Structure of PDB 3l4z Chain A Binding Site BS01

Receptor Information
>3l4z Chain A (length=863) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
VNELERINCIPDQPPTKATCDQRGCCWNPQGAVSVPWCYYSKNHSYHVEG
NLVNTNAGFTARLKNLPSSPVFGSNVDNVLLTAEYQTSNRFHFKLTDQTN
NRFEVPHEHVQSFSGNAAASLTYQVEISRQPFSIKVTRRSNNRVLFDSSI
GPLLFADQFLQLSTRLPSTNVYGLGEHVHQQYRHDMNWKTWPIFNRDTTP
NGNGTNLYGAQTFFLCLEDASGLSFGVFLMNSNAMEVVLQPAPAITYRTI
GGILDFYVFLGNTPEQVVQEYLELIGRPALPSYWALGFHLSRYEYGTLDN
MREVVERNRAAQLPYDVQHADIDYMDERRDFTYDSVDFKGFPEFVNELHN
NGQKLVIIVDPAISNNSSSSKPYGPYDRGSDMKIWVNSSDGVTPLIGEVW
PGQTVFPDYTNPNCAVWWTKEFELFHNQVEFDGIWIDMNEVSNFVDGSVS
GCSTNNLNNPPFTPRILDGYLFCKTLCMDAVQHWGKQYDIHNLYGYSMAV
ATAEAAKTVFPNKRSFILTRSTFAGSGKFAAHWLGDNTATWDDLRWSIPG
VLEFNLFGIPMVGPDICGFALDTPEELCRRWMQLGAFYPFSRNHNGQGYK
DQDPASFGADSLLLNSSRHYLNIRYTLLPYLYTLFFRAHSRGDTVARPLL
HEFYEDNSTWDVHQQFLWGPGLLITPVLDEGAEKVMAYVPDAVWYDYETG
SQVRWRKQKVEMELPGDKIGLHLRGGYIFPTQQPNTTTLASRKNPLGLII
ALDENKEAKGELFWDDGETKDTVANKVYLLCEFSVTQNRLEVNISQSTYK
DPNNLAFNEIKILGTEEPSNVTVKHNGVPSTSPTVTYDSNLKVAIITDID
LLLGEAYTVEWAH
Ligand information
Ligand IDSSD
InChIInChI=1S/C9H20O9S2/c10-1-7(18-20(15,16)17)5(12)3-19-4-6(13)9(14)8(19)2-11/h5-14H,1-4H2,(H2-,15,16,17)/p-2/t5-,6+,7+,8+,9-,19+/m0/s1
InChIKeyNYHLFUZUGSMDBR-ITGKUZSGSA-L
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.5.0C1[C@H]([C@@H]([C@H]([S@@+]1C[C@@H]([C@@H](CO)OS([O-])([O-])[O-])O)CO)O)O
CACTVS 3.341OC[C@@H](O[S]([O-])([O-])[O-])[C@@H](O)C[S@+]1C[C@@H](O)[C@H](O)[C@H]1CO
ACDLabs 10.04[O-]S([O-])([O-])OC(CO)C(O)C[S+]1C(CO)C(O)C(O)C1
OpenEye OEToolkits 1.5.0C1C(C(C([S+]1CC(C(CO)OS([O-])([O-])[O-])O)CO)O)O
CACTVS 3.341OC[CH](O[S]([O-])([O-])[O-])[CH](O)C[S+]1C[CH](O)[CH](O)[CH]1CO
FormulaC9 H18 O9 S2
Name1,4-DIDEOXY-1,4-[[2R,3R)-2,4-DIHYDROXY-3-(SULFOXY)BUTYL]EPISULFONIUMYLIDENE]-D-ARABINITOL INNER SALT;
DIASTEREOMER OF SALACINOL
ChEMBL
DrugBank
ZINC
PDB chain3l4z Chain A Residue 1001 [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]
PDB3l4z New glucosidase inhibitors from an ayurvedic herbal treatment for type 2 diabetes: structures and inhibition of human intestinal maltase-glucoamylase with compounds from Salacia reticulata.
Resolution2.0 Å
Binding residue
(original residue number in PDB)
D203 Y299 D327 W406 D443 R526 D542 F575 H600
Binding residue
(residue number reindexed from 1)
D197 Y293 D321 W400 D437 R520 D536 F569 H594
Annotation score1
Binding affinityMOAD: Ki=0.19uM
PDBbind-CN: -logKd/Ki=6.72,Ki=0.19uM
Enzymatic activity
Enzyme Commision number 3.2.1.20: alpha-glucosidase.
Gene Ontology
Molecular Function
GO:0003824 catalytic activity
GO:0004553 hydrolase activity, hydrolyzing O-glycosyl compounds
GO:0030246 carbohydrate binding
Biological Process
GO:0005975 carbohydrate metabolic process

View graph for
Molecular Function

View graph for
Biological Process
External links
PDB RCSB:3l4z, PDBe:3l4z, PDBj:3l4z
PDBsum3l4z
PubMed20039683
UniProtO43451|MGA_HUMAN Maltase-glucoamylase (Gene Name=MGAM)

[Back to BioLiP]