Secretion of Serratia liquefaciens phospholipase from Escherichia coli
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Secretion of Serratia liquefaciens phospholipase from Escherichia coli. / Givskov, M; Molin, Søren.
In: Molecular Microbiology, Vol. 8, No. 2, 1993, p. 229-42.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Secretion of Serratia liquefaciens phospholipase from Escherichia coli
AU - Givskov, M
AU - Molin, Søren
PY - 1993
Y1 - 1993
N2 - The Serratia liquefaciens phospholipase (PhlA) is secreted to the medium from its natural host. Here we present results which indicate that, when cloned and expressed in Escherichia coli, secretion can be mediated by a putative host-encoded pathway, expression of which is controlled by FlhD (formerly FlbB), the master regulator of the flagellar/chemotaxis regulon. In the absence of this secretion pathway, the synthesized phospholipase accumulates inside the host cell where it forms a complex with the PhlB protein. PhlB, which is encoded from the promoter distal gene of the phospholipase operon, inhibits the phospholipase activity of PhlA. Formation of this enzymatically inactive PhlA/PhlB complex is required for maintenance of cell viability.
AB - The Serratia liquefaciens phospholipase (PhlA) is secreted to the medium from its natural host. Here we present results which indicate that, when cloned and expressed in Escherichia coli, secretion can be mediated by a putative host-encoded pathway, expression of which is controlled by FlhD (formerly FlbB), the master regulator of the flagellar/chemotaxis regulon. In the absence of this secretion pathway, the synthesized phospholipase accumulates inside the host cell where it forms a complex with the PhlB protein. PhlB, which is encoded from the promoter distal gene of the phospholipase operon, inhibits the phospholipase activity of PhlA. Formation of this enzymatically inactive PhlA/PhlB complex is required for maintenance of cell viability.
M3 - Journal article
C2 - 8316077
VL - 8
SP - 229
EP - 242
JO - Molecular Microbiology
JF - Molecular Microbiology
SN - 0950-382X
IS - 2
ER -
ID: 44293771