Characterization of the regulatory subunit of Yarrowia lipolytica cAMP - dependent protein kinase evidences of a monomeric protein
cAMP-dependent protein kinase [PKA] catalytic [C] and regulatory [R] subunits from Yarrowia lipolytica are encoded by single genes, TPK1 and RKA1, respectively. Here we performed the heterologous expression, purification and characterization of the R subunit from Y. lipolytica yeast cells, and explo...
Otros Autores: | , , , |
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Formato: | Artículo |
Lenguaje: | Inglés |
Materias: | |
Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2011Kronberg.pdf LINK AL EDITOR |
Aporte de: | Registro referencial: Solicitar el recurso aquí |
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245 | 1 | 0 | |a Characterization of the regulatory subunit of Yarrowia lipolytica cAMP - dependent protein kinase |b evidences of a monomeric protein |
520 | |a cAMP-dependent protein kinase [PKA] catalytic [C] and regulatory [R] subunits from Yarrowia lipolytica are encoded by single genes, TPK1 and RKA1, respectively. Here we performed the heterologous expression, purification and characterization of the R subunit from Y. lipolytica yeast cells, and explored the main biochemical features of the PKA. The purified recombinant R, active and capable to interact with C subunit was used to prepare highly specific polyclonal antiserum. Sucrose-gradient centrifugation and gel filtration analysis of both recombinant and native R revealed the monomeric nature of this subunit. Hydrodynamic parameters of the holoenzyme indicated that Y. lipolytica PKA is a dimer of 90 kDa composed of an R subunit of 42 kDa and a C subunit of 39 kDa. The identification of the N-terminal sequence was carried out by mass spectrometry analysis of the purified native R subunit. The differences between N-terminal sequences of R subunits from Y. lipolytica and other organisms, particularly a short linker that spans the inhibitory site, were discussed as the possible cause of the lack of dimerization. R was identified as a type II subunit since our results indicated that it was phosphorylated in vivo by C at S124 identified by anti-phospho-PKA substrate [RRXS/T] antibody. | ||
653 | 0 | |a AUTOPHOSPHORYLATION | |
653 | 0 | |a PKA | |
653 | 0 | |a REGULATORY SUBUNIT | |
653 | 0 | |a YARROWIA LIPOLYTICA | |
653 | 0 | |a CYCLIC AMP DEPENDENT PROTEIN KINASE | |
653 | 0 | |a HOLOENZYME | |
653 | 0 | |a MONOMER | |
653 | 0 | |a AMINO TERMINAL SEQUENCE | |
653 | 0 | |a CENTRIFUGATION | |
653 | 0 | |a CONTROLLED STUDY | |
653 | 0 | |a DIMERIZATION | |
653 | 0 | |a GEL FILTRATION | |
653 | 0 | |a HYDRODYNAMICS | |
653 | 0 | |a IN VIVO STUDY | |
653 | 0 | |a MASS SPECTROMETRY | |
653 | 0 | |a NONHUMAN | |
653 | 0 | |a PROTEIN ANALYSIS | |
653 | 0 | |a PROTEIN EXPRESSION | |
653 | 0 | |a PROTEIN INTERACTION | |
653 | 0 | |a PROTEIN PHOSPHORYLATION | |
653 | 0 | |a PROTEIN PURIFICATION | |
653 | 0 | |a YARROWIA LIPOLYTICA | |
653 | 0 | |a AMINO ACID SEQUENCE | |
653 | 0 | |a CLONING, MOLECULAR | |
653 | 0 | |a CYCLIC AMP-DEPENDENT PROTEIN KINASES | |
653 | 0 | |a GENE EXPRESSION | |
653 | 0 | |a HOLOENZYMES | |
653 | 0 | |a MOLECULAR SEQUENCE DATA | |
653 | 0 | |a PHOSPHORYLATION | |
653 | 0 | |a PROTEIN MULTIMERIZATION | |
653 | 0 | |a PROTEIN SUBUNITS | |
653 | 0 | |a RECOMBINANT PROTEINS | |
653 | 0 | |a YARROWIA | |
700 | 1 | |9 66853 |a Kronberg, María Florencia | |
700 | 1 | |9 68244 |a Giacometti, Romina | |
700 | 1 | |a Ruiz Herrera, José |9 72006 | |
700 | 1 | |9 48345 |a Passeron, Susana | |
