Cdk1...
Includes: Supplementary data
Journal Articles
J Cell Sci (2013) 126 (17): 3916–3926.
Published: 1 September 2013
...Aude Dupré; Eulalie Buffin; Chloé Roustan; Angus C. Nairn; Catherine Jessus; Olivier Haccard Summary Entry into mitosis or meiosis relies on the coordinated action of kinases and phosphatases that ultimately leads to the activation of Cyclin-B–Cdk1, also known as MPF for M-phase promoting factor...
Includes: Supplementary data
Journal Articles
J Cell Sci (2012) 125 (13): 3091–3096.
Published: 1 July 2012
...Saravanan Palani; Franz Meitinger; Martin E. Boehm; Wolf D. Lehmann; Gislene Pereira Summary In Saccharomyces cerevisiae the Cdc14 phosphatase plays a well-established role in reverting phosphorylation events on substrates of the mitotic cyclin-dependent kinase (M-Cdk1), thereby promoting mitotic...
Includes: Supplementary data
Journal Articles
J Cell Sci (2011) 124 (14): 2323–2334.
Published: 15 July 2011
... ). In the case of one of these substrates, the Golgi matrix protein and vesicle-tethering factor GM130, dephosphorylation during anaphase at a conserved Cdk1 phosphorylation site has been shown to involve the PP2A–Bα (PPPR2A) holoenzymes ( Fig. 3D ) ( Lowe et al., 2000 ; Lowe et al., 1998 ). Intriguingly...
Journal Articles
J Cell Sci (2011) 124 (13): 2113–2119.
Published: 1 July 2011
...Makoto Matsuyama; Hidemasa Goto; Kousuke Kasahara; Yoshitaka Kawakami; Makoto Nakanishi; Tohru Kiyono; Naoki Goshima; Masaki Inagaki Chk1 inhibits the premature activation of the cyclin-B1–Cdk1. However, it remains controversial whether Chk1 inhibits Cdk1 in the centrosome or in the nucleus before...
Includes: Supplementary data
Journal Articles
J Cell Sci (2011) 124 (6): 873–878.
Published: 15 March 2011
... at Cdk1-specific sites located in its motor domain. Wild-type Cin8 binds to the early-anaphase spindles and detaches from the spindles at late anaphase, whereas the phosphorylation-deficient Cin8-3A mutant protein remains attached to a larger region of the spindle and spindle poles for prolonged periods...
Includes: Supplementary data