|
|
| Line 3: |
Line 3: |
| | <StructureSection load='5c88' size='340' side='right'caption='[[5c88]], [[Resolution|resolution]] 2.49Å' scene=''> | | <StructureSection load='5c88' size='340' side='right'caption='[[5c88]], [[Resolution|resolution]] 2.49Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[5c88]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Sacs2 Sacs2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5C88 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5C88 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[5c88]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharolobus_solfataricus_P2 Saccharolobus solfataricus P2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5C88 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5C88 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=COA:COENZYME+A'>COA</scene></td></tr> | + | </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></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SSO0209 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=273057 SACS2])</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=5c88 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5c88 OCA], [https://pdbe.org/5c88 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5c88 RCSB], [https://www.ebi.ac.uk/pdbsum/5c88 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5c88 ProSAT]</span></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Peptide_alpha-N-acetyltransferase Peptide alpha-N-acetyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.3.1.88 2.3.1.88] </span></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=5c88 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5c88 OCA], [http://pdbe.org/5c88 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5c88 RCSB], [http://www.ebi.ac.uk/pdbsum/5c88 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5c88 ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/NAT_SACS2 NAT_SACS2] Displays alpha (N-terminal) acetyltransferase activity. Catalyzes the covalent attachment of an acetyl moiety from acetyl-CoA to the free alpha-amino group at the N-terminus of a protein (PubMed:17511810, PubMed:23959863, PubMed:25728374). NAT is able to acetylate the alpha-amino group of methionine, alanine and serine N-terminal residue substrates, however it has a preference for Ser-N-terminal substrates (PubMed:17511810, PubMed:23959863, PubMed:25728374).<ref>PMID:17511810</ref> <ref>PMID:23959863</ref> <ref>PMID:25728374</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
| Line 23: |
Line 23: |
| | </StructureSection> | | </StructureSection> |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Peptide alpha-N-acetyltransferase]] | + | [[Category: Saccharolobus solfataricus P2]] |
| - | [[Category: Sacs2]]
| + | [[Category: Chang YY]] |
| - | [[Category: Chang, Y Y]] | + | [[Category: Hsu CH]] |
| - | [[Category: Hsu, C H]] | + | |
| - | [[Category: Acetyltransferase]]
| + | |
| - | [[Category: Transferase]]
| + | |
| Structural highlights
Function
NAT_SACS2 Displays alpha (N-terminal) acetyltransferase activity. Catalyzes the covalent attachment of an acetyl moiety from acetyl-CoA to the free alpha-amino group at the N-terminus of a protein (PubMed:17511810, PubMed:23959863, PubMed:25728374). NAT is able to acetylate the alpha-amino group of methionine, alanine and serine N-terminal residue substrates, however it has a preference for Ser-N-terminal substrates (PubMed:17511810, PubMed:23959863, PubMed:25728374).[1] [2] [3]
Publication Abstract from PubMed
Structural comparison indicates the loop region between beta3 and beta4 of SsArd1 was more extended than corresponding region of mesophilic Nats and formed a plastically hydrogen bond network mainly via two Ser residues. Strikingly, two single-point mutants showed ~3 degrees C decrease in melting temperature, while two other variants showed a ~7 degrees C decrease in melting temperature, which correlated to the seriously reducing enzymatic activity. To our knowledge, this is the first discovery of a loop region capable of remarkably improving protein thermostability and to provide a novel possibility to engineer heat-resistant proteins.
Multiple conformations of the loop region confers heat-resistance of SsArd1, a thermophilic NatA.,Chang YY, Hsu CH Chembiochem. 2015 Nov 23. doi: 10.1002/cbic.201500568. PMID:26593285[4]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Mackay DT, Botting CH, Taylor GL, White MF. An acetylase with relaxed specificity catalyses protein N-terminal acetylation in Sulfolobus solfataricus. Mol Microbiol. 2007 Jun;64(6):1540-8. doi: 10.1111/j.1365-2958.2007.05752.x. Epub , 2007 May 18. PMID:17511810 doi:http://dx.doi.org/10.1111/j.1365-2958.2007.05752.x
- ↑ Liszczak G, Marmorstein R. Implications for the evolution of eukaryotic amino-terminal acetyltransferase (NAT) enzymes from the structure of an archaeal ortholog. Proc Natl Acad Sci U S A. 2013 Sep 3;110(36):14652-7. doi:, 10.1073/pnas.1310365110. Epub 2013 Aug 19. PMID:23959863 doi:http://dx.doi.org/10.1073/pnas.1310365110
- ↑ Chang YY, Hsu CH. Structural Basis for Substrate-specific Acetylation of Nalpha-acetyltransferase Ard1 from Sulfolobus solfataricus. Sci Rep. 2015 Mar 2;5:8673. doi: 10.1038/srep08673. PMID:25728374 doi:http://dx.doi.org/10.1038/srep08673
- ↑ Chang YY, Hsu CH. Multiple conformations of the loop region confers heat-resistance of SsArd1, a thermophilic NatA. Chembiochem. 2015 Nov 23. doi: 10.1002/cbic.201500568. PMID:26593285 doi:http://dx.doi.org/10.1002/cbic.201500568
|
