Results 91 to 100 of about 12,819 (218)

Misregulation of tetrapyrrole biosynthesis in transgenic tobacco seedlings expressing mammalian biliverdin reductase [PDF]

, 2003
Previous studies have established that the expression of mammalian biliverdin IXalpha reductase (BVR) in transgenic tobacco (Nicotiana tabacum cv. Maryland Mammoth) resulted in the loss of photoregulatory activity of all phytochromes together with a ...
Montgomery, BL, Franklin, K.A., Thomas, B, Linley, PJ, Jackson, SD, Lagarias, J.C., Lagarias, JC, Lagarias, J. Clark, Linley, Philip J., Terry, MJ, Franklin, Keara A., Terry, M.J., Montgomery, Beronda L., Jackson, S.D., Montgomery, B.L., Terry, Matthew J., Linley, P.J., Thomas, B., Franklin, KA, Jackson, Stephen D., Thomas, Brian   +20 more
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A Hydrogen Bond Between Linear Tetrapyrrole and Conserved Aspartate Causes the Far-Red Shifted Absorption of Phytochrome Photoreceptors [PDF]

, 2020
Photoswitching of phytochrome photoreceptors between red-absorbing (Pr) and far-red absorbing (Pfr) states triggers light adaptation of plants, bacteria and other organisms. Using quantum chemistry, we elucidate the color-tuning mechanism of phytochromes
Tatiana, Domratcheva, Egle, Maximowitsch
core   +1 more source

The Arabidopsis translocator protein (AtTSPO) is regulated at multiple levels in response to salt stress and perturbations in tetrapyrrole metabolism

BMC Plant Biology, 2011
Background The translocator protein 18 kDa (TSPO), previously known as the peripheral-type benzodiazepine receptor (PBR), is important for many cellular functions in mammals and bacteria, such as steroid biosynthesis, cellular respiration, cell ...
Umen James G, Andrade Leonardo R, Olson Bradley JSC, Jaillais Yvon, Balsemão-Pires Emilia, Chory Joanne, Sachetto-Martins Gilberto   +6 more
doaj   +1 more source

Pharmacological chaperone reshapes the energy landscape for folding and aggregation of the prion protein

Nature Communications, 2016
Small-molecule chaperones that can prevent protein misfolding have potential applications for treating diseases such as Alzheimer’s and ALS. Here the authors use high-resolution force spectroscopy to gain insight into the mechanism of action of an iron ...
Amar Nath Gupta, Krishna Neupane, Negar Rezajooei, Leonardo M. Cortez, Valerie L. Sim, Michael T. Woodside   +5 more
doaj   +1 more source

Transcriptional regulation of tetrapyrrole biosynthesis in Arabidopsis thaliana

Frontiers in Plant Science, 2016
Biosynthesis of chlorophyll (Chl) involves many enzymatic reactions that share several first steps for biosynthesis of other tetrapyrroles such as heme, siroheme and phycobilins.
Koichi Kobayashi, Tatsuru Masuda
doaj   +1 more source

Single-molecule magnetism of tetrapyrrole lanthanide compounds with sandwich multiple-decker structures [PDF]

, 2016
The single-molecule magnetism of sandwich tetrapyrrole lanthanide compounds has clearly initiated a huge renaissance in the magnetochemistry of pure lanthanide coordination complexes.
Jiang, Jianzhuang, Wang, Bing-Wu, Bian, Yongzhong, Wang, Hailong, Gao, Song   +4 more
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High Fluorescence of Phytochromes Does Not Require Chromophore Protonation

Molecules
Fluorescing proteins emitting in the near-infrared region are of high importance in various fields of biomedicine and applied life sciences. Promising candidates are phytochromes that can be engineered to a small size and genetically attached to a target
Sagie Katz, Hoang Trong Phan, Fabian Rieder, Franziska Seifert, Markus Pietzsch, Jan Laufer, Franz-Josef Schmitt, Peter Hildebrandt   +7 more
doaj   +1 more source

A model for tetrapyrrole synthesis as the primary mechanism for plastid-to-nucleus signaling during chloroplast biogenesis

Frontiers in Plant Science, 2013
Chloroplast biogenesis involves the co-ordinated expression of the chloroplast and nuclear genomes, requiring information to be sent from the developing chloroplasts to the nucleus.
Matthew J. Terry, Matthew J. Terry, Alison G. Smith   +2 more
doaj   +1 more source

Investigating the biosynthesis of heam d1 in pseudomonas aeruginosa: a cofactor for dissimilatory nitrite reductase. [PDF]

, 2010
PhDHaem d1 is a modified tetrapyrrole unique to the periplasmic enzyme nitrite reductase where it acts in catalysing the reduction of nitrite (NO2 -) to nitric oxide (NO), as part of denitrification.
Parmar-Bhundia, Vina
core  

Tetrapyrrole Synthesis of Photosynthetic Chromerids Is Likely Homologous to the Unusual Pathway of Apicomplexan Parasites   [PDF]

, 2011
Most photosynthetic eukaryotes synthesize both heme and chlorophyll via a common tetrapyrrole biosynthetic pathway starting from glutamate. This pathway was derived mainly from cyanobacterial predecessor of the plastid and differs from the heme synthesis
Luděk Kořený, Jan Janouškovec, Koreny, L, Miroslav Oborník, Janouskovec, J, Koreny, Ludek, Janouskovec, Jan, Obornik, Miroslav, Keeling, PJ, Sobotka, Roman, Oborník, M, Patrick J. Keeling, Roman Sobotka, Sobotka, R, Keeling, Patrick J.   +14 more
core   +1 more source