Structure of PDB 1hkj Chain A Binding Site BS01

Receptor Information
>1hkj Chain A (length=365) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
AKLVCYFTNWAQYRQGEARFLPKDLDPSLCTHLIYAFAGMTNHQLSTTEW
NDETLYQEFNGLKKMNPKLKTLLAIGGWNFGTQKFTDMVATANNRQTFVN
SAIRFLRKYSFDGLDLDWEYPGSQGSPAVDKERFTTLVQDLANAFQQEAQ
TSGKERLLLSAAVPAGQTYVDAGYEVDKIAQNLDFVNLMAYDFHGSWEKV
TGHNSPLYKRQEQSGAAASLNVDAAVQQWLQKGTPASKLILGMPTYGRSF
TLASSSDTRVGAPATGSGTPGPFTKEGGMLAYYEVCSWKGATKQRIQDQK
VPYIFRDNQWVGFDDVESFKTKVSYLKQKGLGGAMVWALDLDDFAGFSCN
QGRYPLIQTLRQELS
Ligand information
Ligand IDNA1
InChIInChI=1S/C9H17NO6/c1-4(11)10-6-8(13)7(12)5(3-15-2)16-9(6)14/h5-9,12-14H,3H2,1-2H3,(H,10,11)/t5-,6-,7-,8+,9?/m1/s1
InChIKeyKDTVUHXJRZVEIF-NBTWYFBKSA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.5.0CC(=O)N[C@@H]1[C@@H]([C@@H]([C@H](O[C@@H]1O)COC)O)O
OpenEye OEToolkits 1.5.0CC(=O)NC1C(C(C(OC1O)COC)O)O
CACTVS 3.341COC[CH]1O[CH](O)[CH](NC(C)=O)[CH](O)[CH]1O
CACTVS 3.341COC[C@H]1O[C@H](O)[C@H](NC(C)=O)[C@H](O)[C@@H]1O
ACDLabs 10.04O=C(NC1C(O)C(O)C(OC1O)COC)C
FormulaC9 H17 N O6
Name2-acetamido-2-deoxy-6-O-methyl-alpha-D-allopyranose;
METHYL N-ACETYL ALLOSAMINE;
2-(ACETYLAMINO)-2-DEOXY-6-O-METHYL-ALPHA-D-ALLOPYRANOSE;
2-acetamido-2-deoxy-6-O-methyl-alpha-D-allose;
2-acetamido-2-deoxy-6-O-methyl-D-allose;
2-acetamido-2-deoxy-6-O-methyl-allose
ChEMBL
DrugBank
ZINC
PDB chain1hkj Chain B Residue 2 [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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PDB1hkj Crystal Structures of Allosamidin Derivatives in Complex with Human Macrophage Chitinase
Resolution2.6 Å
Binding residue
(original residue number in PDB)
W31 N100 E297
Binding residue
(residue number reindexed from 1)
W10 N79 E276
Annotation score1
Binding affinityPDBbind-CN: -logKd/Ki=8.59,IC50=2.6nM
Enzymatic activity
Catalytic site (original residue number in PDB) D136 D138 E140 Y212
Catalytic site (residue number reindexed from 1) D115 D117 E119 Y191
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

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Molecular Function

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Biological Process
External links
PDB RCSB:1hkj, PDBe:1hkj, PDBj:1hkj
PDBsum1hkj
PubMed12639956
UniProtQ13231|CHIT1_HUMAN Chitotriosidase-1 (Gene Name=CHIT1)

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