[Analysis of creatine kinase variation in some members of the family Acipenseridae].
Identifieur interne : 000259 ( Ncbi/Curation ); précédent : 000258; suivant : 000260[Analysis of creatine kinase variation in some members of the family Acipenseridae].
Auteurs : E V Kuz'MinSource :
- Genetika [ 0016-6758 ] ; 2008.
English descriptors
- KwdEn :
- MESH :
- chemical , genetics : Creatine Kinase, Isoenzymes.
- chemical , metabolism : Creatine Kinase, Isoenzymes.
- genetics : Fishes.
- metabolism : Fishes, Muscle, Skeletal, Muscles.
- Animals, Organ Specificity, Polymorphism, Genetic.
Abstract
Creatine kinase (E.C. 2.7.3.2) was examined in stellate sturgeon Acipenser stellatus Pallas, Russian sturgeon A. gueldenstaedtii Brandt, European sterlet A. ruthenus L., Siberian sterlet A. ruthenus marsiglii Brandt, and great sturgeon (beluga) Huso huso L., using polyacrylamide gel electrophoresis. Two loci for creatine kinase were identified: CK-A* in white skeletal muscle and CK-C* in stomach wall muscle. Most species proved to be monomorphic at the CK-A* locus, showing the same phenotype represented by a single band. Heterogeneity and polymorphism in creatine kinase, determined by the CK-A* locus, were found only in Russian sturgeon. Based on the results of densitometric analysis of band staining intensity, we have advanced a hypothesis that synthesis of subunits of the CK-A* product in this species was controlled by eight genes. However, the genotype frequencies in the sample were significantly different from those theoretically expected upon free and independent gene recombination. The results of this study support the hypothesis on the absence of heterodimeric creatine kinase molecules in the skeletal muscle of Russian sturgeon. Locus CK-C* in sterlet was revealed as a single, intensely stained, rapidly migrating fraction, whereas in Russian sturgeon, the enzyme activity in this zone was very weak. No creatine kinase was found in liver, kidneys, spleen, heart, and intestine mucous tunic.
PubMed: 18666555
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pubmed:18666555Le document en format XML
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