ATP complexes

Another molecule of ATP binds to the S-1 head, forming an actin-myosin-ATP complex. 

CHENG F and BREEN K (2000) On the ahihty of four flavonoids, baicilein, luteohn, naringenin, and quercetin, to suppress the Feuton reaction of the iron-ATP complex, Biometals, 13, 77-83. 

Figure 10.4 Nucleophilic attack of the C6-OH group of glucose on the y-phosphate of Mg2+-ATP complex. (From Voet and Voet, 2004. Reproduced with permission from John Wiley Sons., Inc.)...

The structure of the APPBP1-UBA3-NEDD8-ATP complex reveals the basis for selective ubiquitin-like protein activation by an El, Mol Cell 2003, 32, 1427-1437. 

The electron-transfer reactions between the /3-cyclodextrin (/3-CD) N-substituted phenothiazine derivatives and /3-CD.ATPO (4-acetoxy-2,2,6,6-tetramethyl-1-oxopiperidinium hexachloroantimonate) were found to be influenced by the conformations of the phenothiazine derivatives restricted by the /3-CD cavity. N-Phenylphenothiazine (PPT) and A-phenylethylphenothiazine (PEPT), included by /3-CD, can transfer an electron to the /S-CD.ATP complex. No electron transfer was observed between the /3-CD.A-benzylphenothiazine (/3-CD.BPT) complex under the same conditions. The conformation of the /3-CD.BPT complex is such that the oxidation centre was shielded by the /3-CD wall and the substituent. However, electron-transfer reactions between y-CD.BPT and /3-CD.ATP and nitric acid occurred. ... 

Sigman et al. (1972) have reported an example of metal-ion facilitated phosphorylation of an alcohol by adenosinetriphosphate (ATP). Complexing of the metal ion, ATP, and 2-hydroxymethyl-... 

Nonetheless, there remained some uncertainty regarding the actual intracellular concentration of uncomplexed magnesium ion, which controls the fraction of total ATP complexed with Mg ... 

Myosin-ATP complex is hydrolyzed rapidly to produce an conformationally energized state (often designated by an asterisk ). 

Serotonin is stored in synaptic vesicles and blood platelets in the form of an ATP complex in the ratio of 2 1. Very little is known about its release, but exocytosis is the assumed mechanism. The released neurotransmitter is deactivated primarily by reuptake, but a significant amount is metabolized by MAO to the corresponding indoleacetic acid. 

Chromium(III) forms stable complexes with adenosine-S -triphosphate.840,841,842 These are kinetically inert analogues of magnesium ATP complexes and may be used to study enzyme systems. The complexes prepared are chiral and may be distinguished in terms of chirality at the metal centre (198,199).843 The related complex of chromium(lll) with adenosine-5 -(l-thiodiphosphate) has been prepared the diastereoisomers were separated.844 The stereospecific synthesis of chromium(III) complexes of thiophosphates has been reported845 by the method outlined in equation (47), enabling the configuration of the thiophosphoryl centre to be determined. The availability of optically pure substrates will enable the stereospecificity of various enzyme systems to be investigated.845... 

It is possible that there is an additional E TyrATP complex between the ground state E Tyr ATP complex and the transition state, in which the enzyme and... 

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