This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
1vpt
From Proteopedia
(New page: 200px<br /><applet load="1vpt" size="450" color="white" frame="true" align="right" spinBox="true" caption="1vpt, resolution 1.8Å" /> '''AS11 VARIANT OF VACCI...) |
|||
| Line 1: | Line 1: | ||
| - | [[Image:1vpt.jpg|left|200px]]<br /><applet load="1vpt" size=" | + | [[Image:1vpt.jpg|left|200px]]<br /><applet load="1vpt" size="350" color="white" frame="true" align="right" spinBox="true" |
caption="1vpt, resolution 1.8Å" /> | caption="1vpt, resolution 1.8Å" /> | ||
'''AS11 VARIANT OF VACCINIA VIRUS PROTEIN VP39 IN COMPLEX WITH S-ADENOSYL-L-METHIONINE'''<br /> | '''AS11 VARIANT OF VACCINIA VIRUS PROTEIN VP39 IN COMPLEX WITH S-ADENOSYL-L-METHIONINE'''<br /> | ||
==Overview== | ==Overview== | ||
| - | VP39 is a bifunctional vaccinia virus protein that acts as both an mRNA | + | VP39 is a bifunctional vaccinia virus protein that acts as both an mRNA cap-specific RNA 2'-O-methyltransferase and a poly(A) polymerase processivity factor. Here, we report the 1.85 A crystal structure of a VP39 variant complexed with its AdoMet cofactor. VP39 comprises a single core domain with structural similarity to the catalytic domains of other methyltransferases. Surface features and mutagenesis data suggest two possible RNA-binding sites with novel underlying architecture, one of which forms a cleft spanning the region adjacent to the methyltransferase active site. This report provides a prototypic structure for an RNA methyltransferase, a protein that interacts with the mRNA 5' cap, and an intact poxvirus protein. |
==About this Structure== | ==About this Structure== | ||
| - | 1VPT is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Vaccinia_virus Vaccinia virus] with SAM as [http://en.wikipedia.org/wiki/ligand ligand]. Active as [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] Full crystallographic information is available from [http:// | + | 1VPT is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Vaccinia_virus Vaccinia virus] with <scene name='pdbligand=SAM:'>SAM</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Active as [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] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1VPT OCA]. |
==Reference== | ==Reference== | ||
| Line 14: | Line 14: | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
[[Category: Vaccinia virus]] | [[Category: Vaccinia virus]] | ||
| - | [[Category: Gershon, P | + | [[Category: Gershon, P D.]] |
| - | [[Category: Hodel, A | + | [[Category: Hodel, A E.]] |
| - | [[Category: Quiocho, F | + | [[Category: Quiocho, F A.]] |
[[Category: Shi, X.]] | [[Category: Shi, X.]] | ||
[[Category: SAM]] | [[Category: SAM]] | ||
| Line 24: | Line 24: | ||
[[Category: vaccinia]] | [[Category: vaccinia]] | ||
| - | ''Page seeded by [http:// | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 15:37:20 2008'' |
Revision as of 13:37, 21 February 2008
|
AS11 VARIANT OF VACCINIA VIRUS PROTEIN VP39 IN COMPLEX WITH S-ADENOSYL-L-METHIONINE
Overview
VP39 is a bifunctional vaccinia virus protein that acts as both an mRNA cap-specific RNA 2'-O-methyltransferase and a poly(A) polymerase processivity factor. Here, we report the 1.85 A crystal structure of a VP39 variant complexed with its AdoMet cofactor. VP39 comprises a single core domain with structural similarity to the catalytic domains of other methyltransferases. Surface features and mutagenesis data suggest two possible RNA-binding sites with novel underlying architecture, one of which forms a cleft spanning the region adjacent to the methyltransferase active site. This report provides a prototypic structure for an RNA methyltransferase, a protein that interacts with the mRNA 5' cap, and an intact poxvirus protein.
About this Structure
1VPT is a Single protein structure of sequence from Vaccinia virus with as ligand. Active as Polynucleotide adenylyltransferase, with EC number 2.7.7.19 Full crystallographic information is available from OCA.
Reference
The 1.85 A structure of vaccinia protein VP39: a bifunctional enzyme that participates in the modification of both mRNA ends., Hodel AE, Gershon PD, Shi X, Quiocho FA, Cell. 1996 Apr 19;85(2):247-56. PMID:8612277
Page seeded by OCA on Thu Feb 21 15:37:20 2008
