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Träfflista för sökning "WFRF:(Li J) srt2:(1995-1999)"

Sökning: WFRF:(Li J) > (1995-1999)

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  • Tamás, Markus J., 1970, et al. (författare)
  • Fps1p controls the accumulation and release of the compatible solute glycerol in yeast osmoregulation.
  • 1999
  • Ingår i: Molecular microbiology. - 0950-382X .- 1365-2958. ; 4, s. 1087-104
  • Tidskriftsartikel (refereegranskat)abstract
    • The accumulation of compatible solutes, such as glycerol, in the yeast Saccharomyces cerevisiae, is a ubiquitous mechanism in cellular osmoregulation. Here, we demonstrate that yeast cells control glycerol accumulation in part via a regulated, Fps1p-mediated export of glycerol. Fps1p is a member of the MIP family of channel proteins most closely related to the bacterial glycerol facilitators. The protein is localized in the plasma membrane. The physiological role of Fps1p appears to be glycerol export rather than uptake. Fps1 delta mutants are sensitive to hypo-osmotic shock, demonstrating that osmolyte export is required for recovery from a sudden drop in external osmolarity. In wild-type cells, the glycerol transport rate is decreased by hyperosmotic shock and increased by hypo-osmotic shock on a subminute time scale. This regulation seems to be independent of the known yeast osmosensing HOG and PKC signalling pathways. Mutants lacking the unique hydrophilic N-terminal domain of Fps1p, or certain parts thereof, fail to reduce the glycerol transport rate after a hyperosmotic shock. Yeast cells carrying these constructs constitutively release glycerol and show a dominant hyperosmosensitivity, but compensate for glycerol loss after prolonged incubation by glycerol overproduction. Fps1p may be an example of a more widespread class of regulators of osmoadaptation, which control the cellular content and release of compatible solutes.
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  • Gadea, A, et al. (författare)
  • Magnetic rotation in the Sn-105 nucleus
  • 1997
  • Ingår i: PHYSICAL REVIEW C-NUCLEAR PHYSICS. - : AMER INST PHYSICS. ; 55:1, s. R1-R4
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • The structure of Sn-105 has been investigated through the Cr-50(Ni-58,2pn) reaction at a beam energy of 210 MeV. In addition to an extension of the spherical level scheme a regular sequence of dipole transitions has been found. The states of the dipole ba
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  • Gadea, A, et al. (författare)
  • Shears band in the Sn-105 nucleus
  • 1997
  • Ingår i: ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI. - : SPRINGER VERLAG. ; 358:2, s. 193-194
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • The structure of Sn-105 has been investigated through the Cr-50(Ni-58, 2pn) reaction at a beam energy of 210 MeV. In addition to an extension of the spherical level scheme, a regular sequence of dipole transitions has been found. The experimental results
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