3eti

From Proteopedia

(Difference between revisions)

Revision as of 22:07, 2 December 2018

Structure of a cubic crystal form of X (ADRP) domain from FCoV

Structural highlights

3eti is a 8 chain structure with sequence from Fcov. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[R1AB_FIPV] The replicase polyprotein of coronaviruses is a multifunctional protein: it contains the activities necessary for the transcription of negative stranded RNA, leader RNA, subgenomic mRNAs and progeny virion RNA as well as proteinases responsible for the cleavage of the polyprotein into functional products. The papain-like proteinase 1 (PLP1) and papain-like proteinase 2 (PLP2) are responsible for the cleavages located at the N-terminus of the replicase polyprotein. In addition, PLP2 possesses a deubiquitinating/deISGylating activity and processes both 'Lys-48'- and 'Lys-63'-linked polyubiquitin chains from cellular substrates. PLP2 also antagonizes innate immune induction of type I interferon by blocking the nuclear translocation of host IRF-3 (By similarity). The main proteinase 3CL-PRO is responsible for the majority of cleavages as it cleaves the C-terminus of replicase polyprotein at 11 sites. Recognizes substrates containing the core sequence [ILMVF]-Q-|-[SGACN]. Inhibited by the substrate-analog Cbz-Val-Asn-Ser-Thr-Leu-Gln-CMK. Also contains an ADP-ribose-1-phosphate (ADRP)-binding function (By similarity). The helicase which contains a zinc finger structure displays RNA and DNA duplex-unwinding activities with 5' to 3' polarity. ATPase activity is strongly stimulated by poly(U), poly(dT), poly(C), poly(dA), but not by poly(G) (By similarity). The exoribonuclease acts on both ssRNA and dsRNA in a 3' to 5' direction (By similarity). Nsp7-nsp8 hexadecamer may possibly confer processivity to the polymerase, maybe by binding to dsRNA or by producing primers utilized by the latter (By similarity). Nsp9 is a ssRNA-binding protein (By similarity). NendoU is a Mn(2+)-dependent, uridylate-specific enzyme, which leaves 2'-3'-cyclic phosphates 5' to the cleaved bond (By similarity).

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The structure of the X (or ADRP) domain of a pathogenic variant of feline coronavirus (FCoV) has been determined in tetragonal and cubic crystal forms to 3.1 and 2.2 A resolution, respectively. In the tetragonal crystal form, glycerol-3-phosphate was observed in the ADP-ribose-binding site. Both crystal forms contained large solvent channels and had a solvent content of higher than 70%. Only very weak binding of this domain to ADP-ribose was detected in vitro. However, the structure with ADP-ribose bound was determined in the cubic crystal form at 3.9 A resolution. The structure of the FCoV X domain had the expected macro-domain fold and is the first structure of this domain from a coronavirus belonging to subgroup 1a.

Structure of the X (ADRP) domain of nsp3 from feline coronavirus.,Wojdyla JA, Manolaridis I, Snijder EJ, Gorbalenya AE, Coutard B, Piotrowski Y, Hilgenfeld R, Tucker PA Acta Crystallogr D Biol Crystallogr. 2009 Dec;65(Pt 12):1292-300. Epub, 2009 Nov 17. PMID:19966415^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Wojdyla JA, Manolaridis I, Snijder EJ, Gorbalenya AE, Coutard B, Piotrowski Y, Hilgenfeld R, Tucker PA. Structure of the X (ADRP) domain of nsp3 from feline coronavirus. Acta Crystallogr D Biol Crystallogr. 2009 Dec;65(Pt 12):1292-300. Epub, 2009 Nov 17. PMID:19966415 doi:10.1107/S0907444909040074

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3eti"

@@ Line 1: / Line 1: @@
 ==Structure of a cubic crystal form of X (ADRP) domain from FCoV==
 <StructureSection load='3eti' size='340' side='right' caption='[[3eti]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
 == Structural highlights ==
 <table><tr><td colspan='2'>[[3eti]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Fcov Fcov]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ETI OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3ETI FirstGlance]. <br>
-</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=3eti FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3eti OCA], [http://pdbe.org/3eti PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3eti RCSB], [http://www.ebi.ac.uk/pdbsum/3eti PDBsum]</span></td></tr>
+</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=3eti FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3eti OCA], [http://pdbe.org/3eti PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3eti RCSB], [http://www.ebi.ac.uk/pdbsum/3eti PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3eti ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 11: / Line 12: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/et/3eti_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/et/3eti_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>

3eti

From Proteopedia

Revision as of 22:07, 2 December 2018

Structure of a cubic crystal form of X (ADRP) domain from FCoV

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox