Swimming motility mutants of marine Synechococcus affected in production and localization of the S-layer protein SwmA.
نویسندگان
چکیده
The S-layer protein SwmA is required for nonflagellar swimming in marine Synechococcus. An analysis of mutations in seven genes at two loci in the Synechococcus sp. strain WH8102 genome indicates that a multicomponent transporter and glycosyltransferases are required for the production and proper localization of SwmA.
منابع مشابه
SwmB, a 1.12-megadalton protein that is required for nonflagellar swimming motility in Synechococcus.
SwmB is required for swimming motility in Synechococcus sp. strain WH8102. This highly repetitive 1.12-MDa polypeptide is associated with the cell surface, where it is arranged in a punctate manner. Inactivation of swmB does not affect the localization of SwmA, an S-layer protein also required for swimming.
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The mechanism of nonflagellar swimming of marine unicellular cyanobacteria remains poorly understood. SwmA is an abundant cell surface-associated 130-kDa glycoprotein that is required for the generation of thrust in Synechococcus sp. strain WH8102. Ultrastructural comparisons of wild-type cells to a mutant strain in which the gene encoding SwmA has been insertionally inactivated reveal that the...
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ورودعنوان ژورنال:
- Journal of bacteriology
دوره 191 3 شماره
صفحات -
تاریخ انتشار 2009