Structure of PDB 2gk1 Chain K Binding Site BS01

Receptor Information
>2gk1 Chain K (length=440) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
TLEKNVLVVSVVTPGCNQLPTLESVENYTLTINDDQCLLLSETVWGALRG
LETFSQLVWKSAEGTFFINKTEIEDFPRFPHRGLLLDTSRHYLPLSSILD
TLDVMAYNKLNVFHWHLVDDPSFPYESFTFPELMRKGSYNPVTHIYTAQD
VKEVIEYARLRGIRVLAEFDTPGHTLSWGPGIPGLLTPCYSGSEPSGTFG
PVNPSLNNTYEFMSTFFLEVSSVFPDFYLHLGGDEVDFTCWKSNPEIQDF
MRKKGFGEDFKQLESFYIQTLLDIVSSYGKGYVVWQEVFDNKVKIQPDTI
IQVWREDIPVNYMKELELVTKAGFRALLSAPWYLNRISYGPDWKDFYVVE
PLAFEGTPEQKALVIGGEACMWGEYVDNTNLVPRLWPRAGAVAERLWSNK
LTSDLTFAYERLSHFRCELLRRGVQAQPLNVGFCEQEFEQ
Ligand information
Ligand IDNGT
InChIInChI=1S/C8H13NO4S/c1-3-9-5-7(12)6(11)4(2-10)13-8(5)14-3/h4-8,10-12H,2H2,1H3/t4-,5-,6-,7-,8-/m1/s1
InChIKeyDRHXTSWSUAJOJZ-FMDGEEDCSA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.5.0CC1=NC2C(C(C(OC2S1)CO)O)O
ACDLabs 10.04N1=C(SC2OC(C(O)C(O)C12)CO)C
OpenEye OEToolkits 1.5.0CC1=N[C@@H]2[C@H]([C@@H]([C@H](O[C@@H]2S1)CO)O)O
CACTVS 3.341CC1=N[CH]2[CH](O)[CH](O)[CH](CO)O[CH]2S1
CACTVS 3.341CC1=N[C@@H]2[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]2S1
FormulaC8 H13 N O4 S
Name3AR,5R,6S,7R,7AR-5-HYDROXYMETHYL-2-METHYL-5,6,7,7A-TETRAHYDRO-3AH-PYRANO[3,2-D]THIAZOLE-6,7-DIOL
ChEMBLCHEMBL257158
DrugBankDB03747
ZINCZINC000016051892
PDB chain2gk1 Chain E Residue 530 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB2gk1 Crystallographic Structure of Human beta-Hexosaminidase A: Interpretation of Tay-Sachs Mutations and Loss of G(M2) Ganglioside Hydrolysis.
Resolution3.25 Å
Binding residue
(original residue number in PDB)		H262 D322 W373 W460 E462
Binding residue
(residue number reindexed from 1)		H174 D234 W285 W372 E374
Annotation score1
Binding affinityBindingDB: Ki=270nM
Enzymatic activity
Catalytic site (original residue number in PDB) D322 E323
Catalytic site (residue number reindexed from 1) D234 E235
Enzyme Commision number 3.2.1.52: beta-N-acetylhexosaminidase.
Gene Ontology
Molecular Function
GO:0004553 hydrolase activity, hydrolyzing O-glycosyl compounds
GO:0004563 beta-N-acetylhexosaminidase activity
Biological Process
GO:0005975 carbohydrate metabolic process

View graph for
Molecular Function
View graph for
Biological Process
External links
PDB RCSB:2gk1, PDBe:2gk1, PDBj:2gk1
PDBsum2gk1
PubMed16698036
UniProtP06865|HEXA_HUMAN Beta-hexosaminidase subunit alpha (Gene Name=HEXA)

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