Structure of PDB 6x1q Chain B

Receptor sequence
>6x1qB (length=1014) Species: 83333 (Escherichia coli K-12) [Search protein sequence]
MITDSLAVVLQRRDWENPGVTQLNRLAAHPPFASWRNSEEARTDRPSQQL
RSLNGEWRFAWFPAPEAVPESWLECDLPEADTVVVPSNWQMHGYDAPIYT
NVTYPITVNPPFVPTENPTGCYSLTFNVDESWLQEGQTRIIFDGVNSAFH
LWCNGRWVGYGQDSRLPSEFDLSAFLRAGENRLAVMVLRWSDGSYLEDQD
MWRMSGIFRDVSLLHKPTTQISDFHVATRFNDDFSRAVLEAEVQMCGELR
DYLRVTVSLWQGETQVASGTAPFGGEIIDERGGYADRVTLRLNVENPKLW
SAEIPNLYRAVVELHTADGTLIEAEACDVGFRVVRIENGLLLLNGKPLLI
RGVNRHEHHPLHGQVMDEQTMVQDILLMKQNNFNAVRCSHYPNHPLWYTL
CDRYGLYVVDEANIETHGMVPMNRLTDDPRWLPAMSERVTRMVQRDRNHP
SVIIWSLGNESGHGANHDALYRWIKSVDPSRPVQYEGGGADTTATDIICP
MYARVDEDQPFPAVPKWSIKKWLSLPGETRPLILCEYAHAMGNSLGGFAK
YWQAFRQYPRLQGGFVWDWVDQSLIKYDENGNPWSAYGGDFGDTPNDRQF
CMNGLVFADRTPHPALTEAKHQQQFFQFRLSGQTIEVTSEYLFRHSDNEL
LHWMVALDGKPLASGEVPLDVAPQGKQLIELPELPQPESAGQLWLTVRVV
QPNATAWSEAGHISAWQQWRLAENLSVAIPHLTTSEMDFCIELGNKRWQF
NRQSGFLSQMWIGDKKQLLTPLRDQFTRAPLDNDIGVSEATRIDPNAWVE
RWKAAGHYQAEAALLQCTADTLADAVLITTAHAWQHQGKTLFISRKTYRI
DGSGQMAITVDVVVASDTPHPARIGLNCQLAQVAERVNWLGLGPQENYPD
RLTAACFDRWDLPLSDMYTPYVFPSENGLRCGTRELNYGPHQWRGDFQFN
ISRYSQQQLMETSHRHLLHAEEGTWLNIDGFHMGIGGDDSWSPSVSAEFQ
LSAGRYHYQLVWCQ
3D structure
PDB6x1q 1.8 angstrom resolution structure of beta-galactosidase with a 200 kV CRYO ARM electron microscope.
ChainB
Resolution1.8 Å
3D
structure
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Enzymatic activity
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 MG B E416 H418 E461 E415 H417 E460
BS02 MG B D15 N18 V21 Q163 D193 D14 N17 V20 Q162 D192
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:6x1q, PDBe:6x1q, PDBj:6x1q
PDBsum6x1q
PubMed32695410
UniProtP00722|BGAL_ECOLI Beta-galactosidase (Gene Name=lacZ)

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