Two-dimensional crystals of the Kdp-ATPase of Escherichia coli
Autor(en): | Iwane, AH Ikeda, I Kimura, Y Fujiyoshi, Y Altendorf, K Epstein, W |
Stichwörter: | Biochemistry & Molecular Biology; Biophysics; Cell Biology; COMPLEX; crystallization; electron crystallography; Kdp-ATPase; membrane protein; MICROSCOPY; MODEL; P-type ATPase; projection map; PROTEINS; PURPLE MEMBRANE; RESOLUTION; structure; TRANSPORT ATPASE; two-dimensional crystal | Erscheinungsdatum: | 1996 | Herausgeber: | ELSEVIER SCIENCE BV | Journal: | FEBS LETTERS | Volumen: | 396 | Ausgabe: | 2-3 | Startseite: | 172 | Seitenende: | 176 | Zusammenfassung: | A variant form of the Kdp-ATPase of Escherichia coli mas overproduced to a level approaching 37% of the protein in the inner membrane of this organism. Membranes from overproducing cells were prepared with an inside-out orientation. Incubation of the membranes on ice for 1-2 weeks in the presence of sodium vanadate resulted in the formation of two-dimensional crystals of the Kdp-ATPase. The calculated projection map of the p1 crystal form showed three prominent density peaks at a resolution of 22 Angstrom. This technique is a useful and simple method to obtain low-resolution structures of membrane proteins. |
ISSN: | 00145793 | DOI: | 10.1016/0014-5793(96)01096-4 |
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geprüft am 20.05.2024