Crystallization and preliminary X-ray analysis of the bacterial ATP-binding-cassette (ABC) protein MalK
Autor(en): | Schmees, G zu Bentrup, KH Schneider, E Vinzenz, D Ermler, U |
Stichwörter: | Biochemical Research Methods; Biochemistry & Molecular Biology; Biophysics; Crystallography; CYSTIC-FIBROSIS; MALTOSE TRANSPORT; MECHANISM; MULTIDRUG-RESISTANCE; PERIPLASMIC PERMEASES; PURIFICATION; RESOLUTION; SALMONELLA-TYPHIMURIUM; STRUCTURAL MODEL; SUBUNIT | Erscheinungsdatum: | 1999 | Herausgeber: | INT UNION CRYSTALLOGRAPHY | Journal: | ACTA CRYSTALLOGRAPHICA SECTION D-STRUCTURAL BIOLOGY | Volumen: | 55 | Ausgabe: | 1 | Startseite: | 285 | Seitenende: | 286 | Zusammenfassung: | The ATP-binding protein, MalK, of the bacterial ABC (ATP-binding cassette) transport complex MalFGK(2) provides the energy for the translocation of maltose and maltodextrins across the cytoplasmic . The MalK protein from Salmonella typhimurium was overexpressed in Escherichia coli and crystallized by the hanging-drop method using (NH4)(2)SO4 as a precipitant. The crystals belong to space group P6(x)22 (most probably x = 1 or 5) with cell dimensions a = 181.8 and c = 182.5 Angstrom, corresponding to three or four molecules per asymmetric unit. They diffract to a resolution of about 3 Angstrom on a synchrotron X-ray source and are suitable for structure determination. |
ISSN: | 20597983 | DOI: | 10.1107/S0907444998008518 |
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