Structure of PDB 1jz8 Chain A

Receptor sequence
>1jz8A (length=1011) Species: 562 (Escherichia coli) [Search protein sequence]
RRDWENPGVTQLNRLAAHPPFASWRNSEEARTDRPSQQLRSLNGEWRFAW
FPAPEAVPESWLECDLPEADTVVVPSNWQMHGYDAPIYTNVTYPITVNPP
FVPTENPTGCYSLTFNVDESWLQEGQTRIIFDGVNSAFHLWCNGRWVGYG
QDSRLPSEFDLSAFLRAGENRLAVMVLRWSDGSYLEDQDMWRMSGIFRDV
SLLHKPTTQISDFHVATRFNDDFSRAVLEAEVQMCGELRDYLRVTVSLWQ
GETQVASGTAPFGGEIIDERGGYADRVTLRLNVENPKLWSAEIPNLYRAV
VELHTADGTLIEAEACDVGFREVRIENGLLLLNGKPLLIRGVNRHEHHPL
HGQVMDEQTMVQDILLMKQNNFNAVRCSHYPNHPLWYTLCDRYGLYVVDE
ANIETHGMVPMNRLTDDPRWLPAMSERVTRMVQRDRNHPSVIIWSLGNES
GHGANHDALYRWIKSVDPSRPVQYEGGGADTTATDIICPMYARVDEDQPF
PAVPKWSIKKWLSLPGETRPLILCQYAHAMGNSLGGFAKYWQAFRQYPRL
QGGFVWDWVDQSLIKYDENGNPWSAYGGDFGDTPNDRQFCMNGLVFADRT
PHPALTEAKHQQQFFQFRLSGQTIEVTSEYLFRHSDNELLHWMVALDGKP
LASGEVPLDVAPQGKQLIELPELPQPESAGQLWLTVRVVQPNATAWSEAG
HISAWQQWRLAENLSVTLPAASHAIPHLTTSEMDFCIELGNKRWQFNRQS
GFLSQMWIGDKKQLLTPLRDQFTRAPLDNDIGVSEATRIDPNAWVERWKA
AGHYQAEAALLQCTADTLADAVLITTAHAWQHQGKTLFISRKTYRIDGSG
QMAITVDVEVASDTPHPARIGLNCQLAQVAERVNWLGLGPQENYPDRLTA
ACFDRWDLPLSDMYTPYVFPSENGLRCGTRELNYGPHQWRGDFQFNISRY
SQQQLMETSHRHLLHAEEGTWLNIDGFHMGIGGDDSWSPSVSAEFQLSAG
RYHYQLVWCQK
3D structure
PDB1jz8 A Structural View of the Action of Escherichia Coli (Lacz) Beta-Galactosidase
ChainA
Resolution1.5 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) D201 H357 H391 E416 H418 E461 Y503 Q537 N597 F601 N604
Catalytic site (residue number reindexed from 1) D189 H345 H379 E404 H406 E449 Y491 Q525 N585 F589 N592
Enzyme Commision number 3.2.1.23: beta-galactosidase.
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 GAL A N102 D201 E461 Y503 Q537 H540 N604 W999 N90 D189 E449 Y491 Q525 H528 N592 W987
BS02 MG A E416 H418 E461 E404 H406 E449
BS03 MG A D15 N18 V21 Q163 D193 D3 N6 V9 Q151 D181
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:1jz8, PDBe:1jz8, PDBj:1jz8
PDBsum1jz8
PubMed11732897
UniProtP00722|BGAL_ECOLI Beta-galactosidase (Gene Name=lacZ)

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