2irt
From Proteopedia
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|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
+ | |DOMAIN= | ||
+ | |RELATEDENTRY= | ||
+ | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2irt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2irt OCA], [http://www.ebi.ac.uk/pdbsum/2irt PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2irt RCSB]</span> | ||
}} | }} | ||
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==Overview== | ==Overview== | ||
We report the crystallization of samples of a recombinant preparation of human interleukin-1 receptor antagonist protein (IRAP) and solution of the crystal structure by isomorphous replacement methods. Crystals were obtained by the hanging-drop vapor-diffusion method at 277 K from solutions of PEG 4000 containing sodium chloride, dithiothreitol and PIPES [sodium piperazione-N,N'-bis(2-ethanesulfonate)] buffer at pH 7.0. Crystals appear within about a week and grow as truncated tetragonal bipyramids to 0.3-0.6 mm on an edge. X-ray diffraction data from these crystals specify space group P4(3)2(1)2 and unit-cell dimensions of a = b = 72.35(26), c = 114.7(8) A and Z = 16 (two molecules per asymmetric unit). Fresh crystals diffract to about 2.3 A resolution. The search for heavy-atom derivatives has produced two, potassium gold cyanide and trimethyl lead chloride, as same-site, single-site derivatives. Inspection of an electron-density map at 4 A resolution calculated with these derivatives confirms that the IRAP molecule is a member of the interleukin-1 structural family. | We report the crystallization of samples of a recombinant preparation of human interleukin-1 receptor antagonist protein (IRAP) and solution of the crystal structure by isomorphous replacement methods. Crystals were obtained by the hanging-drop vapor-diffusion method at 277 K from solutions of PEG 4000 containing sodium chloride, dithiothreitol and PIPES [sodium piperazione-N,N'-bis(2-ethanesulfonate)] buffer at pH 7.0. Crystals appear within about a week and grow as truncated tetragonal bipyramids to 0.3-0.6 mm on an edge. X-ray diffraction data from these crystals specify space group P4(3)2(1)2 and unit-cell dimensions of a = b = 72.35(26), c = 114.7(8) A and Z = 16 (two molecules per asymmetric unit). Fresh crystals diffract to about 2.3 A resolution. The search for heavy-atom derivatives has produced two, potassium gold cyanide and trimethyl lead chloride, as same-site, single-site derivatives. Inspection of an electron-density map at 4 A resolution calculated with these derivatives confirms that the IRAP molecule is a member of the interleukin-1 structural family. | ||
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- | ==Disease== | ||
- | Known diseases associated with this structure: Gastric cancer risk after H. pylori infection OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=147679 147679]], Mental retardation, X-linked, 21/34 OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=300206 300206]] | ||
==About this Structure== | ==About this Structure== | ||
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[[Category: signal protein]] | [[Category: signal protein]] | ||
- | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 03:47:41 2008'' |
Revision as of 00:47, 31 March 2008
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, resolution 3.2Å | |||||||
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Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
Coordinates: | save as pdb, mmCIF, xml |
INITIAL CRYSTALLOGRAPHIC ANALYSES OF A RECOMBINANT INTERLEUKIN-1 RECEPTOR ANTAGONIST PROTEIN
Overview
We report the crystallization of samples of a recombinant preparation of human interleukin-1 receptor antagonist protein (IRAP) and solution of the crystal structure by isomorphous replacement methods. Crystals were obtained by the hanging-drop vapor-diffusion method at 277 K from solutions of PEG 4000 containing sodium chloride, dithiothreitol and PIPES [sodium piperazione-N,N'-bis(2-ethanesulfonate)] buffer at pH 7.0. Crystals appear within about a week and grow as truncated tetragonal bipyramids to 0.3-0.6 mm on an edge. X-ray diffraction data from these crystals specify space group P4(3)2(1)2 and unit-cell dimensions of a = b = 72.35(26), c = 114.7(8) A and Z = 16 (two molecules per asymmetric unit). Fresh crystals diffract to about 2.3 A resolution. The search for heavy-atom derivatives has produced two, potassium gold cyanide and trimethyl lead chloride, as same-site, single-site derivatives. Inspection of an electron-density map at 4 A resolution calculated with these derivatives confirms that the IRAP molecule is a member of the interleukin-1 structural family.
About this Structure
2IRT is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Initial crystallographic analysis of a recombinant human interleukin-1 receptor antagonist protein., Clancy LL, Finzel BC, Yem AW, Deibel MR Jr, Strakalaitis NA, Brunner DP, Sweet RM, Einspahr HM, Acta Crystallogr D Biol Crystallogr. 1994 Mar 1;50(Pt 2):197-201. PMID:15299459
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