Structure of PDB 3r91 Chain A

Receptor sequence
>3r91A (length=207) Species: 9606 (Homo sapiens) [Search protein sequence]
VETFAFQAEIAQLMSLIINTFYSNKEIFLRELISNSSDALDKIRYESLTD
PSKLDSGKELHINLIPNKQDRTLTIVDTGIGMTKADLINNLGTIAKSGTK
AFMEALQAGADISMIGQFGVGFYSAYLVAEKVTVITKHNDDEQYAWESSA
GGSFTVRTDTGEPMGRGTKVILHLKEDQTEYLEERRIKEIVKKHSQFIGY
PITLFVE
3D structure
PDB3r91 Macrocyclic lactams as potent Hsp90 inhibitors with excellent tumor exposure and extended biomarker activity.
ChainA
Resolution1.579 Å
3D
structure
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Enzymatic activity
Enzyme Commision number 3.6.4.10: non-chaperonin molecular chaperone ATPase.
Interaction with ligand
Site
#
Ligand Ligand
chain
Binding residues on receptor
(original residue number in PDB)
Binding residues on receptor
(residue number reindexed from 1)
Binding affinity
BS01 06H A N51 A55 K58 M98 L107 F138 Y139 W162 N35 A39 K42 M82 L91 F122 Y123 W146 MOAD: ic50=0.092uM
PDBbind-CN: -logKd/Ki=7.04,IC50=92nM
Gene Ontology
Molecular Function
GO:0005524 ATP binding
GO:0016887 ATP hydrolysis activity
GO:0051082 unfolded protein binding
GO:0140662 ATP-dependent protein folding chaperone
Biological Process
GO:0006457 protein folding

View graph for
Molecular Function

View graph for
Biological Process
External links
PDB RCSB:3r91, PDBe:3r91, PDBj:3r91
PDBsum3r91
PubMed21515049
UniProtP07900|HS90A_HUMAN Heat shock protein HSP 90-alpha (Gene Name=HSP90AA1)

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