1d9c

From Proteopedia

(Difference between revisions)

Revision as of 23:21, 10 September 2015

BOVINE INTERFERON-GAMMA AT 2.0 ANGSTROMS

Structural highlights

1d9c is a 2 chain structure with sequence from Bovin. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	1hig, 1rfb, 2rig, 1d9g
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[IFNG_BOVIN] 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.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The structure of bovine interferon-gamma (IFN-gamma) was determined by multiple isomorphous replacement at 2.0 A resolution. Bovine IFN-gamma crystallizes in two related crystal forms. Crystal form 1 diffracts to 2.9 A resolution and is reproducible and stable to derivatization. Crystal form 2 diffracts to 2.0 A resolution, but shows significant non-isomorphism from crystal to crystal. The previously determined structures of several different species of INF-gamma were either at too low a resolution [human, 1hig; Ealick et al. (1991), Science, 252, 698-702] or were too inaccurate [bovine, 1rfb; Samudzi & Rubin (1993), Acta Cryst. D49(6), 505-512; rabbit, 2rig; Samudzi et al. (1991), J. Biol. Chem. 266(32), 21791-21797] for the structure to be solved by molecular replacement. The structure was solved in crystal form 1 using two derivatives produced by chemically modifying two free cysteine residues that were introduced by site-directed mutagenesis (Ser30Cys, Asn59Cys). After model building and refinement, the final R value was 21.8% (R(free) = 30.9%) for all data in the resolution range 8.0-2.9 A. The crystal form 1 structure was then used as a molecular-replacement model for crystal form 2 data collected from a flash-cooled crystal. Subsequent model building and refinement, using all data in the resolution range 15.0-2.0 A, gave an R value of 19.7% and an R(free) of 27.5%. Pairwise comparison of C(alpha) positions of bovine IFN-gamma (BOV) and the previously determined 1rfb and 2rig structures indicated some significant differences in the models (r.m.s.d. values for BOV to 1rfb, 4.3 A; BOV to 2rig, 4.0 A). An assessment of the quality of the structures was made using the 3D-1D algorithm [Eisenberg et al. (1992), Faraday Discuss. 93, 25-34]. The resulting statistical scoring indicated that BOV was consistent with expected criteria for a 2.0 A structure, whereas both 1rfb and 2rig fell below acceptable criteria.

The 2.0 A structure of bovine interferon-gamma; assessment of the structural differences between species.,Randal M, Kossiakoff AA Acta Crystallogr D Biol Crystallogr. 2000 Jan;56(Pt 1):14-24. PMID:10666622^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Randal M, Kossiakoff AA. The 2.0 A structure of bovine interferon-gamma; assessment of the structural differences between species. Acta Crystallogr D Biol Crystallogr. 2000 Jan;56(Pt 1):14-24. PMID:10666622

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1d9c"

Categories: Bovin | Kossiakoff, A A | Randal, M | Helical homodimer | Immune system

@@ Line 2: / Line 2: @@
 <StructureSection load='1d9c' size='340' side='right' caption='[[1d9c]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1d9c]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1D9C OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1D9C FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1d9c]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Bovin Bovin]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1D9C OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1D9C FirstGlance]. <br>
 </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1hig|1hig]], [[1rfb|1rfb]], [[2rig|2rig]], [[1d9g|1d9g]]</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=1d9c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1d9c OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1d9c RCSB], [http://www.ebi.ac.uk/pdbsum/1d9c PDBsum]</span></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=1d9c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1d9c OCA], [http://pdbe.org/1d9c PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1d9c RCSB], [http://www.ebi.ac.uk/pdbsum/1d9c PDBsum]</span></td></tr>
 </table>
 == Function ==
@@ Line 26: / Line 26: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 1d9c" style="background-color:#fffaf0;"></div>
 ==See Also==
@@ Line 33: / Line 34: @@
 __TOC__
 </StructureSection>
-[[Category: Bos taurus]]
+[[Category: Bovin]]
 [[Category: Kossiakoff, A A]]
 [[Category: Randal, M]]
 [[Category: Helical homodimer]]
 [[Category: Immune system]]

1d9c

From Proteopedia

Revision as of 23:21, 10 September 2015

BOVINE INTERFERON-GAMMA AT 2.0 ANGSTROMS

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox