4kvm: Difference between revisions
New page: '''Unreleased structure''' The entry 4kvm is ON HOLD Authors: Liszczak, G.P., Marmorstein, R.Q. Description: The NatA (Naa10p/Naa15p) amino-terminal acetyltransferase complex bound to ... |
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The | ==The NatA (Naa10p/Naa15p) amino-terminal acetyltransferase complex bound to a bisubstrate analog== | ||
<StructureSection load='4kvm' size='340' side='right'caption='[[4kvm]], [[Resolution|resolution]] 2.60Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[4kvm]] is a 12 chain structure with sequence from [https://en.wikipedia.org/wiki/Schizosaccharomyces_pombe_972h- Schizosaccharomyces pombe 972h-] and [https://en.wikipedia.org/wiki/Synthetic_construct Synthetic construct]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4KVM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4KVM FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.597Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=1XE:[[5-(6-aminopurin-9-yl)-4-oxidanyl-3-phosphonooxy-furan-2-yl]methoxy-oxidanyl-phosphoryl]+[(3R)-4-[[3-[[(E)-2-[2,2-bis(oxidanyl)ethylsulfanyl]ethenyl]amino]-3-oxidanylidene-propyl]amino]-2,2-dimethyl-3-oxidanyl-4-oxidanylidene-butyl]+hydrogen+phosphate'>1XE</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</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'>[https://proteopedia.org/fgij/fg.htm?mol=4kvm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4kvm OCA], [https://pdbe.org/4kvm PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4kvm RCSB], [https://www.ebi.ac.uk/pdbsum/4kvm PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4kvm ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/NAT1_SCHPO NAT1_SCHPO] Non-catalytic component of the NatA N-terminal acetyltransferase, which catalyzes acetylation of proteins beginning with Met-Ser, Met-Gly and Met-Ala. N-acetylation plays a role in normal eukaryotic translation and processing, protect against proteolytic degradation and protein turnover. nat1 anchors ard1 and nat5 to the ribosome and may present the N termini of nascent polypeptides for acetylation (By similarity). | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
N-terminal acetylation is ubiquitous among eukaryotic proteins and controls a myriad of biological processes. Of the N-terminal acetyltransferases (NATs) that facilitate this cotranslational modification, the heterodimeric NatA complex has the most diversity for substrate selection and modifies the majority of all N-terminally acetylated proteins. Here, we report the X-ray crystal structure of the 100-kDa holo-NatA complex from Schizosaccharomyces pombe, in the absence and presence of a bisubstrate peptide-CoA-conjugate inhibitor, as well as the structure of the uncomplexed Naa10p catalytic subunit. The NatA-Naa15p auxiliary subunit contains 13 tetratricopeptide motifs and adopts a ring-like topology that wraps around the NatA-Naa10p subunit, an interaction that alters the Naa10p active site for substrate-specific acetylation. These studies have implications for understanding the mechanistic details of other NAT complexes and how regulatory subunits modulate the activity of the broader family of protein acetyltransferases. | |||
Molecular basis for N-terminal acetylation by the heterodimeric NatA complex.,Liszczak G, Goldberg JM, Foyn H, Petersson EJ, Arnesen T, Marmorstein R Nat Struct Mol Biol. 2013 Aug 4. doi: 10.1038/nsmb.2636. PMID:23912279<ref>PMID:23912279</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 4kvm" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Schizosaccharomyces pombe 972h-]] | |||
[[Category: Synthetic construct]] | |||
[[Category: Liszczak GP]] | |||
[[Category: Marmorstein RQ]] | |||