Results 61 to 70 of about 347,780 (327)

A dedicated haem lyase is required for the maturation of a novel bacterial cytochrome c with unconventional covalent haem binding [PDF]

, 2007
In bacterial c-type cytochromes, the haem cofactor is covalently attached via two cysteine residues organized in a haem c-binding motif. Here, a novel octa-haem c protein, MccA, is described that contains only seven conventional haem c-binding motifs ...
Allen J.W.A., Allen J.W.A., Allen J.W.A., Allen J.W.A., Beliaev A.S., de Vitry C., Dobbin P.S., Hartshorne S., Kroger A., Lorenzen J.P., Mileni M., Moore G.R., Mowat C.G., Scott R.A., Thony-Meyer L., Walker F.A., Wood P.M., Yang F.   +17 more
core   +1 more source

Nitrate metabolism in tobacco leaves overexpressing Arabidopsis nitrite reductase.

Plant physiology and biochemistry : PPB, 2015
Primary nitrogen assimilation in plants includes the reduction of nitrite to ammonium in the chloroplasts by the enzyme nitrite reductase (NiR EC:1.7.7.1) or in the plastids of non-photosynthetic organs.
S. Davenport, P. Le Lay, Juan Pablo Sanchez-Tamburrrino   +2 more
semanticscholar   +1 more source

A functional description of CymA, an electron-transfer hub supporting anaerobic respiratory flexibility in Shewanella [PDF]

, 2012
CymA (tetrahaem cytochrome c) is a member of the NapC/NirT family of quinol dehydrogenases. Essential for the anaerobic respiratory flexibility of shewanellae, CymA transfers electrons from menaquinol to various dedicated systems for the reduction of ...
Butt, Julea N., Bye, Jordan, Cheesman, Myles R., Fredrickson, Jim, Jeuken, Lars J. C., Lowe, Thomas G., Marritt, Sophie J., McMillan, Duncan G. G., Richardson, David J., Shi, Liang, Zachara, John   +10 more
core   +1 more source

Dissimilatory Nitrite and Nitric Oxide Reductases [PDF]

Chemical Reviews, 1996
The inorganic nitrogen cycle (Figure 1) consists of several linked biological processes and one abiological process, the reaction of N2 and O2 in lightning discharges and internal combustion engines to produce NOx and, ultimately, nitrate. All of the processes except nitrogen fixation involve reduction or oxidation of species containing N-O bonds of ...
openaire   +4 more sources

Technological activities of Staphylococcus carnosus and Staphylococcus simulans strains isolated from fermented sausages [PDF]

, 2005
The aim of this study was to determine the technological properties of 2 strains of Staphylococcus simulans (Ssm12, Ssm21) and 4 strains of S. carnosus (SC28, SC31, SC54 and SC55) for the selection of a potential starter cultures to employ in the ...
BLAIOTTA, GIUSEPPE, CASABURI, A., MAURIELLO, GIANLUIGI, PEPE, OLIMPIA, VILLANI, FRANCESCO   +4 more
core   +1 more source

Cyanate Assimilation by the Alkaliphilic Cyanide-Degrading Bacterium Pseudomonas pseudoalcaligenes CECT5344: Mutational Analysis of the cyn Gene Cluster [PDF]

, 2019
The alkaliphilic bacterium Pseudomonas pseudoalcaligenes CECT5344 can grow with cyanate, cyanide, or cyanide-containing industrial residues as the sole nitrogen source, but the assimilation of cyanide and cyanate takes place through independent pathways.
Cabello, Purificación, Ibáñez, María Isabel, Luque-Almagro, Víctor Manuel, Moreno-Vivián, Conrado, Roldán, María Dolores, Sáez, Lara P.   +5 more
core   +1 more source

Regulation of Nitrite Reductase [PDF]

Plant Physiology, 1987
A protein with molecular mass of 67 kilodaltons is immunoprecipitated from in vitro translated products obtained from rabbit reticulocyte lysate primed with polyadenylated RNA from nitrate treated illuminated pea seedlings. This protein resembles the native nitrite reductase because of its competitive elimination when immunoprecipitation of in vitro ...
S C, Gupta, L, Beevers
openaire   +2 more sources

Nanozymes at the Bio‐Nano Interface: From Synthesis, Defect Engineering, Catalytic Behavior in Biological Microenvironments, and Biosafety Implications

Advanced Materials Interfaces, EarlyView.
Nanozymes (NZs) have emerged as versatile artificial enzymes with tunable catalytic properties driven by atomic coordination, defect engineering, and surface chemistry. This review presents a bio–nano interface framework linking synthesis strategies, structural design, and catalytic behavior within complex biological microenvironments.
Karen Guadalupe Quintero‐Garrido, Aída Jimena Velarde‐Salcedo, Alejandro López‐Amador, Noé Arjona, Citlali Uitz Toalá, Carmen Gonzalez, Beatriz Liliana España‐Sánchez   +6 more
wiley   +1 more source

Natural Products Inspired Scaffold Diversification Leads to Unnatural Molecular Warhead and Covalent Strategy to Modulating Protein Function through Electrophilic Bromine Transfer

Advanced Science, EarlyView.
We report a new thiolate‐reactive α,α‐gem‐dibromo lactam warhead that activates transcription factor Nrf2 and demonstrates anti‐inflammatory activities, which have implications in cancer, neurodegeneration, and cardiovascular diseases. RNA‐seq illuminated detailed transcriptional profiles, and chemical reactions with cysteine‐containing compounds ...
Beau R. Brummel, Sofia Kokkaliari, Qiwen Gao, Jinjing Chen, Larissa Costa de Almeida, Srinivasarao Tenneti, Derek A. Leas, Eli Levit, Lewis S. Alexander, Khalil A. Abboud, Pingrong Wei, Michael D. Cameron, James R. Rocca, Ranjala Ratnayake, Donna D. Zhang, Hendrik Luesch, Robert W. Huigens III   +16 more
wiley   +1 more source

Decreased nitrite reductase activity of deoxyhemoglobin correlates with platelet activation in hemoglobin E/ß-thalassemia subjects. [PDF]

PLoS ONE, 2018
Nitric oxide (NO) can be generated from nitrite by reductase activity of deoxygenated hemoglobin (deoxyHb) apparently to facilitate tissue perfusion under hypoxic condition.
Attaphon Chamchoi, Sirada Srihirun, Kittiphong Paiboonsukwong, Thanaporn Sriwantana, Piyadon Sathavorasmith, Kovit Pattanapanyasat, Rhoda Elison Hirsch, Alan N Schechter, Nathawut Sibmooh   +8 more
doaj   +1 more source