Thomas P Jahn

Summary

Affiliation: The Royal Veterinary and Agricultural University
Country: Denmark

Publications

  1. ncbi Aquaporin homologues in plants and mammals transport ammonia
    Thomas P Jahn
    Plant Nutrition Laboratory, Department of Agricultural Sciences, The Royal Veterinary and Agricultural University, Thorvaldsensvej 40, DK 1871 Frederiksberg C, Denmark
    FEBS Lett 574:31-6. 2004
  2. doi Transmembrane nine proteins in yeast and Arabidopsis affect cellular metal contents without changing vacuolar morphology
    Josefine N Hegelund
    Plant and Soil Science, Department of Agriculture and Ecology, Faculty of Life Sciences, University of Copenhagen, Thorvaldsensvej 40, DK 1871 Frederiksberg C, Denmark
    Physiol Plant 140:355-67. 2010
  3. ncbi Specific aquaporins facilitate the diffusion of hydrogen peroxide across membranes
    Gerd P Bienert
    Department of Agricultural Sciences, Faculty of Life Science, Copenhagen University, DK 1871 Frederiksberg C, Denmark
    J Biol Chem 282:1183-92. 2007
  4. pmc Competition between uptake of ammonium and potassium in barley and Arabidopsis roots: molecular mechanisms and physiological consequences
    Floor Ten Hoopen
    Department of Agriculture and Ecology, Plant and Soil Science Laboratory, Faculty of Life Sciences, University of Copenhagen, Thorvaldsensvej 40, DK 1871 Frederiksberg C, Denmark
    J Exp Bot 61:2303-15. 2010
  5. pmc A subgroup of plant aquaporins facilitate the bi-directional diffusion of As(OH)3 and Sb(OH)3 across membranes
    Gerd P Bienert
    Department of Agricultural Sciences, Faculty of Life Sciences, University of Copenhagen, Frederiksberg C, Denmark
    BMC Biol 6:26. 2008
  6. pmc Manganese efficiency in barley: identification and characterization of the metal ion transporter HvIRT1
    Pai Pedas
    Plant and Soil Science Laboratory, Department of Agriculture and Ecology, Faculty of Life Sciences, University of Copenhagen, DK 1871 Frederiksberg C, Copenhagen, Denmark
    Plant Physiol 148:455-66. 2008
  7. doi Cloning, characterization and expression analysis of tonoplast intrinsic proteins and glutamine synthetase in ryegrass (Lolium perenne L.)
    Pia H Nord-Larsen
    Plant and Soil Science Laboratory, Department of Agriculture and Ecology, Faculty of Life Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg, Denmark
    Plant Cell Rep 28:1549-62. 2009
  8. ncbi The binding site for regulatory 14-3-3 protein in plant plasma membrane H+-ATPase: involvement of a region promoting phosphorylation-independent interaction in addition to the phosphorylation-dependent C-terminal end
    Anja T Fuglsang
    Department of Plant Biology, Plant Physiology and Anatomy Laboratory, Royal Veterinary and Agricultural University, Thorvaldsensvej 40, DK 1871 Frederiksberg C, Denmark
    J Biol Chem 278:42266-72. 2003
  9. ncbi Membrane transport of hydrogen peroxide
    Gerd P Bienert
    Plant and Soil Sciences Laboratory, Department of Agricultural Sciences, The Royal Veterinary and Agricultural University, Thorvaldsensvej 40, DK 1871 Frederiksberg C, Denmark
    Biochim Biophys Acta 1758:994-1003. 2006
  10. ncbi Metalloids: essential, beneficial or toxic? Major intrinsic proteins sort it out
    Gerd P Bienert
    Department of Agricultural Sciences, Faculty of Life Sciences, University of Copenhagen, Thorvaldsensvej 40, DK 1871 Frederiksberg C, Denmark
    Trends Biochem Sci 33:20-6. 2008

