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AcetylcholinesteraseDelivered in a part as a lecture on June 2nd, 1964, at the Medizinische Forschungsanstalt der Max-Planck-Gesellschaft, Göttingen and on May 19th, 1965, at Max-Planck-Institut für Kohlenforschung, Abteilung Strahlenchemie, Mühleim/Ruhr. (1967)

Engelhard, N. ; Prchal, K. ; Nenner, M.

Weinheim : Wiley-Blackwell

Angewandte Chemie International Edition in English 6 (1967), S. 615-626

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ISSN: 0570-0833

Keywords: Acetylcholin esterase ; Enzymes ; Chemistry ; General Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Acetylcholinesterase plays a vital part in the functioning of nerves, and serious physiological damage arises from its blockage by esters of phosphonic and phosphoric acid used e. g. in pesticides. The properties and the mechanism of action of acetylcholinesterase, which show many similarities to those of other hydrolases, are described. Therapeutic agents (reactivators) for the toxic phosphorus compounds specified are also discussed.

Additional Material: 4 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/anie.196706151

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Structure and Mechanism of Action of the Active Center of Yeast Pyruvate DecarboxylaseDedicated to the memory of Prof. Dr. W. Langenbeck (1967)

Schellenberger, A.

Weinheim : Wiley-Blackwell

Angewandte Chemie International Edition in English 6 (1967), S. 1024-1035

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ISSN: 0570-0833

Keywords: Active centers ; Pyruvate decarboxylase ; Enzymes ; Chemistry ; General Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Kinetic studies have shown that the two low molecular-weight components of yeast pyruvate decarboxylase (thiamine pyrophosphate and Mg2⊕ ions) first add rapidly and reversibly to the apoenzyme in binary equilibria. The resulting adduct then “cyclizes” in a rate-determining, practically irreversible reaction to form the thermodynamically stable holoenzyme. These results were supplemented and extended by the testing of numerous analogues of thiamine pyrophosphate in enzyme experiments and then used for the interpretation of the enzyme reaction.

Additional Material: 6 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/anie.196710241

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