5K20: Caspase-7 S239E Phosphomimetic

Caspase-7 S239E Phosphomimetic. Determined by X-ray diffraction at 2.2 Å resolution. Released 11 Jan 2017.

Method
X-ray diffraction
Resolution
2.2 Å
Organism
Homo sapiens
Chains
4
Atoms
3,831
Mol. weight
71.05 kDa
Released
11 Jan 2017

Explore 5K20 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

5K20 contains 21 α-helices and 40 β-strands across 4 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 7 helices, 13 β-strands

ElementResiduesLengthSheet
β-strand5911
β-strand6612
β-strand68-7473
α-helix80-823
α-helix84-863
α-helix90-10415
β-strand106-11273
α-helix116-12813
β-strand13412
β-strand137-14263
β-strand145-14624
β-strand149-15244
β-strand155-15844
α-helix159-1646
α-helix168-1703
α-helix172-1743
β-strand179-18463
β-strand19015
β-strand19216
β-strand19517
Chain B: 3 helices, 8 β-strands
ElementResiduesLengthSheet
β-strand21318
β-strand219-22353
β-strand22915
β-strand23319
β-strand23919
α-helix240-25213
α-helix258-27215
α-helix280-2823
β-strand28616
β-strand290-29343
β-strand29811
Chain C: 8 helices, 11 β-strands
ElementResiduesLengthSheet
β-strand359110
β-strand366-37493
α-helix380-3823
α-helix384-3863
α-helix390-40415
β-strand406-41273
α-helix416-42813
β-strand434-44293
β-strand445-446211
β-strand449-452411
β-strand455-458411
α-helix459-4635
α-helix464-4663
α-helix468-4703
α-helix472-4743
β-strand479-48463
β-strand490112
β-strand492113
β-strand49518
Chain D: 3 helices, 8 β-strands
ElementResiduesLengthSheet
β-strand51317
β-strand519-52353
β-strand529112
β-strand533114
β-strand539114
α-helix540-55213
α-helix558-57215
α-helix580-5823
β-strand586113
β-strand590-59343
β-strand598110

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Caspase-7 large subunitA, Cprotein198Homo sapiensP55210 (AlphaFold model)
Caspase-7 small subunitB, Dprotein113Homo sapiensP55210 (AlphaFold model)
Sequence of entity 1 (A, C), FASTA
>5K20_1 Caspase-7 large subunit (chains A, C)
MADDQGCIEEQGVEDSANEDSVDAKPDRSSFVPSLFSKKKKNVTMRSIKTTRDRVPTYQY
NMNFEKLGKCIIINNKNFDKVTGMGVRNGTDKDAEALFKCFRSLGFDVIVYNDCSCAKMQ
DLLKKASEEDHTNAACFACILLSHGEENVIYGKDGVTPIKDLTAHFRGDRCKTLLEKPKL
FFIQACRGTELDDGIQAD
Sequence of entity 2 (B, D), FASTA
>5K20_2 Caspase-7 small subunit (chains B, D)
SGPINDTDANPRYKIPVEADFLFAYSTVPGYYSWRSPGRGEWFVQALCSILEEHGKDLEI
MQILTRVNDRVARHFESQSDDPHFHEKKQIPCVVSMLTKELYFSQLEHHHHHH

Primary citation

PAK2 Phosphorylation Inhibits Caspase-7 by Two Divergent Mechanisms: Slowing Activation and Blocking Substrate Binding. Eron, S.J., Hardy, J.A. To be published.

Other PDB entries of the same protein (UniProt P55210 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

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