Structure of PDB 3e1f Chain 4 Binding Site BS03

Receptor Information
>3e1f Chain 4 (length=1011) Species: 83333 (Escherichia coli K-12) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
RRDWENPGVTQLNRLAAHPPFASWRNSEEARTDRPSQQLRSLNGEWRFAW
FPAPEAVPESWLECDLPEADTVVVPSNWQMHGYDAPIYTNVTYPITVNPP
FVPTENPTGCYSLTFNVDESWLQEGQTRIIFDGVNSAFHLWCNGRWVGYG
QDSRLPSEFDLSAFLRAGENRLAVMVLRWSDGSYLEDQDMWRMSGIFRDV
SLLHKPTTQISDFHVATRFNDDFSRAVLEAEVQMCGELRDYLRVTVSLWQ
GETQVASGTAPFGGEIIDERGGYADRVTLRLNVENPKLWSAEIPNLYRAV
VELHTADGTLIEAEACDVGFREVRIENGLLLLNGKPLLIRGVNRHEHHPL
HGQVMDEQTMVQDILLMKQNNFNAVRCSHYPNHPLWYTLCDRYGLYVVDE
ANIETEGMVPMNRLTDDPRWLPAMSERVTRMVQRDRNHPSVIIWSLGNES
GHGANHDALYRWIKSVDPSRPVQYEGGGADTTATDIICPMYARVDEDQPF
PAVPKWSIKKWLSLPGETRPLILCEYAHAMGNSLGGFAKYWQAFRQYPRL
QGGFVWDWVDQSLIKYDENGNPWSAYGGDFGDTPNDRQFCMNGLVFADRT
PHPALTEAKHQQQFFQFRLSGQTIEVTSEYLFRHSDNELLHWMVALDGKP
LASGEVPLDVAPQGKQLIELPELPQPESAGQLWLTVRVVQPNATAWSEAG
HISAWQQWRLAENLSVTLPAASHAIPHLTTSEMDFCIELGNKRWQFNRQS
GFLSQMWIGDKKQLLTPLRDQFTRAPLDNDIGVSEATRIDPNAWVERWKA
AGHYQAEAALLQCTADTLADAVLITTAHAWQHQGKTLFISRKTYRIDGSG
QMAITVDVEVASDTPHPARIGLNCQLAQVAERVNWLGLGPQENYPDRLTA
ACFDRWDLPLSDMYTPYVFPSENGLRCGTRELNYGPHQWRGDFQFNISRY
SQQQLMETSHRHLLHAEEGTWLNIDGFHMGIGGDDSWSPSVSAEFQLSAG
RYHYQLVWCQK
Ligand information
Ligand IDMG
InChIInChI=1S/Mg/q+2
InChIKeyJLVVSXFLKOJNIY-UHFFFAOYSA-N
SMILES
SoftwareSMILES
ACDLabs 10.04
OpenEye OEToolkits 1.5.0		[Mg+2]
CACTVS 3.341[Mg++]
FormulaMg
NameMAGNESIUM ION
ChEMBL
DrugBankDB01378
ZINC
PDB chain3e1f Chain 4 Residue 3000 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB3e1f Direct and indirect roles of His-418 in metal binding and in the activity of beta-galactosidase (E. coli).
Resolution3.0 Å
Binding residue
(original residue number in PDB)		D15 N18 V21 Q163 D193
Binding residue
(residue number reindexed from 1)		D3 N6 V9 Q151 D181
Annotation score4
Enzymatic activity
Catalytic site (original residue number in PDB) Y503 E537
Catalytic site (residue number reindexed from 1) Y491 E525
Enzyme Commision number 3.2.1.23: beta-galactosidase.
Gene Ontology
Molecular Function
GO:0000287 magnesium ion binding
GO:0003824 catalytic activity
GO:0004553 hydrolase activity, hydrolyzing O-glycosyl compounds
GO:0004565 beta-galactosidase activity
GO:0016798 hydrolase activity, acting on glycosyl bonds
GO:0030246 carbohydrate binding
GO:0031420 alkali metal ion binding
GO:0042802 identical protein binding
GO:0046872 metal ion binding
Biological Process
GO:0005975 carbohydrate metabolic process
GO:0005990 lactose catabolic process
GO:0009056 catabolic process
Cellular Component
GO:0009341 beta-galactosidase complex

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:3e1f, PDBe:3e1f, PDBj:3e1f
PDBsum3e1f
PubMed19472413
UniProtP00722|BGAL_ECOLI Beta-galactosidase (Gene Name=lacZ)

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