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3prm

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Revision as of 09:06, 8 November 2017

Structural analysis of a viral OTU domain protease from the Crimean-Congo Hemorrhagic Fever virus in complex with human ubiquitin

Structural highlights

3prm is a 4 chain structure with sequence from [1] and Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
NonStd Res:
Gene:	UBC (HUMAN)
Activity:	Ubiquitinyl hydrolase 1, with EC number 3.4.19.12
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[UBC_HUMAN] Ubiquitin exists either covalently attached to another protein, or free (unanchored). When covalently bound, it is conjugated to target proteins via an isopeptide bond either as a monomer (monoubiquitin), a polymer linked via different Lys residues of the ubiquitin (polyubiquitin chains) or a linear polymer linked via the initiator Met of the ubiquitin (linear polyubiquitin chains). Polyubiquitin chains, when attached to a target protein, have different functions depending on the Lys residue of the ubiquitin that is linked: Lys-6-linked may be involved in DNA repair; Lys-11-linked is involved in ERAD (endoplasmic reticulum-associated degradation) and in cell-cycle regulation; Lys-29-linked is involved in lysosomal degradation; Lys-33-linked is involved in kinase modification; Lys-48-linked is involved in protein degradation via the proteasome; Lys-63-linked is involved in endocytosis, DNA-damage responses as well as in signaling processes leading to activation of the transcription factor NF-kappa-B. Linear polymer chains formed via attachment by the initiator Met lead to cell signaling. Ubiquitin is usually conjugated to Lys residues of target proteins, however, in rare cases, conjugation to Cys or Ser residues has been observed. When polyubiquitin is free (unanchored-polyubiquitin), it also has distinct roles, such as in activation of protein kinases, and in signaling.^[1] ^[2]

Publication Abstract from PubMed

Crimean-Congo hemorrhagic fever (CCHF) virus is a tick borne ssRNA (-) nairovirus that produces fever, prostration, and severe hemorrhages in humans. With fatality rates for CCHF ranging up to 70% based on several factors, CCHF is considered a dangerous emerging disease. Originally identified in the former U.S.S.R. and the Congo, CCHF has rapidly spread across large sections of Europe, Asia, and Africa. Recent reports have identified a viral homologue of the ovarian tumor protease superfamily (vOTU) within its L-protein. This protease has subsequently been implicated in down-regulation of the interferon type 1 immune response through cleavage of post-translational modifying proteins ubiquitin (Ub) and Ub-like interferon-simulated gene 15 (ISG15). Additionally, homologues of vOTU have been suggested to perform similar roles in the ssRNA (+) Arteriviruses. By utilizing X-ray crystallographic techniques, the structure of vOTU covalently bound to ubiquitin propylamine, a suicide substrate of the enzyme, was elucidated to 1.7 A revealing unique structural elements that define this new subclass of the OTU superfamily. In additions, kinetic studies were carried out with aminomethylcoumarin (AMC) conjugates of monomeric Ub, ISG15, and Neural precursor cell expressed, developmentally down-regulated 8 (NEDD8) substrates in order to provide quantitative insight into vOTU's preference of Ub and Ub-like substrates.

Structural analysis of a viral ovarian tumor domain protease from the Crimean-Congo Hemorrhagic Fever virus in complex with covalently bonded ubiquitin.,Capodagli GC, McKercher MA, Baker EA, Masters EM, Brunzelle JS Dr, Pegan SD Dr J Virol. 2011 Jan 12. PMID:21228232^[3]

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

References

↑ Huang F, Kirkpatrick D, Jiang X, Gygi S, Sorkin A. Differential regulation of EGF receptor internalization and degradation by multiubiquitination within the kinase domain. Mol Cell. 2006 Mar 17;21(6):737-48. PMID:16543144 doi:S1097-2765(06)00120-1
↑ Komander D. The emerging complexity of protein ubiquitination. Biochem Soc Trans. 2009 Oct;37(Pt 5):937-53. doi: 10.1042/BST0370937. PMID:19754430 doi:10.1042/BST0370937
↑ Capodagli GC, McKercher MA, Baker EA, Masters EM, Brunzelle JS Dr, Pegan SD Dr. Structural analysis of a viral ovarian tumor domain protease from the Crimean-Congo Hemorrhagic Fever virus in complex with covalently bonded ubiquitin. J Virol. 2011 Jan 12. PMID:21228232 doi:10.1128/JVI.02496-10

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/3prm"

@@ Line 3: / Line 3: @@
 <StructureSection load='3prm' size='340' side='right' caption='[[3prm]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[3prm]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Cchfv Cchfv] and [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3PRM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3PRM FirstGlance]. <br>
+<table><tr><td colspan='2'>[[3prm]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/ ] and [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3PRM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3PRM FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=3CN:3-AMINOPROPANE'>3CN</scene></td></tr>
 <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
@@ Line 21: / Line 21: @@
 </div>
 <div class="pdbe-citations 3prm" style="background-color:#fffaf0;"></div>
-==See Also==
-*[[Ubiquitin|Ubiquitin]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Cchfv]]
 [[Category: Human]]
 [[Category: Ubiquitinyl hydrolase 1]]

3prm

From Proteopedia

Revision as of 09:06, 8 November 2017

Structural analysis of a viral OTU domain protease from the Crimean-Congo Hemorrhagic Fever virus in complex with human ubiquitin

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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