Structure of PDB 3er3 Chain E Binding Site BS01

Receptor Information
>3er3 Chain E (length=330) Species: 5116 (Cryphonectria parasitica) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
STGSATTTPIDSLDDAYITPVQIGTPAQTLNLDFDTGSSDLWVFSSETTA
SEVDGQTIYTPSKSTTAKLLSGATWSISYGDGSSSSGDVYTDTVSVGGLT
VTGQAVESAKKVSSSFTEDSTIDGLLGLAFSTLNTVSPTQQKTFFDNAKA
SLDSPVFTADLGYHAPGTYNFGFIDTTAYTGSITYTAVSTKQGFWEWTST
GYAVGSGTFKSTSIDGIADTGTTLLYLPATVVSAYWAQVSGAKSSSSVGG
YVFPCSATLPSFTFGVGSARIVIPGDYIDFGPISTGSSSCFGGIQSSAGI
GINIFGDVALKAAFVVFNGATTPTLGFASK
Ligand information
Ligand ID0EL
InChIInChI=1S/C51H76N8O9/c1-33(2)25-37(45(61)55-39(23-15-16-24-52)46(62)58-43(49(65)66)28-36-21-13-8-14-22-36)29-44(60)40(26-34-17-9-6-10-18-34)56-48(64)42(30-38-31-53-32-54-38)57-47(63)41(27-35-19-11-7-12-20-35)59-50(67)68-51(3,4)5/h7-8,11-14,19-22,31-34,37,39-44,60H,6,9-10,15-18,23-30,52H2,1-5H3,(H,53,54)(H,55,61)(H,56,64)(H,57,63)(H,58,62)(H,59,67)(H,65,66)/p+2/t37-,39+,40+,41+,42+,43?,44+/m1/s1
InChIKeyYHLJEWZZOJLRNJ-OBSKRNKISA-P
SMILES
SoftwareSMILES
ACDLabs 10.04O=C(O)C(NC(=O)C(NC(=O)C(CC(C)C)CC(O)C(NC(=O)C(NC(=O)C(NC(=O)OC(C)(C)C)Cc1ccccc1)Cc2cnc[nH+]2)CC3CCCCC3)CCCC[NH3+])Cc4ccccc4
CACTVS 3.341CC(C)C[CH](C[CH](O)[CH](CC1CCCCC1)NC(=O)[CH](Cc2c[nH]c[nH+]2)NC(=O)[CH](Cc3ccccc3)NC(=O)OC(C)(C)C)C(=O)N[CH](CCCC[NH3+])C(=O)NC(Cc4ccccc4)C(O)=O
CACTVS 3.341CC(C)C[C@H](C[C@H](O)[C@H](CC1CCCCC1)NC(=O)[C@H](Cc2c[nH]c[nH+]2)NC(=O)[C@H](Cc3ccccc3)NC(=O)OC(C)(C)C)C(=O)N[C@@H](CCCC[NH3+])C(=O)NC(Cc4ccccc4)C(O)=O
FormulaC51 H78 N8 O9
Name6-ammonio-N-[(2R,4R,5R)-5-{[N-(tert-butoxycarbonyl)-L-phenylalanyl-3-(1H-imidazol-3-ium-4-yl)-L-alanyl]amino}-6-cyclohexyl-4-hydroxy-2-(2-methylpropyl)hexanoyl]-L-norleucylphenylalanine
ChEMBL
DrugBank
ZINC
PDB chain3er3 Chain E Residue 327 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB3er3 The Active Site of Aspartic Proteinases
Resolution2.0 Å
Binding residue
(original residue number in PDB)		D30 D32 G34 Y75 G76 D114 D215 G217 T218 T219 Y222
Binding residue
(residue number reindexed from 1)		D33 D35 G37 Y79 G80 D119 D219 G221 T222 T223 Y226
Annotation score1
Binding affinityMOAD: Ki=81nM
PDBbind-CN: -logKd/Ki=7.09,Ki=81nM
Enzymatic activity
Enzyme Commision number 3.4.23.22: endothiapepsin.
Gene Ontology
Molecular Function
GO:0004190 aspartic-type endopeptidase activity
Biological Process
GO:0006508 proteolysis

View graph for
Molecular Function
View graph for
Biological Process
External links
PDB RCSB:3er3, PDBe:3er3, PDBj:3er3
PDBsum3er3
PubMed6381096
UniProtP11838|CARP_CRYPA Endothiapepsin (Gene Name=EAPA)

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