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==DC26 MUTANT OF VACCINIA VIRUS PROTEIN VP39 IN COMPLEX WITH S-ADENOSYLHOMOCYSTEINE AND M7G(5')PPPG==
==DC26 MUTANT OF VACCINIA VIRUS PROTEIN VP39 IN COMPLEX WITH S-ADENOSYLHOMOCYSTEINE AND M7G(5')PPPG==
<StructureSection load='1v39' size='340' side='right' caption='[[1v39]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
<StructureSection load='1v39' size='340' side='right'caption='[[1v39]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1v39]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Vaccw Vaccw]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1V39 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1V39 FirstGlance]. <br>
<table><tr><td colspan='2'>[[1v39]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Vaccinia_virus_WR Vaccinia virus WR]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1V39 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1V39 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=M7G:7N-METHYL-8-HYDROGUANOSINE-5-DIPHOSPHATE'>M7G</scene>, <scene name='pdbligand=SAH:S-ADENOSYL-L-HOMOCYSTEINE'>SAH</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]] 1.8&#8491;</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Polynucleotide_adenylyltransferase Polynucleotide adenylyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.19 2.7.7.19] </span></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=M7G:7N-METHYL-8-HYDROGUANOSINE-5-DIPHOSPHATE'>M7G</scene>, <scene name='pdbligand=SAH:S-ADENOSYL-L-HOMOCYSTEINE'>SAH</scene></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=1v39 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1v39 OCA], [http://pdbe.org/1v39 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1v39 RCSB], [http://www.ebi.ac.uk/pdbsum/1v39 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1v39 ProSAT]</span></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=1v39 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1v39 OCA], [https://pdbe.org/1v39 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1v39 RCSB], [https://www.ebi.ac.uk/pdbsum/1v39 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1v39 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/MCE_VACCW MCE_VACCW]] Displays methyltransferase, positive regulation of the poly(A) polymerase and transcription elongation activities. Involved in the modification of both mRNA ends and in intermediate and late gene positive transcription elongation. At the mRNAs 5' end, methylates the ribose 2' OH group of the first transcribed nucleotide, thereby producing a 2'-O-methylpurine cap. At the 3' end, functions as a processivity factor which stimulates the activity of the viral poly(A) polymerase VP55 that creates mRNA's poly(A) tail. In the presence of VP39, VP55 does not dissociate from the RNA allowing tail elongation to around 250 adenylates.<ref>PMID:1313572</ref> <ref>PMID:1670500</ref> <ref>PMID:12359447</ref>
[https://www.uniprot.org/uniprot/MCE_VACCW MCE_VACCW] Displays methyltransferase, positive regulation of the poly(A) polymerase and transcription elongation activities. Involved in the modification of both mRNA ends and in intermediate and late gene positive transcription elongation. At the mRNAs 5' end, methylates the ribose 2' OH group of the first transcribed nucleotide, thereby producing a 2'-O-methylpurine cap. At the 3' end, functions as a processivity factor which stimulates the activity of the viral poly(A) polymerase VP55 that creates mRNA's poly(A) tail. In the presence of VP39, VP55 does not dissociate from the RNA allowing tail elongation to around 250 adenylates.<ref>PMID:1313572</ref> <ref>PMID:1670500</ref> <ref>PMID:12359447</ref>  
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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</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=1v39 ConSurf].
</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=1v39 ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The specific binding of N7-methylguanine cap analogues to the RNA methyltransferase VP39 was observed through X-ray crystallography, providing a prototypical structure for a complex between a protein and an mRNA 5' cap.
Specific protein recognition of an mRNA cap through its alkylated base.,Hodel AE, Gershon PD, Shi X, Wang SM, Quiocho FA Nat Struct Biol. 1997 May;4(5):350-4. PMID:9145102<ref>PMID:9145102</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1v39" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[Poly(A) Polymerase|Poly(A) Polymerase]]
*[[Poly(A) polymerase 3D structures|Poly(A) polymerase 3D structures]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Polynucleotide adenylyltransferase]]
[[Category: Large Structures]]
[[Category: Vaccw]]
[[Category: Vaccinia virus WR]]
[[Category: Gershon, P D]]
[[Category: Gershon PD]]
[[Category: Hodel, A E]]
[[Category: Hodel AE]]
[[Category: Quiocho, F A]]
[[Category: Quiocho FA]]
[[Category: Methyltransferase]]
[[Category: Mrna processing]]
[[Category: Rna cap]]
[[Category: Transcription]]
[[Category: Vaccinia]]

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