INVESTIGADORES
DELGADO Monica Alejandra
congresos y reuniones científicas
Título:
EXPRESSION AND PURIFICATION OF Salmonella
Autor/es:
PESCARETTI MM,; JUAN V. FARIZANO; MORERO RD,; DELGADO, MONICA ALEJANDRA
Lugar:
Puerto Madryn, Argentina
Reunión:
Congreso; XLVI Reunión Anual de la Sociedad Argentina de Investigación en; 2010
Institución organizadora:
Sociedad Argentina de Investigación en
Resumen:
EXPRESSION AND PURIFICATION OF Salmonella
typhimurium RcsCDB SYSTEM PROTEINS
typhimurium RcsCDB SYSTEM PROTEINS
typhimurium RcsCDB SYSTEM PROTEINS
typhimurium RcsCDB SYSTEM PROTEINS
typhimurium RcsCDB SYSTEM PROTEINS
typhimurium RcsCDB SYSTEM PROTEINS
Salmonella
typhimurium RcsCDB SYSTEM PROTEINSRcsCDB SYSTEM PROTEINS
Pescaretti MM, Farizano JV, Morero RD, Delgado MA
Dpto. Bqca. de la Nutrición-INSIBIO - Inst. Qca. Biológica
(CONICET-UNT) Tucumán. E-mail: monaledel@hotmail.com
The Rcs phosphorelay system involves the sensor protein RcsC,
the cognate response regulator RcsB, and the histidin-containing
phosphotransfer protein RcsD, which serve as an intermediary in
the phosphoryl transfer from RcsC to RcsB. Previously, we
reported that in the double mutant rcsD rcsC, the overproduction of
RcsB regulator can not promote the Rcs system activation. These
results suggested that only RcsB-P, the RcsB active form, is able to
induce the RcsB-dependent genes modulation. We are interested to
determine if RcsC or RcsD can independently transfer the
phosphate group to RcsB, or if in this process is necessary that both
proteins act together. In order to obtain soluble proteins, the full
length rcsB gene and the sequences encoding the cytoplasmic
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
RcsB regulator can not promote the Rcs system activation. These
results suggested that only RcsB-P, the RcsB active form, is able to
induce the RcsB-dependent genes modulation. We are interested to
determine if RcsC or RcsD can independently transfer the
phosphate group to RcsB, or if in this process is necessary that both
proteins act together. In order to obtain soluble proteins, the full
length rcsB gene and the sequences encoding the cytoplasmic
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
RcsB regulator can not promote the Rcs system activation. These
results suggested that only RcsB-P, the RcsB active form, is able to
induce the RcsB-dependent genes modulation. We are interested to
determine if RcsC or RcsD can independently transfer the
phosphate group to RcsB, or if in this process is necessary that both
proteins act together. In order to obtain soluble proteins, the full
length rcsB gene and the sequences encoding the cytoplasmic
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
RcsB regulator can not promote the Rcs system activation. These
results suggested that only RcsB-P, the RcsB active form, is able to
induce the RcsB-dependent genes modulation. We are interested to
determine if RcsC or RcsD can independently transfer the
phosphate group to RcsB, or if in this process is necessary that both
proteins act together. In order to obtain soluble proteins, the full
length rcsB gene and the sequences encoding the cytoplasmic
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
RcsB regulator can not promote the Rcs system activation. These
results suggested that only RcsB-P, the RcsB active form, is able to
induce the RcsB-dependent genes modulation. We are interested to
determine if RcsC or RcsD can independently transfer the
phosphate group to RcsB, or if in this process is necessary that both
proteins act together. In order to obtain soluble proteins, the full
length rcsB gene and the sequences encoding the cytoplasmic
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
RcsB regulator can not promote the Rcs system activation. These
results suggested that only RcsB-P, the RcsB active form, is able to
induce the RcsB-dependent genes modulation. We are interested to
determine if RcsC or RcsD can independently transfer the
phosphate group to RcsB, or if in this process is necessary that both
proteins act together. In order to obtain soluble proteins, the full
length rcsB gene and the sequences encoding the cytoplasmic
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
rcsD rcsC, the overproduction of
RcsB regulator can not promote the Rcs system activation. These
results suggested that only RcsB-P, the RcsB active form, is able to
induce the RcsB-dependent genes modulation. We are interested to
determine if RcsC or RcsD can independently transfer the
phosphate group to RcsB, or if in this process is necessary that both
proteins act together. In order to obtain soluble proteins, the full
length rcsB gene and the sequences encoding the cytoplasmic
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
rcsB gene and the sequences encoding the cytoplasmic
domain of RcsC and RcsD, labeled with a His6 tag, were cloned
into pT7-7 vector. The recombinant plasmids obtained were
sequenced and the RcsB, RcsCcyt and RcsDcyt were expressed in
E. coli BL21 DE3 strain. In the present work we performed the
proteins purification step using Ni2+ affinity chromatography. The
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
proteins purification step using Ni2+ affinity chromatography. The
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
proteins purification step using Ni2+ affinity chromatography. The
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
proteins purification step using Ni2+ affinity chromatography. The
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
proteins purification step using Ni2+ affinity chromatography. The
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
proteins purification step using Ni2+ affinity chromatography. The
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
BL21 DE3 strain. In the present work we performed the
proteins purification step using Ni2+ affinity chromatography. The
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.
2+ affinity chromatography. The
quality and quantity of the purified proteins were monitored by
SDS-PAGE and BSA assay. The soluble proteins will be used an in
vitro phosphorylation assays to determine the phosphorelay
mechanism of the Rcs system.