Structure of PDB 2z1w Chain A

Receptor sequence
>2z1wA (length=362) Species: 542 (Zymomonas mobilis) [Search protein sequence]
RPRFSFSIAAREGKARTGTIEMKRGVIRTPAFMPVGTAATVKALKPETVR
ATGADIILGNTYHLMLRPGAERIAKLGGLHSFMGWDRPILTDSGGYQVMS
LTKQSEEGVTFKMLSPERSIEIQHLLGSDIVMAFDECTPYPATPSRAASS
MERSMRWAKRSRDAFDSRKEQAENAALFGIQQGSVFENLRQQSADALAEI
GFDGYAVGGLAVGQGQDEMFRVLDFSVPMLPDDKPHYLMGVGKPDDIVGA
VERGIDMFDCVLPTRSGRNGQAFTWDGPINIRNARFSEDLKPLDSECHCA
VCQKWSRAYIHHLIRAGEILGAMLMTEHNIAFYQQLMQKIRDSISEGRFS
QFAQDFRARYFA
3D structure
PDB2z1w Glutamate versus Glutamine Exchange Swaps Substrate Selectivity in tRNA-Guanine Transglycosylase: Insight into the Regulation of Substrate Selectivity by Kinetic and Crystallographic Studies
ChainA
Resolution1.63 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) D102 D280 C318 C320 C323 H349
Catalytic site (residue number reindexed from 1) D92 D259 C297 C299 C302 H328
Enzyme Commision number 2.4.2.29: tRNA-guanosine(34) preQ1 transglycosylase.
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 ZN A C318 C320 C323 H349 C297 C299 C302 H328
BS02 BDI A Y106 D156 C158 Q203 G229 G230 M260 Y96 D135 C137 Q182 G208 G209 M239 PDBbind-CN: -logKd/Ki=4.08,Ki=83uM
Gene Ontology
Molecular Function
GO:0008479 tRNA-guanosine(34) queuine transglycosylase activity
GO:0016757 glycosyltransferase activity
GO:0016763 pentosyltransferase activity
GO:0046872 metal ion binding
Biological Process
GO:0002099 tRNA wobble guanine modification
GO:0006400 tRNA modification
GO:0008033 tRNA processing
GO:0008616 queuosine biosynthetic process
GO:0101030 tRNA-guanine transglycosylation
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol

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Molecular Function
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Cellular Component
External links
PDB RCSB:2z1w, PDBe:2z1w, PDBj:2z1w
PDBsum2z1w
PubMed17949745
UniProtP28720|TGT_ZYMMO Queuine tRNA-ribosyltransferase (Gene Name=tgt)

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