1dg3: Difference between revisions
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1dg3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1dg3 OCA], [http://www.ebi.ac.uk/pdbsum/1dg3 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1dg3 RCSB]</span> | |||
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 19:41:02 2008'' | ||
Revision as of 19:41, 30 March 2008
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
STRUCTURE OF HUMAN GUANYLATE BINDING PROTEIN-1 IN NUCLEOTIDE FREE FORM
OverviewOverview
Interferon-gamma is an immunomodulatory substance that induces the expression of many genes to orchestrate a cellular response and establish the antiviral state of the cell. Among the most abundant antiviral proteins induced by interferon-gamma are guanylate-binding proteins such as GBP1 and GBP2. These are large GTP-binding proteins of relative molecular mass 67,000 with a high-turnover GTPase activity and an antiviral effect. Here we have determined the crystal structure of full-length human GBP1 to 1.8 A resolution. The amino-terminal 278 residues constitute a modified G domain with a number of insertions compared to the canonical Ras structure, and the carboxy-terminal part is an extended helical domain with unique features. From the structure and biochemical experiments reported here, GBP1 appears to belong to the group of large GTP-binding proteins that includes Mx and dynamin, the common property of which is the ability to undergo oligomerization with a high concentration-dependent GTPase activity.
About this StructureAbout this Structure
1DG3 is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
ReferenceReference
Structure of human guanylate-binding protein 1 representing a unique class of GTP-binding proteins., Prakash B, Praefcke GJ, Renault L, Wittinghofer A, Herrmann C, Nature. 2000 Feb 3;403(6769):567-71. PMID:10676968
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