Gluconolactonase: a zinc containing metalloprotein |
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| Authors: | W. R. Carper Aruna S. Mehra D. P. Campbell J. A. Levisky |
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| Affiliation: | (1) Department of Chemistry, Wichita State University, 67208 Wichita, Kansas, USA;(2) Frank J. Seiler Research Laboratory, USAF Academy, 80840, Colorado, USA |
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| Abstract: | Summary A metal analysis of bovine hepatic gluconolactonase indicates the presence of at least 1 atom of tightly bound zinc per enzyme subunit in this hexameric protein. Other divalent metals are present in lesser quantities and are subject to removal by EDTA. Activation energies for the manganese and magnesium catalyzed reactions are 5.3 and 11.0 kcal/mole, respectively. |
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