5swf

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The structure of the PP2A B56 subunit double phosphorylated BubR1 complexThe structure of the PP2A B56 subunit double phosphorylated BubR1 complex

Structural highlights

5swf is a 2 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
NonStd Res:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[2A5G_HUMAN] The B regulatory subunit might modulate substrate selectivity and catalytic activity, and also might direct the localization of the catalytic enzyme to a particular subcellular compartment. The PP2A-PPP2R5C holoenzyme may specifically dephosphorylate and activate TP53 and play a role in DNA damage-induced inhibition of cell proliferation. PP2A-PPP2R5C may also regulate the ERK signaling pathway through ERK dephosphorylation.[1] [2]

References

  1. Letourneux C, Rocher G, Porteu F. B56-containing PP2A dephosphorylate ERK and their activity is controlled by the early gene IEX-1 and ERK. EMBO J. 2006 Feb 22;25(4):727-38. Epub 2006 Feb 2. PMID:16456541 doi:http://dx.doi.org/10.1038/sj.emboj.7600980
  2. Li HH, Cai X, Shouse GP, Piluso LG, Liu X. A specific PP2A regulatory subunit, B56gamma, mediates DNA damage-induced dephosphorylation of p53 at Thr55. EMBO J. 2007 Jan 24;26(2):402-11. PMID:17245430 doi:http://dx.doi.org/10.1038/sj.emboj.7601519

5swf, resolution 2.82Å

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