3bes

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Template:STRUCTURE 3bes

Contents

Structure of a Poxvirus ifngbp/ifng Complex

Template:ABSTRACT PUBMED 18252829

Disease

[IFNG_HUMAN] In Caucasians, genetic variation in IFNG is associated with the risk of aplastic anemia (AA) [MIM:609135]. AA is a rare disease in which the reduction of the circulating blood cells results from damage to the stem cell pool in bone marrow. In most patients, the stem cell lesion is caused by an autoimmune attack. T-lymphocytes, activated by an endogenous or exogenous, and most often unknown antigenic stimulus, secrete cytokines, including IFN-gamma, which would in turn be able to suppress hematopoiesis.

Function

[IFNG_HUMAN] Produced by lymphocytes activated by specific antigens or mitogens. IFN-gamma, in addition to having antiviral activity, has important immunoregulatory functions. It is a potent activator of macrophages, it has antiproliferative effects on transformed cells and it can potentiate the antiviral and antitumor effects of the type I interferons.

About this Structure

3bes is a 2 chain structure with sequence from Ectromelia virus and Homo sapiens. The August 2010 RCSB PDB Molecule of the Month feature on Interferons by David Goodsell is 10.2210/rcsb_pdb/mom_2010_8. Full crystallographic information is available from OCA.

Reference

  • Nuara AA, Walter LJ, Logsdon NJ, Yoon SI, Jones BC, Schriewer JM, Buller RM, Walter MR. Structure and mechanism of IFN-gamma antagonism by an orthopoxvirus IFN-gamma-binding protein. Proc Natl Acad Sci U S A. 2008 Feb 12;105(6):1861-6. Epub 2008 Feb 5. PMID:18252829

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