Structure of PDB 2a3e Chain B Binding Site BS01

Receptor Information
>2a3e Chain B (length=394) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
ASSGYRSVVYFVNWAIYGRNHNPQDLPVERLTHVLYAFANVRPETGEVYM
TDSWADIEKHYPGDSWSDTGNNVYGCIKQLYLLKKQNRNLKVLLSIGGWT
YSPNFAPAASTDAGRKNFAKTAVKLLQDLGFDGLDIDWEYPENDQQANDF
VLLLKEVRTALDSYSAANAGGQHFLLTVASPAGPDKIKVLHLKDMDQQLD
FWNLMAYDYAGSFSSLSGHQANVYNDTSNPLSTPFNTQTALDLYRAGGVP
ANKIVLGMPLYGRSFANTDGPGKPYNGVGQGSWENGVWDYKALPQAGATE
HVLPDIMASYSYDATNKFLISYDNPQVANLKSGYIKSLGLGGAMWWDSSS
DKTGSDSLITTVVNALGGTGVFEQSQNELDYPVSQYDNLRNGMQ
Ligand information
Ligand IDAMI
InChIInChI=1S/C9H16N2O4/c1-11(2)9-10-5-7(14)6(13)4(3-12)8(5)15-9/h4-8,12-14H,3H2,1-2H3/t4-,5-,6-,7-,8+/m1/s1
InChIKeyMKJAYSJDHSEFRI-PVFLNQBWSA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.5.0CN(C)C1=N[C@@H]2[C@H]([C@@H]([C@H]([C@@H]2O1)CO)O)O
OpenEye OEToolkits 1.5.0CN(C)C1=NC2C(C(C(C2O1)CO)O)O
ACDLabs 10.04N1=C(OC2C1C(O)C(O)C2CO)N(C)C
CACTVS 3.341CN(C)C1=N[CH]2[CH](O)[CH](O)[CH](CO)[CH]2O1
CACTVS 3.341CN(C)C1=N[C@@H]2[C@@H](O)[C@H](O)[C@@H](CO)[C@@H]2O1
FormulaC9 H16 N2 O4
NameALLOSAMIZOLINE
ChEMBLCHEMBL1230969
DrugBankDB04404
ZINCZINC000033821203
PDB chain2a3e Chain B Residue 2435 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB2a3e Methylxanthine drugs are chitinase inhibitors: investigation of inhibition and binding modes.
Resolution1.95 Å
Binding residue
(original residue number in PDB)		Y48 W137 D175 E177 M243 Y245 D246 W384
Binding residue
(residue number reindexed from 1)		Y10 W99 D137 E139 M205 Y207 D208 W346
Annotation score1
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.
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:2a3e, PDBe:2a3e, PDBj:2a3e
PDBsum2a3e
PubMed16183021
UniProtQ873X9|CHIB1_ASPFM Endochitinase B1 (Gene Name=chiB1)

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