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6ag4

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Crystal structure of Ard1 N-terminal acetyltransferase H88A/E127A mutant from Sulfolobus solfataricus

Structural highlights

6ag4 is a 1 chain structure with sequence from Saccharolobus solfataricus P2. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.256Å
Ligands:	, ,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

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

The common mechanism of N-acetyltransferases (NATs) is a water-mediated catalysis, which is not conducive to thermophilic acetyltransferases. The crystal structure of SsArd1 shows an ordered catalytic water molecule in a trap formed by the residues H88 and E127. Structure-guided mutagenesis, kinetic studies and MD simulation indicated that the turnover rates of H88A, E127A and H88A/E127A mutants were low, but that of the H88E/E127H mutant could be restored to the level of the wild type.

Adaptation of thermophilic acetyltransferase to a water-mediated catalytic mechanism.,Chang YY, Hagawa S, Hsu CH Chem Commun (Camb). 2020 Sep 10;56(72):10537-10540. doi: 10.1039/d0cc04305b. PMID:32780067^[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, Hagawa S, Hsu CH. Adaptation of thermophilic acetyltransferase to a water-mediated catalytic mechanism. Chem Commun (Camb). 2020 Sep 10;56(72):10537-10540. doi: 10.1039/d0cc04305b. PMID:32780067 doi:http://dx.doi.org/10.1039/d0cc04305b

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/6ag4"

Categories: Large Structures | Saccharolobus solfataricus P2 | Chang YY | Hsu CH

@@ Line 3: / Line 3: @@
 <StructureSection load='6ag4' size='340' side='right'caption='[[6ag4]], [[Resolution|resolution]] 2.26&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[6ag4]] is a 1 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=6AG4 OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=6AG4 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[6ag4]] is a 1 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=6AG4 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6AG4 FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACO:ACETYL+COENZYME+*A'>ACO</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</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]] 2.256&#8491;</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SsArd1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=273057 SACS2])</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACO:ACETYL+COENZYME+*A'>ACO</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=6ag4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6ag4 OCA], [http://pdbe.org/6ag4 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6ag4 RCSB], [http://www.ebi.ac.uk/pdbsum/6ag4 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6ag4 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=6ag4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6ag4 OCA], [https://pdbe.org/6ag4 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6ag4 RCSB], [https://www.ebi.ac.uk/pdbsum/6ag4 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6ag4 ProSAT]</span></td></tr>
 </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;">
 == Publication Abstract from PubMed ==
@@ Line 22: / Line 24: @@
 </StructureSection>
 [[Category: Large Structures]]
-[[Category: Sacs2]]
+[[Category: Saccharolobus solfataricus P2]]
-[[Category: Chang, Y Y]]
+[[Category: Chang YY]]
-[[Category: Hsu, C H]]
+[[Category: Hsu CH]]
-[[Category: Acetyltransferase]]
-[[Category: Transferase]]

6ag4

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Current revision

Crystal structure of Ard1 N-terminal acetyltransferase H88A/E127A mutant from Sulfolobus solfataricus

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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