Structure of PDB 1ez9 Chain A Binding Site BS03

Receptor Information
>1ez9 Chain A (length=370) Species: 83333 (Escherichia coli K-12) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
KIEEGKLVIWINGDKGYNGLAEVGKKFEKDTGIKVTVEHPDKLEEKFPQV
AATGDGPDIIFWAHDRFGGYAQSGLLAEITPDKAFQDKLYPFTWDAVRYN
GKLIAYPIAVEALSLIYNKDLLPNPPKTWEEIPALDKELKAKGKSALMFN
LQEPYFTWPLIAADGGYAFKYENGKYDIKDVGVDNAGAKAGLTFLVDLIK
NKHMNADTDYSIAEAAFNKGETAMTINGPWAWSNIDTSKVNYGVTVLPTF
KGQPSKPFVGVLSAGINAASPNKELAKEFLENYLLTDEGLEAVNKDKPLG
AVALKSYEEELAKDPRIAATMENAQKGEIMPNIPQMSAFWYAVRTAVINA
ASGRQTVDEALKDAQTRITK
Ligand information
Ligand IDGLC
InChIInChI=1S/C6H12O6/c7-1-2-3(8)4(9)5(10)6(11)12-2/h2-11H,1H2/t2-,3-,4+,5-,6+/m1/s1
InChIKeyWQZGKKKJIJFFOK-DVKNGEFBSA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.5.0C(C1C(C(C(C(O1)O)O)O)O)O
OpenEye OEToolkits 1.5.0C([C@@H]1[C@H]([C@@H]([C@H]([C@H](O1)O)O)O)O)O
CACTVS 3.341OC[CH]1O[CH](O)[CH](O)[CH](O)[CH]1O
CACTVS 3.341OC[C@H]1O[C@H](O)[C@H](O)[C@@H](O)[C@@H]1O
ACDLabs 10.04OC1C(O)C(OC(O)C1O)CO
FormulaC6 H12 O6
Namealpha-D-glucopyranose;
alpha-D-glucose;
D-glucose;
glucose
ChEMBLCHEMBL423707
DrugBank
ZINCZINC000003861213
PDB chain1ez9 Chain C Residue 4 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1ez9 Structural evidence for a dominant role of nonpolar interactions in the binding of a transport/chemosensory receptor to its highly polar ligands.
Resolution1.9 Å
Binding residue
(original residue number in PDB)		E153 W340 Y341 R344
Binding residue
(residue number reindexed from 1)		E153 W340 Y341 R344
Annotation score4
Binding affinityPDBbind-CN: -logKd/Ki=5.10,Kd=8uM
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Molecular Function
GO:0005515 protein binding
GO:0015144 carbohydrate transmembrane transporter activity
GO:1901982 maltose binding
Biological Process
GO:0006974 DNA damage response
GO:0008643 carbohydrate transport
GO:0015768 maltose transport
GO:0034219 carbohydrate transmembrane transport
GO:0034289 detection of maltose stimulus
GO:0042956 maltodextrin transmembrane transport
GO:0055085 transmembrane transport
GO:0060326 cell chemotaxis
Cellular Component
GO:0016020 membrane
GO:0030288 outer membrane-bounded periplasmic space
GO:0042597 periplasmic space
GO:0043190 ATP-binding cassette (ABC) transporter complex
GO:0055052 ATP-binding cassette (ABC) transporter complex, substrate-binding subunit-containing
GO:1990060 maltose transport complex

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:1ez9, PDBe:1ez9, PDBj:1ez9
PDBsum1ez9
PubMed11790091
UniProtP0AEX9|MALE_ECOLI Maltose/maltodextrin-binding periplasmic protein (Gene Name=malE)

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