1tq4

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Line 4: Line 4:
|PDB= 1tq4 |SIZE=350|CAPTION= <scene name='initialview01'>1tq4</scene>, resolution 1.95&Aring;
|PDB= 1tq4 |SIZE=350|CAPTION= <scene name='initialview01'>1tq4</scene>, resolution 1.95&Aring;
|SITE=
|SITE=
-
|LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene> and <scene name='pdbligand=GDP:GUANOSINE-5'-DIPHOSPHATE'>GDP</scene>
+
|LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene> and <scene name='pdbligand=GDP:GUANOSINE-5&#39;-DIPHOSPHATE'>GDP</scene>
|ACTIVITY=
|ACTIVITY=
|GENE= IIGP1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 Mus musculus])
|GENE= IIGP1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 Mus musculus])
Line 35: Line 35:
[[Category: interferon gamma]]
[[Category: interferon gamma]]
-
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 14:21:41 2008''
+
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 23 13:46:15 2008''

Revision as of 11:46, 23 March 2008

Image:1tq4.jpg


PDB ID 1tq4

Drag the structure with the mouse to rotate
, resolution 1.95Å
Ligands: and
Gene: IIGP1 (Mus musculus)
Coordinates: save as pdb, mmCIF, xml



Crystal Structure of IIGP1: a paradigm for interferon inducible p47 resistance GTPases


Overview

Interferon-inducible p47 GTPases are critical mediators of cell-autonomous resistance against several intracellular pathogens. Here we present the first crystal structure of a member of this novel GTPase family, IIGP1, in its nucleotide-free, GDP-, and GppNHp-bound form. The structure shows a Ras-like G domain between an N-terminal three-helix bundle and a complex system of C-terminal helices and loops. Sequence comparison and secondary structure prediction suggest the IIGP1 structure to be a valid model for the p47 GTPase family. The IIGP1 crystals contain a noncrystallographic dimer. We show that the dimer is required for cooperative GTP hydrolysis and GTP-dependent oligomerization of IIGP1. We also present the GDP- and GppNHp-bound monomeric structures of two dimer interface mutants. Our structures direct approaches to the analysis of the catalytic mechanism of IIGP1 and provide a coherent basis for structure-function studies aimed at elucidating the mechanistic basis of pathogen resistance caused by these enigmatic GTPases.

About this Structure

1TQ4 is a Single protein structure of sequence from Mus musculus. Full crystallographic information is available from OCA.

Reference

Crystal structure of IIGP1: a paradigm for interferon-inducible p47 resistance GTPases., Ghosh A, Uthaiah R, Howard J, Herrmann C, Wolf E, Mol Cell. 2004 Sep 10;15(5):727-39. PMID:15350217

Page seeded by OCA on Sun Mar 23 13:46:15 2008

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1tq4"
Personal tools