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PDBsum entry 1k4h

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protein ligands metals links
Transferase PDB id
1k4h

 

 

 

 

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Contents
Protein chain
372 a.a. *
Ligands
APQ
Metals
_ZN
Waters ×406
* Residue conservation analysis
PDB id:
1k4h
Name: Transferase
Title: Crystal structure of tRNA-guanine transglycosylase (tgt) complexed with 2,6-diamino-8-propylsulfanylmethyl-3h-quinazoline-4-one
Structure: tRNA-guanine-transglycosylase. Chain: a. Synonym: tgt, queuine tRNA-ribosyltransferase, guanine insertion enzyme. Engineered: yes
Source: Zymomonas mobilis. Organism_taxid: 542. Expressed in: escherichia coli. Expression_system_taxid: 562
Biol. unit: Dimer (from PQS)
Resolution:
1.80Å     R-factor:   0.196     R-free:   0.229
Authors: R.Brenk,E.A.Meyer,R.K.Castellano,M.Furler,M.T.Stubbs,G.Klebe, F.Diederich
Key ref: E.A.Meyer et al. (2002). De novo design, synthesis, and in vitro evaluation of inhibitors for prokaryotic tRNA-guanine transglycosylase: a dramatic sulfur effect on binding affinity. Chembiochem, 3, 250-253. PubMed id: 11921407 DOI: 10.1002/1439-7633(20020301)3:2/3<250::AID-CBIC250>3.0.CO;2-J
Date:
08-Oct-01     Release date:   24-Apr-02    
PROCHECK
Go to PROCHECK summary
 Headers
 References

Protein chain
Pfam   ArchSchema ?
P28720  (TGT_ZYMMO) -  Queuine tRNA-ribosyltransferase from Zymomonas mobilis subsp. mobilis (strain ATCC 31821 / ZM4 / CP4)
Seq:
Struc:
386 a.a.
372 a.a.*
Key:    PfamA domain  Secondary structure  CATH domain
* PDB and UniProt seqs differ at 1 residue position (black cross)

 Enzyme reactions 
   Enzyme class: E.C.2.4.2.29  - tRNA-guanosine(34) preQ1 transglycosylase.
[IntEnz]   [ExPASy]   [KEGG]   [BRENDA]
      Reaction: 7-aminomethyl-7-carbaguanine + guanosine34 in tRNA = 7-aminomethyl-7- carbaguanosine34 in tRNA + guanine
7-aminomethyl-7-carbaguanine
Bound ligand (Het Group name = APQ)
matches with 55.00% similarity
+ guanosine(34) in tRNA
= 7-aminomethyl-7- carbaguanosine(34) in tRNA
+ guanine
Molecule diagrams generated from .mol files obtained from the KEGG ftp site

 

 
    Added reference    
 
 
DOI no: 10.1002/1439-7633(20020301)3:2/3<250::AID-CBIC250>3.0.CO;2-J Chembiochem 3:250-253 (2002)
PubMed id: 11921407  
 
 
De novo design, synthesis, and in vitro evaluation of inhibitors for prokaryotic tRNA-guanine transglycosylase: a dramatic sulfur effect on binding affinity.
E.A.Meyer, R.Brenk, R.K.Castellano, M.Furler, G.Klebe, F.Diederich.
 
  ABSTRACT  
 
No abstract given.

 

Literature references that cite this PDB file's key reference

  PubMed id Reference
17441158 A.Goel, F.V.Singh, M.Dixit, D.Verma, R.Raghunandan, and P.R.Maulik (2007).
Highly efficient non-palladium-catalyzed controlled synthesis and X-ray analysis of functionalized 1,2-diaryl-, 1,2,3-triaryl-, and 1,2,3,4-tetraarylbenzenes.
  Chem Asian J, 2, 239-247.  
16206323 B.Stengl, K.Reuter, and G.Klebe (2005).
Mechanism and substrate specificity of tRNA-guanine transglycosylases (TGTs): tRNA-modifying enzymes from the three different kingdoms of life share a common catalytic mechanism.
  Chembiochem, 6, 1926-1939.  
15146480 O.Kraemer, I.Hazemann, A.D.Podjarny, and G.Klebe (2004).
Virtual screening for inhibitors of human aldose reductase.
  Proteins, 55, 814-823.  
15239063 S.C.Miller, and T.J.Mitchison (2004).
Synthesis and phenotypic screening of a Guanine-mimetic library.
  Chembiochem, 5, 1010-1012.  
15239059 S.Sahli, B.Stump, T.Welti, D.Blum-Kaelin, J.D.Aebi, C.Oefner, H.J.Böhm, and F.Diederich (2004).
Structure-based design, synthesis, and in vitro evaluation of nonpeptidic neprilysin inhibitors.
  Chembiochem, 5, 996.  
14523925 R.Brenk, M.T.Stubbs, A.Heine, K.Reuter, and G.Klebe (2003).
Flexible adaptations in the structure of the tRNA-modifying enzyme tRNA-guanine transglycosylase and their implications for substrate selectivity, reaction mechanism and structure-based drug design.
  Chembiochem, 4, 1066-1077.
PDB codes: 1ozm 1ozq 1p0b 1p0d 1p0e
The most recent references are shown first. Citation data come partly from CiteXplore and partly from an automated harvesting procedure. Note that this is likely to be only a partial list as not all journals are covered by either method. However, we are continually building up the citation data so more and more references will be included with time. Where a reference describes a PDB structure, the PDB codes are shown on the right.

 

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