title: Conditions affecting production of functional muscle recombinant alpha-tropomyosin in Saccharomyces cerevisiae.
abstract: Yeasts are attractive hosts for heterologous protein production as they follow the general eukaryotic post-translational modification pattern. The well-known Saccharomyces cerevisiae has been used to produce a large variety of foreign proteins. The proper function of muscle tropomyosin depends on a specific modification at its N-terminus. Although tropomyosin has been produced in different expression systems, only the recombinant protein produced in the yeast Pichia pastoris has native-like functional properties. In this paper we describe the production of functional skeletal muscle tropomyosin in the yeast S. cerevisiae. The recombinant protein was produced in high amounts and production was strongly affected by genetic and environmental factors, including plasmid copy number, promoter strength, and growth media composition.
authors.affiliation: Departamento de Bioquímica e Tecnologia Química, Instituto de Química, UNESP, 14800-900, Araraquara, SP, Brazil.
authors.forename: Marcos Castanheira
authors.initials: MC
authors.lastname: Alegria
authors.forename: Susana Cristina Sperandei
authors.initials: SC
authors.lastname: Lavarda
authors.forename: Renata Cristina
authors.initials: RC
authors.lastname: Lataro
authors.forename: Eduardo
authors.initials: E
authors.lastname: Hilario
authors.forename: Jesus Aparecido
authors.initials: JA
authors.lastname: Ferro
authors.forename: Maria Célia
authors.initials: MC
authors.lastname: Bertolini
mesh_terms: D000199:Actins / Q000378:metabolism; D000205:Actomyosin / Q000378:metabolism; D017301:Ca(2+) Mg(2+)-ATPase / Q000037:antagonists & inhibitors / Q000378:metabolism; D002118:Calcium / Q000378:metabolism; D003470:Culture Media / Q000737:chemistry / Q000494:pharmacology*; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli / Q000235:genetics; D015870:Gene Expression / Q000187:drug effects; D009132:Muscles / Q000378:metabolism; D009994:Osmolar Concentration; D016133:Polymerase Chain Reaction; D011994:Recombinant Proteins / Q000096:biosynthesis* / Q000235:genetics / Q000302:isolation & purification / Q000494:pharmacology; D012441:Saccharomyces cerevisiae / Q000235:genetics; D014335:Tropomyosin / Q000096:biosynthesis* / Q000235:genetics / Q000302:isolation & purification / Q000494:pharmacology; D014336:Troponin / Q000494:pharmacology; D014783:Viscosity
chemical_list: D000199:Actins; D003470:Culture Media; D011994:Recombinant Proteins; D014335:Tropomyosin; D014336:Troponin; D000205:Actomyosin; D017301:Ca(2+) Mg(2+)-ATPase; D002118:Calcium