Identification of a chloroplast-encodedsecAgene homologue in a chromophytic alga: possible role in chloroplast protein translocation

✍ Scribed by Carol D. Scaramuzzi; Roger G. Hiller; Harold W. Stokes

• Book ID: 104735822
• Publisher: Springer-Verlag
• Year: 1992
• Tongue: English
• Weight: 690 KB
• Volume: 22
• Category: Article
• ISSN: 0172-8083
• DOI: 10.1007/bf00352444

✦ Synopsis

SecA is one of seven Sec proteins that comprise the prokaryotic protein translocation apparatus. A chloroplast-encoded secA gene has been identified from the unicellular chromophytic alga Pavlova lutherii. The gene predicts a protein that is related to the SecA proteins of Escherichia coli and Bacillus subtilis. The presence of secA, as well as the previously described sec Y and hsp70 genes, on the chloroplast genome of P. lutherii suggests that this eukaryotic organism utilises protein translocation mechanisms similar to those of bacterial cells.