Results 61 to 70 of about 795,957 (364)
Structures and proton-pumping strategies of mitochondrial respiratory enzymes [PDF]
, 2001 Enzymes of the mitochondrial respiratory chain serve as proton pumps, using the energy made available from electron transfer reactions to transport protons across the inner mitochondrial membrane and create an electrochemical gradient used for the ...
Chan, Sunney I., Schultz, Brian E.
core +1 more source
Coupling of actin hydrolysis and polymerization: Reduced description with two nucleotide states
, 2010 The polymerization of actin filaments is coupled to the hydrolysis of adenosine triphosphate (ATP), which involves both the cleavage of ATP and the release of inorganic phosphate.
Abramowitz M. +6 more
core +1 more source
How many metals does it take to fix N2? A mechanistic overview of biological nitrogen fixation [PDF]
, 2006 During the process of biological nitrogen fixation, the enzyme nitrogenase catalyzes the ATP-dependent reduction of dinitrogen to ammonia. Nitrogenase consists of two component metalloproteins, the iron (Fe) protein and the molybdenum-iron (MoFe) protein;
Howard, James B., Rees, Douglas C.
core +1 more source
Influence of sulfite on ATPase activity of coupling factor CF(1) isolated from spinach chloroplasts [PDF]
The Ukrainian Biochemical Journal, 2019 The present study of sulfite participation in the regulation of the chloroplast ATP-synthase complex can help to understand the mechanisms of acid rains toxic effects on the plant photosynthetic apparatus.
O. B. Onoiko +2 more
doaj +1 more source
PLoS Biology, 2014 A slow mechanism of retinal synaptic inhibition involves hydrolysis of ATP released from pannexin 1 channels (from the tips of horizontal cell dendrites); the resulting protons and phosphates acidify the synaptic cleft, which inhibits neurotransmitter ...
Rozan Vroman +6 more
semanticscholar +1 more source
Effect of Tentoxin on the Activation and on the Catalytic Reaction of Reconstituted H+-ATPase from Chloroplasts [PDF]
, 1992 The proton-translocating ATPase from chloroplasts, CF0F1, was isolated, purified and reconstituted into asolectin liposomes. The effect of the energy transfer inhibitor, tentoxin, on different functions of the enzyme was investigated.
Dahse, Ingo +2 more
core +1 more source
ATP Hydrolysis Is Required for Cohesin's Association with Chromosomes [PDF]
Current Biology, 2003 A multi-subunit protein complex called cohesin is involved in holding sister chromatids together after DNA replication. Cohesin contains four core subunits: Smc1, Smc3, Scc1, and Scc3. Biochemical studies suggest that Smc1 and Smc3 each form 50 nm-long antiparallel coiled coils (arms) and bind to each other to form V-shaped heterodimers with globular ...
Kim Nasmyth +5 more
openaire +4 more sources
PLoS Biology, 2004 In response to activation by WASP-family proteins, the Arp2/3 complex nucleates new actin filaments from the sides of preexisting filaments. The Arp2/3-activating (VCA) region of WASP-family proteins binds both the Arp2/3 complex and an actin monomer and
Mark J Dayel, R Dyche Mullins
doaj +1 more source
Kinetic regularities and a possible mechanism of ATP non-enzymatic hydrolysis induced by calix[4]arene С-107 [PDF]
The Ukrainian Biochemical JournalThe kinetic model of calix[4]arene-induced ATP hydrolysis was elaborated. It is assumed that calix[4]arene С-107 molecules form a complex with nucleoside triphosphate, ensuring the release of inorganic phosphate Рі, and then switch into an inactive ...
S. O. Kosterin +5 more
doaj +1 more source
Structural characterization of two metastable ATP-bound states of P-glycoprotein. [PDF]
PLoS ONE, 2014 ATP Binding Cassette (ABC) transporters couple the binding and hydrolysis of ATP to the transport of substrate molecules across the membrane. The mechanism by which ATP binding and/or hydrolysis drives the conformational changes associated with substrate
Megan L O'Mara, Alan E Mark
doaj +1 more source