Isolation of the outer membrane and characterization of the major outer membrane protein from Spirochaeta aurantia

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Isolation of the outer membrane and characterization of the major outer membrane protein from Spirochaeta aurantia.

The outer membrane of Spirochaeta aurantia was isolated after cells were extracted with sodium lauryl sarcosinate and was subsequently purified by differential centrifugation and KBr isopycnic gradient centrifugation. The purified outer membrane was obtained in the form of carotenoid-containing vesicles. Four protein species with apparent molecular weights of 26,000 (26K), 36.5K, 41K, and 48.5K...

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Solubilization of the major outer membrane protein of Rhodopseudomonas sphaeroides, and subsequent isolation, has been achieved by both non-detergent- and detergent-based methods. The protein was differentially solubilized from other outer membrane proteins in 5 M guanidine thiocyanate which was exchanged by dialysis for 7 M urea. The urea-soluble protein was purified to homogeneity by a combin...

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ژورنال

عنوان ژورنال: Journal of Bacteriology

سال: 1987

ISSN: 0021-9193,1098-5530

DOI: 10.1128/jb.169.1.172-179.1987