Nejvíce citovaný článek - PubMed ID 8631732
A deduced Thermomonospora curvata protein containing serine/threonine protein kinase and WD-repeat domains
Southern hybridization with probes designed for detection of WD-repeats coding sequences gave positive results in 21 streptomycete strains indicating that WD-repeats encoding genes are massively spread among streptomycetes. One of them, the wdlA gene of Streptomyces lincolnensis, codes for a 971 amino acid protein with seven WD-repeats in its C-terminus, two transmembrane domains and an ATP/GTP binding site upstream of the WD-repeat region.
- MeSH
- ABC transportéry genetika MeSH
- bakteriální proteiny genetika metabolismus MeSH
- DNA sondy MeSH
- klonování DNA MeSH
- membránové proteiny genetika MeSH
- molekulární sekvence - údaje MeSH
- proteiny vázající GTP genetika MeSH
- repetitivní sekvence aminokyselin genetika fyziologie MeSH
- sekvence aminokyselin MeSH
- sekvenční analýza DNA MeSH
- sekvenční seřazení MeSH
- Southernův blotting MeSH
- Streptomyces genetika růst a vývoj MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- ABC transportéry MeSH
- bakteriální proteiny MeSH
- DNA sondy MeSH
- membránové proteiny MeSH
- proteiny vázající GTP MeSH
- wdlA protein, Streptomyces lincolnensis MeSH Prohlížeč
A 4.2-kb SphI-BamHI fragment of chromosomal DNA from Streptomyces granaticolor was cloned and shown to encode a protein with significant sequence similarity to the eukaryotic protein serine/threonine kinases. It consists of 701 amino acids and in the N-terminal part contains all conserved catalytic domains of protein kinases. The C-terminal domain of Pkg2 contains seven tandem repeats of 11 or 12 amino acids with similarity to the tryptophan-docking motif known to stabilize a symmetrical three-dimensional structure called a propeller structure. The pkg2 gene was overexpressed in Escherichia coli, and the gene product (Pkg2) has been found to be autophosphorylated at serine and threonine residues. The N- and C-terminal parts of Pkg2 are separated with a hydrophobic stretch of 21 amino acids which translocated a PhoA fusion protein into the periplasm. Thus, Pkg2 is the first transmembrane protein serine/threonine kinase described for streptomycetes. Replacement of the pkg2 gene by the spectinomycin resistance gene resulted in changes in the morphology of aerial hyphae.
- MeSH
- bakteriální geny MeSH
- DNA bakterií genetika MeSH
- DNA primery genetika MeSH
- Escherichia coli genetika MeSH
- exprese genu MeSH
- fenotyp MeSH
- fosforylace MeSH
- klonování DNA MeSH
- mikroskopie elektronová rastrovací MeSH
- molekulární sekvence - údaje MeSH
- mutace MeSH
- protein-serin-threoninkinasy chemie genetika metabolismus MeSH
- rekombinantní fúzní proteiny chemie genetika metabolismus MeSH
- restrikční mapování MeSH
- sekvence aminokyselin MeSH
- sekvence nukleotidů MeSH
- sekvenční homologie aminokyselin MeSH
- Streptomyces enzymologie genetika ultrastruktura MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- DNA bakterií MeSH
- DNA primery MeSH
- protein-serin-threoninkinasy MeSH
- rekombinantní fúzní proteiny MeSH
Using the examples of biosynthesis of streptomycin, bialaphos, actinorhodin, oligoketides and autoregulators during the first hours of streptomycete cultivation, it is stressed that the external environment in cooperation with the internal metabolic abilities of the cell determines the metabolic type that would develop during the life cycle of the producing streptomycetes. If we accept that a certain metabolic type (from the point of view of the production of secondary metabolites) was determined already during the first hours of cultivation of the microorganisms, we must also admit that the availability of primary metabolites in the so-called production phase of growth (stationary phase, idiophase, etc.) is to a certain extent determined by the very early stages of strain development.
- MeSH
- anthrachinony metabolismus MeSH
- antibakteriální látky biosyntéza MeSH
- časové faktory MeSH
- organofosforové sloučeniny metabolismus MeSH
- regulace genové exprese u bakterií MeSH
- Streptomyces fyziologie MeSH
- streptomycin biosyntéza MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- přehledy MeSH
- Názvy látek
- actinorhodin MeSH Prohlížeč
- anthrachinony MeSH
- antibakteriální látky MeSH
- bialaphos MeSH Prohlížeč
- organofosforové sloučeniny MeSH
- streptomycin MeSH