Structure of PDB 4ca8 Chain A Binding Site BS01

Receptor Information
>4ca8 Chain A (length=598) Species: 7227 (Drosophila melanogaster) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
ALVKEEIQAKEYLENLNKELAKRTNVETEAAWAYGSNITDENEKKKNEIS
AELAKFMKEVASDTTKFQWRSYQSEDLKRQFKALTKLGYAALPEDDYAEL
LDTLSAMESNFAKVKVCDYKDSTKCDLALDPEIEEVISKSRDHEELAYYW
REFYDKAGTAVRSQFERYVELNTKAAKLNNFTSGAEAWLDEYEDDTFEQQ
LEDIFADIRPLYQQIHGYVRFRLRKHYGDAVVSETGPIPMHLLGNMWAQQ
WSEIADIVSPFPEKPLVDVSAEMEKQGYTPLKMFQMGDDFFTSMNLTKLP
QDFWDKSIIEKPTDGRDLVCHASAWDFYLTDDVRIKQCTRVTQDQLFTVH
HELGHIQYFLQYQHQPFVYRTGANPGFHEAVGDVLSLSVSTPKHLEKIGL
LKDYVRDDEARINQLFLTALDKIVFLPFAFTMDKYRWSLFRGEVDKANWN
CAFWKLRDEYSGIEPPVVRSEKDFDAPAKYHISADVEYLRYLVSFIIQFQ
FYKSACIKAGQYDPDNVELPLDNCDIYGSAAAGAAFHNMLSMGASKPWPD
ALEAFNGERIMSGKAIAEYFEPLRVWLEAENIKNNVHIGWTTSNKCVS
Ligand information
Ligand ID3ES
InChIInChI=1S/C38H38N3O9P/c42-31-18-16-27(17-19-31)20-34(37(44)45)39-36(43)30(22-32-23-33(41-50-32)29-14-8-3-9-15-29)25-51(47,48)35(21-26-10-4-1-5-11-26)40-38(46)49-24-28-12-6-2-7-13-28/h1-19,23,30,34-35,42H,20-22,24-25H2,(H,39,43)(H,40,46)(H,44,45)(H,47,48)/t30-,34-,35+/m0/s1
InChIKeyZPFSKFCSVXPMBD-PFESQZPFSA-N
SMILES
SoftwareSMILES
CACTVS 3.352OC(=O)[CH](Cc1ccc(O)cc1)NC(=O)[CH](Cc2onc(c2)c3ccccc3)C[P](O)(=O)[CH](Cc4ccccc4)NC(=O)OCc5ccccc5
CACTVS 3.352OC(=O)[C@H](Cc1ccc(O)cc1)NC(=O)[C@@H](Cc2onc(c2)c3ccccc3)C[P](O)(=O)[C@H](Cc4ccccc4)NC(=O)OCc5ccccc5
OpenEye OEToolkits 1.6.1c1ccc(cc1)CC(NC(=O)OCc2ccccc2)P(=O)(CC(Cc3cc(no3)c4ccccc4)C(=O)NC(Cc5ccc(cc5)O)C(=O)O)O
OpenEye OEToolkits 1.6.1c1ccc(cc1)C[C@H](NC(=O)OCc2ccccc2)[P@](=O)(C[C@H](Cc3cc(no3)c4ccccc4)C(=O)N[C@@H](Cc5ccc(cc5)O)C(=O)O)O
FormulaC38 H38 N3 O9 P
Name[(2S)-2-({3-[HYDROXYL(2-PHENYL-(1R)-1-{[(BENZYLOXY)[(2S)-2-({3-[HYDROXYL(2-PHENYL-(1R)-1-CARBONYL]-AMINO}ETHYL)PHOSPHINYL]-2-[(3-PHENYLISOXAZOL-5-YL)METHYL]-1-OXO-PROPYL}AMINO)-3-(4-HYDROXY-PHENYL)
ChEMBLCHEMBL570953
DrugBank
ZINC
PDB chain4ca8 Chain A Residue 1615 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB4ca8 Crystal Structures of Highly Specific Phosphinic Tripeptide Enantiomers in Complex with the Angiotensin-I Converting Enzyme.
Resolution1.99 Å
Binding residue
(original residue number in PDB)		Q266 H337 A338 S339 T364 H367 E368 H371 F375 H394 D399 K495 H497 V502 Y504 Y507 F511
Binding residue
(residue number reindexed from 1)		Q250 H321 A322 S323 T348 H351 E352 H355 F359 H378 D383 K479 H481 V486 Y488 Y491 F495
Annotation score1
Binding affinityMOAD: Ki=120nM
PDBbind-CN: -logKd/Ki=6.68,Ki=210nM
Enzymatic activity
Catalytic site (original residue number in PDB) H337 A338 H367 E368 H371 E395 H497 Y507
Catalytic site (residue number reindexed from 1) H321 A322 H351 E352 H355 E379 H481 Y491
Enzyme Commision number 3.4.15.1: peptidyl-dipeptidase A.
Gene Ontology
Molecular Function
GO:0008237 metallopeptidase activity
GO:0008241 peptidyl-dipeptidase activity
Biological Process
GO:0006508 proteolysis
Cellular Component
GO:0016020 membrane

View graph for
Molecular Function
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Biological Process
View graph for
Cellular Component
External links
PDB RCSB:4ca8, PDBe:4ca8, PDBj:4ca8
PDBsum4ca8
PubMed24289879
UniProtQ10714|ACE_DROME Angiotensin-converting enzyme (Gene Name=Ance)

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