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3zvg

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Revision as of 23:57, 24 December 2014

3C protease of Enterovirus 68 complexed with Michael receptor inhibitor 98

Structural highlights

3zvg is a 1 chain structure with sequence from Human enterovirus 68. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	3zvb, 3zv8, 3zva, 3zve, 3zvc, 3zv9, 3zvf, 3zvd
Activity:	Picornain 3C, with EC number 3.4.22.28
Resources:	FirstGlance, OCA, RCSB, PDBsum

Function

[A1E4A3_9ENTO] Protein 2C associates with and induces structural rearrangements of intracellular membranes. It displays RNA-binding, nucleotide binding and NTPase activities (By similarity).[SAAS:SAAS000199_004_016611] Protein 3C is a cysteine protease that generates mature viral proteins from the precursor polyprotein. In addition to its proteolytic activity, it binds to viral RNA, and thus influences viral genome replication. RNA and substrate bind co-operatively to the protease (By similarity).[SAAS:SAAS000199_004_042266] RNA-directed RNA polymerase 3D-POL replicates genomic and antigenomic RNA by recognizing replications specific signals (By similarity).[SAAS:SAAS000199_004_010047]

Publication Abstract from PubMed

We have determined the cleavage specificity and the crystal structure of the 3C protease of enterovirus 68 (EV68 3C(pro)). The protease exhibits a typical chymotrypsin fold with a Cys...His...Glu catalytic triad; its three-dimensional structure is closely related to that of the 3C(pro) of rhinovirus 2 as well as to that of poliovirus. The phylogenetic position of the EV68 3C(pro) between the corresponding enzymes of rhinoviruses on the one hand and enteroviruses on the other prompted us to use the crystal structure for the design of irreversible inhibitors, with the goal of discovering broad-spectrum antiviral compounds. We synthesized a series of peptidic alpha,beta-unsaturated ethyl esters of increasing length and for each inhibitor candidate, we determined a crystal structure of its complex with the EV68 3C(pro), which served as the basis for the next design round. To exhibit inhibitory activity, compounds must span at least P3 to P1' ; the most potent inhibitors comprise P4 to P1' . Inhibitory activities were found against the purified 3C protease of EV68 as well as with replicons for poliovirus and EV71 (EC(50) = 0.5 muM for the best compound). Antiviral activities were determined using cell cultures infected with EV71, poliovirus, echovirus 11, and various rhinovirus serotypes. The most potent inhibitor, SG85, exhibited activity with EC(50) values of approximately 180 nM against EV71 and approximately 60 nM against human rhinovirus 14 in a live virus-cell-based assay. Even the shorter SG75, spanning only P3 to P1' , displayed significant activity (EC(50) = 2 to 5 muM) against various rhinoviruses.

3C protease of enterovirus 68: Structure-based design of Michael acceptor inhibitors and their broad-spectrum antiviral effects against picornaviruses.,Tan J, George S, Kusov Y, Perbandt M, Anemuller S, Mesters JR, Norder H, Coutard B, Lacroix C, Leyssen P, Neyts J, Hilgenfeld R J Virol. 2013 Feb 6. PMID:23388726^[1]

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

References

↑ Tan J, George S, Kusov Y, Perbandt M, Anemuller S, Mesters JR, Norder H, Coutard B, Lacroix C, Leyssen P, Neyts J, Hilgenfeld R. 3C protease of enterovirus 68: Structure-based design of Michael acceptor inhibitors and their broad-spectrum antiviral effects against picornaviruses. J Virol. 2013 Feb 6. PMID:23388726 doi:http://dx.doi.org/10.1128/JVI.01123-12

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/3zvg"

@@ Line 8: / Line 8: @@
 <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=3zvg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3zvg OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3zvg RCSB], [http://www.ebi.ac.uk/pdbsum/3zvg PDBsum]</span></td></tr>
 </table>
+== Function ==
+[[http://www.uniprot.org/uniprot/A1E4A3_9ENTO A1E4A3_9ENTO]] Protein 2C associates with and induces structural rearrangements of intracellular membranes. It displays RNA-binding, nucleotide binding and NTPase activities (By similarity).[SAAS:SAAS000199_004_016611]  Protein 3C is a cysteine protease that generates mature viral proteins from the precursor polyprotein. In addition to its proteolytic activity, it binds to viral RNA, and thus influences viral genome replication. RNA and substrate bind co-operatively to the protease (By similarity).[SAAS:SAAS000199_004_042266]  RNA-directed RNA polymerase 3D-POL replicates genomic and antigenomic RNA by recognizing replications specific signals (By similarity).[SAAS:SAAS000199_004_010047]
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==

3zvg

From Proteopedia

Revision as of 23:57, 24 December 2014

3C protease of Enterovirus 68 complexed with Michael receptor inhibitor 98

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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