773 | |t Archives of Biochemistry and Biophysics |g Vol.509, no.1 (2011), p.66-75 | ||
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900 | |a ^tCharacterization of the regulatory subunit of Yarrowia lipolytica cAMP-dependent protein kinase. Evidences of a monomeric protein | ||
900 | |a ^aKronberg^bF. | ||
900 | |a ^aGiacometti^bR. | ||
900 | |a ^aRuiz-Herrera^bJ. | ||
900 | |a ^aPasseron^bS. | ||
900 | |a ^aKronberg^bF. | ||
900 | |a ^aGiacometti^bR. | ||
900 | |a ^aRuiz Herrera^bJ. | ||
900 | |a ^aPasseron^bS. | ||
900 | |a ^aKronberg^bF.^tCátedra de MicrobiologÃa, Facultad de AgronomÃa, Universidad de Buenos Aires, INBA-CONICET, Avda. San Martin 4453, C1417DSE Buenos Aires, Argentina | ||
900 | |a ^aGiacometti^bR.^tDepartamento de IngenierÃa Genética, Unidad Irapuato, Centro de Investigación y de Estudios Avanzados Del IPN, Irapuato, Gto., Mexico | ||
900 | |a ^aRuiz-Herrera^bJ. | ||
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900 | |a ^tArchives of Biochemistry and Biophysics^cArch. Biochem. Biophys. | ||
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900 | |a Vol. 509, no. 1 | ||
900 | |a 75 | ||
900 | |a AUTOPHOSPHORYLATION | ||
900 | |a PKA | ||
900 | |a REGULATORY SUBUNIT | ||
900 | |a YARROWIA LIPOLYTICA | ||
900 | |a CYCLIC AMP DEPENDENT PROTEIN KINASE | ||
900 | |a HOLOENZYME | ||
900 | |a MONOMER | ||
900 | |a AMINO TERMINAL SEQUENCE | ||
900 | |a CENTRIFUGATION | ||
900 | |a CONTROLLED STUDY | ||
900 | |a DIMERIZATION | ||
900 | |a GEL FILTRATION | ||
900 | |a HYDRODYNAMICS | ||
900 | |a IN VIVO STUDY | ||
900 | |a MASS SPECTROMETRY | ||
900 | |a NONHUMAN | ||
900 | |a PROTEIN ANALYSIS | ||
900 | |a PROTEIN EXPRESSION | ||
900 | |a PROTEIN INTERACTION | ||
900 | |a PROTEIN PHOSPHORYLATION | ||
900 | |a PROTEIN PURIFICATION | ||
900 | |a YARROWIA LIPOLYTICA | ||
900 | |a AMINO ACID SEQUENCE | ||
900 | |a CLONING, MOLECULAR | ||
900 | |a CYCLIC AMP-DEPENDENT PROTEIN KINASES | ||
900 | |a GENE EXPRESSION | ||
900 | |a HOLOENZYMES | ||
900 | |a MOLECULAR SEQUENCE DATA | ||
900 | |a PHOSPHORYLATION | ||
900 | |a PROTEIN MULTIMERIZATION | ||
900 | |a PROTEIN SUBUNITS | ||
900 | |a RECOMBINANT PROTEINS | ||
900 | |a YARROWIA | ||
900 | |a cAMP-dependent protein kinase [PKA] catalytic [C] and regulatory [R] subunits from Yarrowia lipolytica are encoded by single genes, TPK1 and RKA1, respectively. Here we performed the heterologous expression, purification and characterization of the R subunit from Y. lipolytica yeast cells, and explored the main biochemical features of the PKA. The purified recombinant R, active and capable to interact with C subunit was used to prepare highly specific polyclonal antiserum. Sucrose-gradient centrifugation and gel filtration analysis of both recombinant and native R revealed the monomeric nature of this subunit. Hydrodynamic parameters of the holoenzyme indicated that Y. lipolytica PKA is a dimer of 90 kDa composed of an R subunit of 42 kDa and a C subunit of 39 kDa. The identification of the N-terminal sequence was carried out by mass spectrometry analysis of the purified native R subunit. The differences between N-terminal sequences of R subunits from Y. lipolytica and other organisms, particularly a short linker that spans the inhibitory site, were discussed as the possible cause of the lack of dimerization. R was identified as a type II subunit since our results indicated that it was phosphorylated in vivo by C at S124 identified by anti-phospho-PKA substrate [RRXS/T] antibody. | ||
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