Structure of PDB 6hgy Chain A Binding Site BS01

Receptor Information
>6hgy Chain A (length=215) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
APDSVDYRKKGYVTPVKNQGQCGSCWAFSSVGALEGQLKKKTGKLLNLSP
QNLVDCVSENDGCGGGYMTNAFQYVQKNRGIDSEDAYPYVGQEESCMYNP
TGKAAKCRGYREIPEGNEKALKRAVARVGPVSVAIDASLTSFQFYSKGVY
YDESCNSDNLNHAVLAVGYGIQKGNKHWIIKNSWGENWGNKGYILMARNK
NNACGIANLASFPKM
Ligand information
Ligand IDG4B
InChIInChI=1S/C43H61N5O9/c1-6-7-8-9-10-11-12-13-36(51)45-34(24-29-14-19-32(49)20-15-29)40(53)48-39(28(4)5)41(54)44-31-18-23-37(52)47-38(27(2)3)42(55)46-35(43(56)57-26-31)25-30-16-21-33(50)22-17-30/h11-12,14-17,19-22,27-28,31,34-35,38-39,49-50H,6-10,13,18,23-26H2,1-5H3,(H,44,54)(H,45,51)(H,46,55)(H,47,52)(H,48,53)/b12-11-/t31-,34+,35+,38+,39+/m1/s1
InChIKeyVEICWPPPDFDHMQ-GMWCJVCTSA-N
SMILES
SoftwareSMILES
CACTVS 3.385CCCCCCC=CCC(=O)N[CH](Cc1ccc(O)cc1)C(=O)N[CH](C(C)C)C(=O)N[CH]2CCC(=O)N[CH](C(C)C)C(=O)N[CH](Cc3ccc(O)cc3)C(=O)OC2
CACTVS 3.385CCCCCC\C=C/CC(=O)N[C@@H](Cc1ccc(O)cc1)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H]2CCC(=O)N[C@@H](C(C)C)C(=O)N[C@@H](Cc3ccc(O)cc3)C(=O)OC2
OpenEye OEToolkits 2.0.6CCCCCCC=CCC(=O)NC(Cc1ccc(cc1)O)C(=O)NC(C(C)C)C(=O)NC2CCC(=O)NC(C(=O)NC(C(=O)OC2)Cc3ccc(cc3)O)C(C)C
OpenEye OEToolkits 2.0.6CCCCCC/C=C\CC(=O)N[C@@H](Cc1ccc(cc1)O)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H]2CCC(=O)N[C@H](C(=O)N[C@H](C(=O)OC2)Cc3ccc(cc3)O)C(C)C
FormulaC43 H61 N5 O9
NameTHALASSOSPIRAMIDE C
ChEMBL
DrugBank
ZINC
PDB chain6hgy Chain A Residue 301 [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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PDB6hgy Total Synthesis of Covalent Cysteine Protease Inhibitor N-Desmethyl Thalassospiramide C and Crystallographic Evidence for Its Mode of Action.
Resolution2.2 Å
Binding residue
(original residue number in PDB)		G23 C25 G65 G66 Y67 N161
Binding residue
(residue number reindexed from 1)		G23 C25 G65 G66 Y67 N161
Annotation score1
Binding affinityPDBbind-CN: -logKd/Ki=8.52,IC50=3nM
Enzymatic activity
Catalytic site (original residue number in PDB) Q19 C25 H162 N182
Catalytic site (residue number reindexed from 1) Q19 C25 H162 N182
Enzyme Commision number 3.4.22.38: cathepsin K.
Gene Ontology
Molecular Function
GO:0008234 cysteine-type peptidase activity
Biological Process
GO:0006508 proteolysis

View graph for
Molecular Function
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Biological Process
External links
PDB RCSB:6hgy, PDBe:6hgy, PDBj:6hgy
PDBsum6hgy
PubMed30628449
UniProtP43235|CATK_HUMAN Cathepsin K (Gene Name=CTSK)

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