Identification of secreted proteins of the cyanobacterium Synechocystis sp. strain PCC 6803.
We investigated the spectrum of secreted proteins in the cyanobacterium Synechocystis, and identified these proteins by amino-terminal sequencing. In total, seven sequences have been determined that corresponded to the proteins Sll0044, Sll1694, Sll1891, Slr0924, Slr0841, Slr0168, and Slr1855. The protein Sll1694 of 18 kDa that formed one of two major bands on SDS-PAGE was identified as cyanobacterial pilin, PilA. The amino-terminal sequence of another protein that formed a second major band was blocked. The analysis of the data revealed that five of seven proteins had distinct putative leader sequences for secretion.
Sergeyenko
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Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya street 35, 127276, Moscow, Russia.
Los
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D000595:Amino Acid Sequence; D001426:Bacterial Proteins / Q000737:chemistry* / Q000235:genetics / Q000378:metabolism*; D003470:Culture Media / Q000737:chemistry; D000458:Cyanobacteria / Q000254:growth & development / Q000378:metabolism*; D004591:Electrophoresis, Polyacrylamide Gel; D008969:Molecular Sequence Data; D021382:Protein Sorting Signals
D001426:Bacterial Proteins; D003470:Culture Media; D021382:Protein Sorting Signals