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Secretion of alpha-amylase from Pseudoalteromonas haloplanktis TAB23: two different pathways in different hosts
Maria Luisa Tutino1, Ermenegilda Parrilli, Laura Giaquinto
1Dipartimento di Chimica Organica e Biochimica, Università di Napoli Federico II--Complesso Universitario Monte Sant'Angelo, Naples, Italy. tutino@unina.it
Journal of Bacteriology
|September 25, 2002
Abstract:
Secretion of cold-adapted alpha-amylase from Pseudoalteromonas haloplanktis TAB23 was studied in three Antarctic bacteria. We demonstrated that the enzyme is specifically secreted in the psychrophilic hosts even in the absence of a protein domain that has been previously reported to be necessary for alpha-amylase secretion in Escherichia coli. The occurrence of two different secretion pathways in different hosts is proposed.