4kvm: Difference between revisions
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
==The NatA (Naa10p/Naa15p) amino-terminal acetyltransferase complex bound to a bisubstrate analog== | ==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=''> | <StructureSection load='4kvm' size='340' side='right'caption='[[4kvm]], [[Resolution|resolution]] 2.60Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[4kvm]] is a 12 chain structure with sequence from [ | <table><tr><td colspan='2'>[[4kvm]] is a 12 chain structure with sequence from [https://en.wikipedia.org/wiki/Fission_yeast Fission yeast]. 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='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=1XE:[5-(6- | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=1XE:[5-(6-amino-9H-purin-9-yl)-4-hydroxy-3-(phosphonooxy)furan-2-yl]methyl+(3R)-4-{[3-({(E)-2-[(2,2-dihydroxyethyl)sulfanyl]ethenyl}amino)-3-oxopropyl]amino}-3-hydroxy-2,2-dimethyl-4-oxobutyl+dihydrogen+diphosphate'>1XE</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> | ||
<tr id=' | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[4kvo|4kvo]], [[4kvx|4kvx]]</div></td></tr> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">nat1, SPCC338.07c ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=284812 Fission yeast]), ard1, SPAC15E1.08 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=284812 Fission yeast])</td></tr> | |||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">nat1, SPCC338.07c ([ | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/N-terminal_amino-acid_N(alpha)-acetyltransferase_NatA N-terminal amino-acid N(alpha)-acetyltransferase NatA], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.3.1.255 2.3.1.255] </span></td></tr> | ||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <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> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | |||
</table> | </table> | ||
== Function == | == 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). [[https://www.uniprot.org/uniprot/ARD1_SCHPO ARD1_SCHPO]] 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 (By similarity). | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
== Publication Abstract from PubMed == | == Publication Abstract from PubMed == | ||
| Line 27: | Line 26: | ||
</StructureSection> | </StructureSection> | ||
[[Category: Fission yeast]] | [[Category: Fission yeast]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: Liszczak, G P]] | [[Category: Liszczak, G P]] | ||
[[Category: Marmorstein, R Q]] | [[Category: Marmorstein, R Q]] | ||
Revision as of 09:54, 22 September 2021
The NatA (Naa10p/Naa15p) amino-terminal acetyltransferase complex bound to a bisubstrate analogThe NatA (Naa10p/Naa15p) amino-terminal acetyltransferase complex bound to a bisubstrate analog
Structural highlights
Function[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). [ARD1_SCHPO] 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 (By similarity). Publication Abstract from PubMedN-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[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
|
| ||||||||||||||||||||||