Structure of PDB 1guq Chain B

Receptor sequence
>1guqB (length=344) Species: 562 (Escherichia coli) [Search protein sequence]
TQFNPVDHPHRRYNPLTGQWILVSPHRAKRPWQGAQETPAKQVLPAHDPD
CFLCAGNVRVTGDKNPDYTGTYVFTNDFAALMSDTPDAPESHDPLMRCQS
ARGTSRVICFSPDHSKTLPELSVAALTEIVKTWQEQTAELGKTYPWVQVF
ENKGAAMGCSNPHPGGQIWANSFLPNEAEREDRLQKEYFAEQKSPMLVDY
VQRELADGSRTVVETEHWLAVVPYWAAWPFETLLLPKAHVLRITDLTDAQ
RSDLALALKKLTSRYDNLFQCSFPYSMGWHGAPFNGEENQHWQLHAHFYP
PLLRSATVRKFMVGYEMLAETQRDLTAEQAAERLRAVSDIHFRE
3D structure
PDB1guq Structural analysis of the H166G site-directed mutant of galactose-1-phosphate uridylyltransferase complexed with either UDP-glucose or UDP-galactose: detailed description of the nucleotide sugar binding site.
ChainB
Resolution1.8 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) C52 C55 H115 N153 S161 H164 G166 Q168
Catalytic site (residue number reindexed from 1) C51 C54 H114 N152 S160 H163 G165 Q167
Enzyme Commision number 2.7.7.12: UDP-glucose--hexose-1-phosphate uridylyltransferase.
Interaction with ligand
Gene Ontology
Molecular Function
GO:0004335 galactokinase activity
GO:0008108 UDP-glucose:hexose-1-phosphate uridylyltransferase activity
GO:0008198 ferrous iron binding
GO:0008270 zinc ion binding
GO:0016779 nucleotidyltransferase activity
GO:0046872 metal ion binding
Biological Process
GO:0006012 galactose metabolic process
GO:0033499 galactose catabolic process via UDP-galactose
GO:0046835 carbohydrate phosphorylation
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:1guq, PDBe:1guq, PDBj:1guq
PDBsum1guq
PubMed9063869
UniProtP09148|GAL7_ECOLI Galactose-1-phosphate uridylyltransferase (Gene Name=galT)

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