Escherichia coli transcription termination factor Rho is a hexameric RNA/DNA helicase that terminates transcription using energy derived from the hydrolysis of ATP. The ATP binding sites of Rho are located at the interfaces of adjoining subunit C-terminal domains and have the Walker A and B motifs...
GTP plus water mimic ATP in the active site of protein kinase CK2. The structures of the catalytic subunit of protein kinase CK2 from Zea mays complexed with Mg2+ and with analogs of ATP or GTP were determined to 2.2 A res... K Niefind,M Pütter,B Guerra,... - 《Nature Structural ...
Hosseini, M. W.; Lehn, J. M.; Mertes, M. P. Efficient molecular Catalysis of ATP-hydrolysis by protonated macrocyclic polyamines. Helv. Chim. Acta 1983, 66, 2454-2466.Efficient Molecular Catalysis of ATP-Hydrolysis by Protonated Macrocyclic Polyamines. Mir Wais Hosseini,Jean Marie Lehn,...
atphydrolysis天文学水解phosphateastronomy ATPHydrolysis Presentedby:RamiAmro Instructor:Dr.Neiman • Ch.13:Directmovementofthemotorsalongthe filamentthoughttobearesultofconformational changeswhileitisattached. • Ch.14: • Howchangesinnucleotidestatemodifythe associationofamotorwiththefilament. • Howthese...
2) ATPase and ATP synthesis ATP合成和分解3) ATP hydrolysis ATP水解 1. The Mechanism of Biomolecular Motors' Unidirectional Movement and the Kinetics of ATP Hydrolysis; 生物分子马达的定向输运机制及其ATP水解动力学 更多例句>> 4) ATP hydrolytic enzyme ATP水解酶...
The membrane-bound ATP synthetase complex of Methanobacterium thermoautotrophicum showed maximum activity for ATP hydrolysis at pH 8, at temperatures between 65 and 70 degrees C, and at an ATP-Mg2+ ratio of 0.5. Anaerobic conditions were not prerequisite for enzyme activity. The enzyme showed a ...
We have measured the rates and efficiencies of DNA unwinding (the number of ATP molecules hydrolyzed per DNA base pair unwound) catalyzed by the RecBC,RecBCD-K177Q (a site-directed mutant in the putative ATP-binding site in the RecD subunit), and RecBCD enzymes from Escherichia coli. The...
The enzyme F-adenosine triphosphatase (ATPase) is a molecular motor that converts the chemical energy stored in the molecule adenosine triphosphate (ATP) into mechanical rotation of its -subunit. During steady-state catalysis, the three catalytic sites of F operate in a cooperative fashion such tha...
Energetically, the RecQ helicase couples the hydrolysis of one ATP molecule to the translocation of more than one nucleotide (1.6±0.3). Thus, our data show that RecQ translocates on ssDNA by efficiently coupling the hydrolysis of one ATP molecule into structural alterations that result in movement...
However, the rates of ATP synthesis and ATP hydrolysis catalyzed by the reconstituted CF O F 1 were usually very low; i.e., almost 1% of the turnover found in chloroplasts (3–8). Recently, we have shown that reconstituted CF o F 1 catalyzes ATP synthesis with a rate of about 200 ...