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| | ==Crystal structure of Leucyl/phenylalanyl-tRNA protein transferase from Escherichia coli== | | ==Crystal structure of Leucyl/phenylalanyl-tRNA protein transferase from Escherichia coli== |
| - | <StructureSection load='2cxa' size='340' side='right' caption='[[2cxa]], [[Resolution|resolution]] 1.60Å' scene=''> | + | <StructureSection load='2cxa' size='340' side='right'caption='[[2cxa]], [[Resolution|resolution]] 1.60Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2cxa]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_coli"_migula_1895 "bacillus coli" migula 1895]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CXA OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2CXA FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2cxa]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CXA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2CXA FirstGlance]. <br> |
| - | </td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.6Å</td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Leucyltransferase Leucyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.3.2.6 2.3.2.6] </span></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2cxa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2cxa OCA], [http://pdbe.org/2cxa PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2cxa RCSB], [http://www.ebi.ac.uk/pdbsum/2cxa PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2cxa ProSAT], [http://www.topsan.org/Proteins/RSGI/2cxa TOPSAN]</span></td></tr> | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2cxa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2cxa OCA], [https://pdbe.org/2cxa PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2cxa RCSB], [https://www.ebi.ac.uk/pdbsum/2cxa PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2cxa ProSAT], [https://www.topsan.org/Proteins/RSGI/2cxa TOPSAN]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/LFTR_ECOLI LFTR_ECOLI]] Functions in the N-end rule pathway of protein degradation where it conjugates Leu, Phe and, less efficiently, Met from aminoacyl-tRNAs to the N-termini of proteins containing an N-terminal arginine or lysine. | + | [https://www.uniprot.org/uniprot/LFTR_ECOLI LFTR_ECOLI] Functions in the N-end rule pathway of protein degradation where it conjugates Leu, Phe and, less efficiently, Met from aminoacyl-tRNAs to the N-termini of proteins containing an N-terminal arginine or lysine. |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Bacillus coli migula 1895]] | + | [[Category: Escherichia coli]] |
| - | [[Category: Leucyltransferase]] | + | [[Category: Large Structures]] |
| - | [[Category: Bessho, Y]] | + | [[Category: Bessho Y]] |
| - | [[Category: Kato-Murayama, M]] | + | [[Category: Kato-Murayama M]] |
| - | [[Category: Structural genomic]]
| + | [[Category: Shirouzu M]] |
| - | [[Category: Shirouzu, M]] | + | [[Category: Yokoyama S]] |
| - | [[Category: Yokoyama, S]] | + | |
| - | [[Category: Aminoacyl-trna]]
| + | |
| - | [[Category: National project on protein structural and functional analyse]]
| + | |
| - | [[Category: Nppsfa]]
| + | |
| - | [[Category: Protein degradation]]
| + | |
| - | [[Category: Rsgi]]
| + | |
| - | [[Category: Transferase]]
| + | |
| Structural highlights
Function
LFTR_ECOLI Functions in the N-end rule pathway of protein degradation where it conjugates Leu, Phe and, less efficiently, Met from aminoacyl-tRNAs to the N-termini of proteins containing an N-terminal arginine or lysine.
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
Leucyl/phenylalanyl-tRNA-protein transferase (L/F-transferase) is an N-end rule pathway enzyme, which catalyzes the transfer of Leu and Phe from aminoacyl-tRNAs to exposed N-terminal Arg or Lys residues of acceptor proteins. Here, we report the 1.6 A resolution crystal structure of L/F-transferase (JW0868) from Escherichia coli, the first three-dimensional structure of an L/F-transferase. The L/F-transferase adopts a monomeric structure consisting of two domains that form a bilobate molecule. The N-terminal domain forms a small lobe with a novel fold. The large C-terminal domain has a highly conserved fold, which is observed in the GCN5-related N-acetyltransferase (GNAT) family. Most of the conserved residues of L/F-transferase reside in the central cavity, which exists at the interface between the N-terminal and C-terminal domains. A comparison of the structures of L/F-transferase and the bacterial peptidoglycan synthase FemX, indicated a structural homology in the C-terminal domain, and a similar domain interface region. Although the peptidyltransferase function is shared between the two proteins, the enzymatic mechanism would differ. The conserved residues in the central cavity of L/F-transferase suggest that this region is important for the enzyme catalysis.
The crystal structure of leucyl/phenylalanyl-tRNA-protein transferase from Escherichia coli.,Dong X, Kato-Murayama M, Muramatsu T, Mori H, Shirouzu M, Bessho Y, Yokoyama S Protein Sci. 2007 Mar;16(3):528-34. Epub 2007 Jan 22. PMID:17242373[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Dong X, Kato-Murayama M, Muramatsu T, Mori H, Shirouzu M, Bessho Y, Yokoyama S. The crystal structure of leucyl/phenylalanyl-tRNA-protein transferase from Escherichia coli. Protein Sci. 2007 Mar;16(3):528-34. Epub 2007 Jan 22. PMID:17242373 doi:10.1110/ps.062616107
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