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| | <StructureSection load='2cnt' size='340' side='right'caption='[[2cnt]], [[Resolution|resolution]] 2.40Å' scene=''> | | <StructureSection load='2cnt' size='340' side='right'caption='[[2cnt]], [[Resolution|resolution]] 2.40Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2cnt]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Salty Salty]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CNT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2CNT FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2cnt]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Salmonella_enterica_subsp._enterica_serovar_Typhimurium_str._LT2 Salmonella enterica subsp. enterica serovar Typhimurium str. LT2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CNT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2CNT FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=COA:COENZYME+A'>COA</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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]] 2.4Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[2cnm|2cnm]], [[2cns|2cns]]</div></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=COA:COENZYME+A'>COA</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Ribosomal-protein-alanine_N-acetyltransferase Ribosomal-protein-alanine N-acetyltransferase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.3.1.128 2.3.1.128] </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=2cnt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2cnt OCA], [https://pdbe.org/2cnt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2cnt RCSB], [https://www.ebi.ac.uk/pdbsum/2cnt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2cnt ProSAT]</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=2cnt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2cnt OCA], [https://pdbe.org/2cnt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2cnt RCSB], [https://www.ebi.ac.uk/pdbsum/2cnt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2cnt ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/RIMI_SALTY RIMI_SALTY] Acetylates the N-terminal alanine of ribosomal protein S18.[HAMAP-Rule:MF_02210]<ref>PMID:18596200</ref> |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | </StructureSection> | | </StructureSection> |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Ribosomal-protein-alanine N-acetyltransferase]] | + | [[Category: Salmonella enterica subsp. enterica serovar Typhimurium str. LT2]] |
| - | [[Category: Salty]]
| + | [[Category: Bareich DC]] |
| - | [[Category: Bareich, D C]] | + | [[Category: Blanchard JS]] |
| - | [[Category: Blanchard, J S]] | + | [[Category: Vetting MW]] |
| - | [[Category: Vetting, M W]] | + | [[Category: Yu M]] |
| - | [[Category: Yu, M]] | + | |
| - | [[Category: Acetyltransferase]]
| + | |
| - | [[Category: Acyltransferase]]
| + | |
| - | [[Category: Gcn5-n-acetyltransferase]]
| + | |
| - | [[Category: Gnat]]
| + | |
| - | [[Category: N-alpha acetylation]]
| + | |
| - | [[Category: Ribosomal protein]]
| + | |
| - | [[Category: Transferase]]
| + | |
| Structural highlights
Function
RIMI_SALTY Acetylates the N-terminal alanine of ribosomal protein S18.[HAMAP-Rule:MF_02210][1]
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
The three ribosomal proteins L7, S5, and S18 are included in the rare subset of prokaryotic proteins that are known to be N(alpha)-acetylated. The GCN5-related N-acetyltransferase (GNAT) protein RimI, responsible for the N(alpha)-acetylation of the ribosomal protein S18, was cloned from Salmonella typhimurium LT2 (RimI(ST)), overexpressed, and purified to homogeneity. Steady-state kinetic parameters for RimI(ST) were determined for AcCoA and a peptide substrate consisting of the first six amino acids of the target protein S18. The crystal structure of RimI(ST) was determined in complex with CoA, AcCoA, and a CoA-S-acetyl-ARYFRR bisubstrate inhibitor. The structures are consistent with a direct nucleophilic addition-elimination mechanism with Glu103 and Tyr115 acting as the catalytic base and acid, respectively. The RimI(ST)-bisubstrate complex suggests that several residues change conformation upon interacting with the N terminus of S18, including Glu103, the proposed active site base, facilitating proton exchange and catalysis.
Crystal structure of RimI from Salmonella typhimurium LT2, the GNAT responsible for N(alpha)-acetylation of ribosomal protein S18.,Vetting MW, Bareich DC, Yu M, Blanchard JS Protein Sci. 2008 Oct;17(10):1781-90. Epub 2008 Jul 2. PMID:18596200[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Vetting MW, Bareich DC, Yu M, Blanchard JS. Crystal structure of RimI from Salmonella typhimurium LT2, the GNAT responsible for N(alpha)-acetylation of ribosomal protein S18. Protein Sci. 2008 Oct;17(10):1781-90. Epub 2008 Jul 2. PMID:18596200 doi:10.1110/ps.035899.108
- ↑ Vetting MW, Bareich DC, Yu M, Blanchard JS. Crystal structure of RimI from Salmonella typhimurium LT2, the GNAT responsible for N(alpha)-acetylation of ribosomal protein S18. Protein Sci. 2008 Oct;17(10):1781-90. Epub 2008 Jul 2. PMID:18596200 doi:10.1110/ps.035899.108
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