Serine/threonine protein kinase
From Proteopedia
Serine/threonine protein kinase Chk1 (Chk1) phosphorylates cdc25A, cdc25B and cdc25C. Upon phosphorylation, cdc25 binds adaptor protein and the cell is prevented from entering mitosis. Chk2 phosphorylates cdc25C at Ser-216.
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3D structures of serine/threonine protein kinase
Updated December 2011
Chk1
1nvq, 1nvr – hChk1 kinase domain+ peptide + saurosporine – human
1nvs, 1zys - hChk1 kinase domain + peptide + inhibitor
2cgu, 2cgv, 2cgw, 2cgx, 2c3j, 2c3k, 2c3l, 2br1, 2brb, 2brg, 2brh, 2brm, 2brn, 2bro, 2ayp, 2gdo, 2ghg, 2hog, 2ywp, 2hxl, 2hxq, 2hy0, 2r0u, 2e9n, 2e9o, 2e9p, 2e9u, 2e9v, 2qhm, 2qhn, 3f9n, 2wmq, 2wmr, 2wms, 2wmt, 2wmu, 2wmv, 2wmx, 3jvr, 3jvs, 2xey, 2xf0, 2xez, 2x8d, 2x8e, 2x8i, 3ot3, 3ot8, 3pa3, 3pa4, 3pa5, 3nlb - hChk1 kinase domain + inhibitor
Chk2
1gxc – hChk2 phosphothreonine-binding domain + phosphopeptide
2cn5 – hChk2 kinase domain + ADP
2cn8 – hChk2 kinase domain + inhibitor
2w0j, 2w7x, 2wtc, 2wtd, 2xbj, 2xm8, 2xm9, 2yiq, 2yir, 2yit - hChk2 kinase domain + inhibitor
3i6u, 3i6w – hChk2 residues 84-502 (mutant)
Rac-β hChk
[[1gzk, 1gzn, 1gzo – Rac-β hChk kinase domain
1p6s - Rac-β hChk pleckstrin homology domain - NMR
1o6k - Rac-β hChk kinase domain + GSK3 peptide + AMPPNP
1o6l - Rac-β hChk kinase domain (mutant) + GSK3 peptide + AMPPNP
Various Chk
1c1y – hChk proto oncogene kinase domain + Ras-related protein Rap
2xiy, 2xiz, 2xj0 - hChk proto oncogene Pim-1 kinase domain
1u5q, 1u5r – rChk Tao2 kinase domain – rat
2cos – Chk Lats2 – mouse – NMR
2xik – hChk 25
3hgk – Chk Pto + effector protein AVRPTOB – Currant tomato
3ori, 3ork, 3orl, 3orm, 3oro, 3orp, 3ort - MtChk kinase domain (mutant) – Mycobacterium tuberculosis
3ouv - MtChk extracellular domain
