Structure of PDB 1hp5 Chain A Binding Site BS01

Receptor Information
>1hp5 Chain A (length=499) Species: 1922 (Streptomyces plicatus) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
DRKAPVRPTPLDRVIPAPASVDPGGAPYRITRGTHIRVDDSREARRVGDY
LADLLRPATGYRLPVTAHGHGGIRLRLAGGPYGDEGYRLDSGPAGVTITA
RKAAGLFHGVQTLRQLLPPAVEKDSAQPGPWLVAGGTIEDTPRYAWRSAM
LDVSRHFFGVDEVKRYIDRVARYKYNKLHLHLSDDQGWRIAIDSWPRLAT
YGGSTEVGGGPGGYYTKAEYKEIVRYAASRHLEVVPEIDMPGHTNAALAS
YAELNCDGVAPPLYTGTKVGFSSLCVDKDVTYDFVDDVIGELAALTPGRY
LHIGGDEAHSTPKADFVAFMKRVQPIVAKYGKTVVGWHQLAGAEPVEGAL
VQYWGLDRTGDAEKAEVAEAARNGTGLILSPADRTYLDMKYTKDTPLGLS
WAGYVEVQRSYDWDPAGYLPGAPADAVRGVEAPLWTETLSDPDQLDYMAF
PRLPGVAELGWSPASTHDWDTYKVRLAAQAPYWEAAGIDFYRSPQVPWT
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 chain1hp5 Chain A Residue 511 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

[Spin on] [Spin off] [Reset]
[High quality] [Low quality]
[White background] [Black background]
[Spin on] [Spin off] [Reset]
[High quality] [Low quality]
[White background] [Black background]
PDB1hp5 Crystallographic evidence for substrate-assisted catalysis in a bacterial beta-hexosaminidase.
Resolution2.1 Å
Binding residue
(original residue number in PDB)		R162 H250 D313 E314 W344 W361 Y393 D395 W408 W442 E444
Binding residue
(residue number reindexed from 1)		R155 H243 D306 E307 W337 W354 Y386 D388 W401 W435 E437
Annotation score1
Binding affinityPDBbind-CN: -logKd/Ki=6.55,Ki=280nM
BindingDB: Ki=20000nM
Enzymatic activity
Catalytic site (original residue number in PDB) D313 E314
Catalytic site (residue number reindexed from 1) D306 E307
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
GO:0016787 hydrolase activity
Biological Process
GO:0005975 carbohydrate metabolic process
GO:0030203 glycosaminoglycan metabolic process
Cellular Component
GO:0016020 membrane

View graph for
Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:1hp5, PDBe:1hp5, PDBj:1hp5
PDBsum1hp5
PubMed11124970
UniProtO85361

[Back to BioLiP]