PMID:7589423
| Citation |
Blaauw, M, Dekker, N, Verheij, HM, Kalk, KH and Dijkstra, BW (1995) Crystallization and preliminary X-ray analysis of outer membrane phospholipase A from Escherichia coli. FEBS Lett. 373:10-2 |
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| Abstract |
The outer membrane phospholipase A (OMPLA) of Escherichia coli is one of the few integral outer membrane proteins displaying enzymatic activity. It is encoded as a mature protein of 269 amino acids preceded by a signal sequence of 20 amino acids. There is no sequence homology with water-soluble lipases and phospholipases. Crystals of the mature enzyme were obtained at 22 degrees C from 24-28% (v/v) 2-methyl-2,4-pentanediol in Bis-Tris buffer, pH 5.9-6.0, with 1 mM calcium chloride and 1.5% (w/v) beta-octylglucoside. They have the symmetry of the trigonal spacegroup P3(1)21 (or P3(2)21) with cell dimensions of a = b = 79.6 A and c = 102.8 A (alpha = beta = 90 degrees, gamma = 120 degrees). Native crystals diffract to a resolution of 2.6 A. |
| Links | |
| Keywords |
Amino Acid Sequence; Cell Membrane/enzymology; Cloning, Molecular; Crystallization; Crystallography, X-Ray/methods; Escherichia coli/enzymology; Indicators and Reagents; Molecular Sequence Data; Phospholipases A/biosynthesis; Phospholipases A/chemistry; Phospholipases A/isolation & purification; Recombinant Proteins/biosynthesis; Recombinant Proteins/chemistry; Recombinant Proteins/isolation & purification |
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