Structure of PDB 2iuz Chain A

Receptor sequence
>2iuzA (length=395) [Search protein sequence]
ASSGYRSVVYFVNWAIYGRNHNPQDLPVERLTHVLYAFANVRPETGEVYM
TDSWADIEKHYPGDSWSDTGNNVYGCIKQLYLLKKQNRNLKVLLSIGGWT
YSPNFAPAASTDAGRKNFAKTAVKLLQDLGFDGLDIDWEYPENDQQANDF
VLLLKEVRTALDSYSAANAGGQHFLLTVASPAGPDKIKVLHLKDMDQQLD
FWNLMAYDYAGSFSSLSGHQANVYNDTSNPLSTPFNTQTALDLYRAGGVP
ANKIVLGMPLYGRSFANTDGPGKPYNGVGQGSWENGVWDYKALPQAGATE
HVLPDIMASYSYDATNKFLISYDNPQVANLKSGYIKSLGLGGAMWWDSSS
DKTGSDSLITTVVNALGGTGVFEQSQNELDYPVSQYDNLRNGMQT
3D structure
PDB2iuz Screening-Based Discovery and Structural Dissection of a Novel Family 18 Chitinase Inhibitor
ChainA
Resolution1.95 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) D173 D175 E177 Y245
Catalytic site (residue number reindexed from 1) D135 D137 E139 Y207
Enzyme Commision number 3.2.1.14: chitinase.
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 D1H A W52 F76 W137 T138 Y139 W384 W14 F38 W99 T100 Y101 W346 MOAD: Ki=2.8uM
PDBbind-CN: -logKd/Ki=5.55,Ki=2.8uM
BindingDB: IC50=4800nM
Gene Ontology
Molecular Function
GO:0004553 hydrolase activity, hydrolyzing O-glycosyl compounds
GO:0008061 chitin binding
Biological Process
GO:0005975 carbohydrate metabolic process

View graph for
Molecular Function

View graph for
Biological Process
External links
PDB RCSB:2iuz, PDBe:2iuz, PDBj:2iuz
PDBsum2iuz
PubMed16844689
UniProtQ873X9|CHIB1_ASPFM Endochitinase B1 (Gene Name=chiB1)

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