2iph
From Proteopedia
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==X-ray Structure at 1.75 A Resolution of a Norovirus Protease Linked to an Active Site Directed Peptide Inhibitor== | ==X-ray Structure at 1.75 A Resolution of a Norovirus Protease Linked to an Active Site Directed Peptide Inhibitor== | ||
| - | <StructureSection load='2iph' size='340' side='right' caption='[[2iph]], [[Resolution|resolution]] 1.75Å' scene=''> | + | <StructureSection load='2iph' size='340' side='right'caption='[[2iph]], [[Resolution|resolution]] 1.75Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[2iph]] is a 2 chain structure with sequence from [ | + | <table><tr><td colspan='2'>[[2iph]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Southampton_virus_(serotype_3) Southampton virus (serotype 3)]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2IPH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2IPH FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=LGG:N-ACETYL-L-ALPHA-GLUTAMYL-L-PHENYLALANYL-L-GLUTAMINYL-N-[(1S)-4-AMINO-1-(2-CARBOXYETHYL)-4-OXOBUTYL]-L-LEUCINAMIDE'>LGG</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]] 1.75Å</td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=LGG:N-ACETYL-L-ALPHA-GLUTAMYL-L-PHENYLALANYL-L-GLUTAMINYL-N-[(1S)-4-AMINO-1-(2-CARBOXYETHYL)-4-OXOBUTYL]-L-LEUCINAMIDE'>LGG</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=2iph FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2iph OCA], [https://pdbe.org/2iph PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2iph RCSB], [https://www.ebi.ac.uk/pdbsum/2iph PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2iph ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
| - | [ | + | [https://www.uniprot.org/uniprot/POLG_SOUV3 POLG_SOUV3] Protein p48 may play a role in viral replication by interacting with host VAPA, a vesicle-associated membrane protein that plays a role in SNARE-mediated vesicle fusion. This interaction may target replication complex to intracellular membranes (By similarity). NTPase presumably plays a role in replication. Despite having similarities with helicases, does not seem to display any helicase activity (By similarity). Protein P22 may play a role in targeting replication complex to intracellular membranes. Viral genome-linked protein is covalently linked to the 5'-end of the positive-strand, negative-strand genomic RNAs and subgenomic RNA. Acts as a genome-linked replication primer. May recruit ribosome to viral RNA thereby promoting viral proteins translation (By similarity). 3C-like protease processes the polyprotein: 3CLpro-RdRp is first released by autocleavage, then all other proteins are cleaved. May cleave polyadenylate-binding protein thereby inhibiting cellular translation.[PROSITE-ProRule:PRU00870] RNA-directed RNA polymerase replicates genomic and antigenomic RNA by recognizing replications specific signals. Transcribes also a subgenomic mRNA by initiating RNA synthesis internally on antigenomic RNA. This sgRNA codes for structural proteins. Catalyzes the covalent attachment VPg with viral RNAs (By similarity).[PROSITE-ProRule:PRU00539] |
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
| - | <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ip/2iph_consurf.spt"</scriptWhenChecked> | + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ip/2iph_consurf.spt"</scriptWhenChecked> |
| - | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/ | + | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked> |
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
</jmolCheckbox> | </jmolCheckbox> | ||
| - | </jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/ | + | </jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2iph ConSurf]. |
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
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==See Also== | ==See Also== | ||
| - | *[[ | + | *[[Virus protease 3D structures|Virus protease 3D structures]] |
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| - | [[Category: | + | [[Category: Large Structures]] |
| - | [[Category: Hussey | + | [[Category: Hussey RJ]] |
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Current revision
X-ray Structure at 1.75 A Resolution of a Norovirus Protease Linked to an Active Site Directed Peptide Inhibitor
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