isozyme

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isoenzyme

 [i″so-en´zīm]
any of several forms of an enzyme that all catalyze the same reaction but may differ in reaction rate, inhibition by various substances, electrophoretic mobility, or immunologic properties. Several enzymes, particularly alkaline phosphatase, lactate dehydrogenase, and creatine kinase, have clinically important isoenzymes. Isoenzymes are separated by electrophoresis, and the pattern indicates which damaged organ has released the enzymes.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

i·so·en·zyme

(ī'sō-en'zīm),
An enzyme (one of a group) that catalyze the same reaction but may be differentiated by variations in physical properties, such as isoelectric point, electrophoretic mobility, kinetic parameters, or modes of regulation, for example, lactate dehydrogenase, a tetramer composed of varying amounts of α and β subunits (that is, 4α, 3α + 1β, 2α + 2β, 1α + 3β, and 4β).
Synonym(s): isozyme
Farlex Partner Medical Dictionary © Farlex 2012

isozyme

(ī′sə-zīm′)
n.
An isoenzyme.

i′so·zy′mic adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

i·so·en·zyme

(ī'sō-en'zīm)
One of a group of enzymes that catalyze the same reaction but may be differentiated by variations in physical properties, such as isoelectric point, electrophoretic mobility, kinetic parameters, or modes of regulation.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

isozyme

see ISOENZYME.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
Inter-specific hybridization between Drosophila species group melanogaster sibling species: isozymic patterns and reproductive relationships.
Genetic variation, differentiation and evolution in a species complex of tropical shrubs based on isozymic data.
Diversity of Untied States hybrid maize germplasm; Isozymic chromatographic evidence.
We discussed the probability that each possible phylogenetic topology was correct in the context of previous evidence on morphological and isozymic divergence between these species (Lessios 1979, 1981), placed the emergence of gametic isolation on each tree, and concluded that "there is no correlation between reproductive isolation and existing measures of genetic divergence within the genus (Lessios and Cunningham 1990, p.
Isozymic classification of pearl millet (Pennisetum glaucum, Poaceae) landraces from Niger (West Africa).
Measurement of genetic diversity among maize hybrids; A comparison of isozymic, RFLP, pedigree, and heterosis data.
RFLPs were more efficient than isozymic or HPLC methods; RFLPs discriminated among closely related (75-95% by pedigree) inbreds.
The characterization and assessment of genetic diversity among maize (Zea mays, L.) hybrids that are widely grown in France: Chromatographic data and isozymic data.
Measurement of genetic diversity among maize hybrid, a comparison of isozymic, RFLP, pedigree, and heterosis data.
Stuber's laboratory utilizing marker technology involved the enhancement of a large set of isozymic (enzyme) genetic markers which were then used to identify chromosomal regions with major factors for a number of important agronomic traits in corn.