Initial crystallographic analysis of a recombinant human interleukin-1 receptor antagonist protein.Clancy, L.L., Finzel, B.C., Yem, A.W., Deibel, M.R., Strakalaitis, N.A., Brunner, D.P., Sweet, R.M., Einspahr, H.M.
(1994) Acta Crystallogr.,Sect.D 50: 197-201
- PubMed: 15299459
- DOI: 10.1107/S0907444993009394
- PubMed Abstract:
- Purification, Cloning, Expression and Biological Characterization of an Interleukin-1 Receptor Antagonist Protein
Carter, D.B.,Deibel Junior, M.R.,Dunn, C.J.,Tomich, C.-S.,Laborde, A.L.,Slightom, J.L.,Berger, A.E.,Bienkowski, M.J.,Sun, F.F.,Mcewan, R.N.,Harris, P.K.W.,Yem, A.W.,Waszak, G.A.,Chosay, J.G.,Sieu, L.C.,Hardee, M.M.,Zurcher-Neely, H.A.,Reardon, I.M.,Heinrikson, R.L.,Truesdell, S.E.,Shelly, J.A.,Eessalu, T.T.,Taylor, B.M.,Tracey, D.E.
(1990) Nature 344: 633
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 ...
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.
The Upjohn Company, Kalamazoo, Michigan 49001, USA.