Collaborators

Detail Information

Publications13

  1. ncbi Aquaporin homologues in plants and mammals transport ammonia
    Thomas P Jahn
    Plant Nutrition Laboratory, Department of Agricultural Sciences, The Royal Veterinary and Agricultural University, Thorvaldsensvej 40, DK 1871 Frederiksberg C, Denmark
    FEBS Lett 574:31-6. 2004
    ..Mammalian AQP8 sharing the aquaammoniaporin signature also complemented NH4+ transport deficiency in yeast...
  2. doi Transmembrane nine proteins in yeast and Arabidopsis affect cellular metal contents without changing vacuolar morphology
    Josefine N Hegelund
    Plant and Soil Science, Department of Agriculture and Ecology, Faculty of Life Sciences, University of Copenhagen, Thorvaldsensvej 40, DK 1871 Frederiksberg C, Denmark
    Physiol Plant 140:355-67. 2010
    ..Tmn1p and Tmn2p operate from the yeast vacuolar membrane without influencing vacuolar biogenesis. A new physiological function of the TM9 family coupled to vacuolar Cu homeostasis is proposed...
  3. ncbi Specific aquaporins facilitate the diffusion of hydrogen peroxide across membranes
    Gerd P Bienert
    Department of Agricultural Sciences, Faculty of Life Science, Copenhagen University, DK 1871 Frederiksberg C, Denmark
    J Biol Chem 282:1183-92. 2007
    ..Our results present the first molecular genetic evidence for the diffusion of H2O2 through specific members of the aquaporin family...
  4. pmc Competition between uptake of ammonium and potassium in barley and Arabidopsis roots: molecular mechanisms and physiological consequences
    Floor Ten Hoopen
    Department of Agriculture and Ecology, Plant and Soil Science Laboratory, Faculty of Life Sciences, University of Copenhagen, Thorvaldsensvej 40, DK 1871 Frederiksberg C, Denmark
    J Exp Bot 61:2303-15. 2010
    ..Unregulated NH4+ uptake via these transporters may contribute to NH4+ toxicity at low K+ levels, and may explain the alleviation of NH4+ toxicity by K+...
  5. pmc A subgroup of plant aquaporins facilitate the bi-directional diffusion of As(OH)3 and Sb(OH)3 across membranes
    Gerd P Bienert
    Department of Agricultural Sciences, Faculty of Life Sciences, University of Copenhagen, Frederiksberg C, Denmark
    BMC Biol 6:26. 2008
    ..Although much is known about As(III) transport and handling in microbes and mammals, the transport systems for As(III) have not yet been characterized in plants...
  6. pmc Manganese efficiency in barley: identification and characterization of the metal ion transporter HvIRT1
    Pai Pedas
    Plant and Soil Science Laboratory, Department of Agriculture and Ecology, Faculty of Life Sciences, University of Copenhagen, DK 1871 Frederiksberg C, Copenhagen, Denmark
    Plant Physiol 148:455-66. 2008
    ..We conclude that HvIRT1 is an important component controlling Mn(2+) uptake in barley roots and contributes to genotypic differences in Mn(2+) uptake kinetics...
  7. doi Cloning, characterization and expression analysis of tonoplast intrinsic proteins and glutamine synthetase in ryegrass (Lolium perenne L.)
    Pia H Nord-Larsen
    Plant and Soil Science Laboratory, Department of Agriculture and Ecology, Faculty of Life Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg, Denmark
    Plant Cell Rep 28:1549-62. 2009
    ..Similarly, the expression of LpTIPs complied with a role in vacuolar ammonium storage. Together, the reported results provide new understanding of the genetic basis for N assimilation and storage in ryegrass...
  8. ncbi The binding site for regulatory 14-3-3 protein in plant plasma membrane H+-ATPase: involvement of a region promoting phosphorylation-independent interaction in addition to the phosphorylation-dependent C-terminal end
    Anja T Fuglsang
    Department of Plant Biology, Plant Physiology and Anatomy Laboratory, Royal Veterinary and Agricultural University, Thorvaldsensvej 40, DK 1871 Frederiksberg C, Denmark
    J Biol Chem 278:42266-72. 2003
    ..We suggest that the role of phosphorylation, which is accentuated by fusicoccin, is to stabilize protein-protein interaction between 14-3-3 protein and several residues of the H+-ATPase C-terminal domain...
  9. ncbi Membrane transport of hydrogen peroxide
    Gerd P Bienert
    Plant and Soil Sciences Laboratory, Department of Agricultural Sciences, The Royal Veterinary and Agricultural University, Thorvaldsensvej 40, DK 1871 Frederiksberg C, Denmark
    Biochim Biophys Acta 1758:994-1003. 2006
    ..The main focus of this review is (i) to summarize the most recent evidence for a signalling role of H2O2 in various pathways in plants and mammals and (ii) to discuss the relevance of specific transport of H2O2...
  10. ncbi Metalloids: essential, beneficial or toxic? Major intrinsic proteins sort it out
    Gerd P Bienert
    Department of Agricultural Sciences, Faculty of Life Sciences, University of Copenhagen, Thorvaldsensvej 40, DK 1871 Frederiksberg C, Denmark
    Trends Biochem Sci 33:20-6. 2008
    ..We propose that specific MIPs represent an ancient and indispensable transport mechanism for metalloids, which suggests that they could be potential pharmacological targets...
  11. ncbi Post-translational modification of plant plasma membrane H(+)-ATPase as a requirement for functional complementation of a yeast transport mutant
    Thomas P Jahn
    Department of Plant Biology, The Royal Veterinary and Agricultural University, Thorvaldsensvej 40, DK 1871 Frederiksberg C, Denmark
    J Biol Chem 277:6353-8. 2002
    ..This demonstrates that it is the activity status of the mutant enzyme and neither redirection of trafficking nor 14-3-3 binding per se that determines the ability of H(+)-pumps to rescue pma1...
  12. doi Gene expression, cellular localisation and function of glutamine synthetase isozymes in wheat (Triticum aestivum L.)
    Stéphanie M Bernard
    Plant Science Department, Centre for Crop Genetic Improvement, Rothamsted Research, Harpenden, Hertfordshire, UK
    Plant Mol Biol 67:89-105. 2008
    ..Use of this genetic variation should inform future efforts to modulate this enzyme for pre-breeding efforts to improve nitrogen use in wheat...
  13. ncbi NH3 and NH4+ permeability in aquaporin-expressing Xenopus oocytes
    Lars M Holm
    Nordic Centre for Water Imbalance Related Disorders Department of Medical Physiology, Panum Institute, University of Copenhagen, 2200N, Denmark
    Pflugers Arch 450:415-28. 2005
    ..We conclude that AQP8, AQP9, AQP3, and TIP2;1, apart from being water channels, also support significant fluxes of NH3. These aquaporins could support NH4+ transport and have physiological implications for liver and kidney function...