Results 101 to 110 of about 18,931 (242)

Structural studies of three enzymes: telomerase, the methyltransferase CobJ and pectate lyase [PDF]

, 2011
PhDThis thesis investigates the structure and function of three enzymes of biotechnological and biomedical interest: telomerase from Caenorhabtidis elegans, pectate lyase from Bacillus subtilis and the methyltransferase CobJ from Rhodobacter capsulatus.
To, Teng Teng
core   +3 more sources

Catabolism of Tetrapyrroles

CHIMIA, 1994
The enzymatic degradation of naturally occurring tetrapyrrolic pigments (heme, chlorophylls, and vitamin B12) is shortly reviewed.
openaire   +3 more sources

The transcriptional response of Arabidopsis leaves to Fe deficiency

Frontiers in Plant Science, 2013
Due to its ease to donate or accept electrons, iron (Fe) plays a crucial role in respiration and metabolism, including tetrapyrrole synthesis, in virtually all organisms.
Jorge eRodriguez-Celma, I-Chun ePan, Wenfeng eLi, Ping eLan, Thomas J. Buckhout, Wolfgang eSchmidt   +5 more
doaj   +1 more source

Tetrapyrrole-based drought stress signalling

, 2015
Tetrapyrroles such as chlorophyll and heme play a vital role in primary plant metabolic processes such as photosynthesis and respiration. Over the past decades, extensive genetic and molecular analyses have provided valuable insights into the complex ...
Ryan Whitford, Whitford, R., Nagahatenna, D., Dilrukshi S. K. Nagahatenna, Langridge, P., Peter Langridge   +5 more
core   +1 more source

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

Conformational control of cofactors in nature functional tetrapyrrole conformations in the photosynthetic reaction centers of purple bacteria

, 2011
Chemically identical tetrapyrrole cofactors such as hemes and chlorophylls participate in functionally diverse biological roles. An analysis of the available protein structural data for the bacteriochlorophylls in the photosynthetic reaction center gives
Stuart A. MacGowan, Mathias O. Senge, Senge, Mathias O., MacGowan, Stuart A.; id_orcid, SENGE, MATHIAS   +4 more
core   +2 more sources

A cationic tetrapyrrole inhibits toxic activities of the cellular prion protein

Scientific Reports, 2016
Prion diseases are rare neurodegenerative conditions associated with the conformational conversion of the cellular prion protein (PrPC) into PrPSc, a self-replicating isoform (prion) that accumulates in the central nervous system of affected individuals.
Tania Massignan, S. Cimini, C. Stincardini, Milica Cerović, Ilaria Vanni, Saioa R Elezgarai, Jorge Moreno, M. Stravalaci, A. Negro, Valeria Sangiovanni, Elena Restelli, G. Riccardi, M. Gobbi, J. Castilla, T. Borsello, R. Nonno, E. Biasini   +16 more
semanticscholar   +1 more source

GUN1 regulates tetrapyrrole biosynthesis

, 2019
The biogenesis of the photosynthetic apparatus in developing chloroplasts requires the assembly of proteins encoded on both nuclear and chloroplast genomes.
Leister, Dario, Hayashi, Yuuki, Okamoto, Haruko, Mochizuki, Nobuyoshi, Kacprzak, Sylwia M., Shimada, Tomohiro, Watanabe, Satoru, Nagatani, Akira, Arai, Munehito, Masuda, Tatsuru, Terry, Matthew J., Tanaka, Kan, Shimizu, Takayuki   +12 more
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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

Evolution of the Tetrapyrrole Biosynthetic Pathway in Secondary Algae: Conservation, Redundancy and Replacement

PLoS ONE, 2016
Tetrapyrroles such as chlorophyll and heme are indispensable for life because they are involved in energy fixation and consumption, i.e. photosynthesis and oxidative phosphorylation.
Jaromír Cihlář, Z. Füssy, A. Horák, M. Oborník   +3 more
semanticscholar   +1 more source