Abstract Effect of a developing egg location on activity of glucokinase, phosphofructokinase, pyruvate kinase, glucose-6-phosphate dehydrogenase, L-α-glycerol-3-phosphate dehydrogenases, lactate dehydrogenase, succinate dehydrogenase, alkaline phosphatase, adenosine triphosphatase and L-α-glycerol-3-phosphatase in the shell gland was examined, and some properties of adenosine triphosphatase in the shell gland mucosa were also investigated. Significant difference of activity of most enzymes examined, due to a developing egg location in the shell gland, was observed in the shell gland and its mucosa. The existence of Mg2+-dependent and Ca2+-dependent adenosine triphosphatase in the mucosa was observed. No significant enhanced activity of the enzyme by Na+, K+, or Na+ plus K+ was observed. The apparent Km value for ATP of the Mg2+-dependent adenosine triphosphatase was 0.29mM and that of Ca2+-dependent adenosine triphosphatase was 0.15 mM. The effect of Ca2+ on Mg2+-dependent adenosine triphosphatase was non competitive, while that of Mg2+ on Ca2+-dependent adenosine triphosphatase was competitive. The activity of L-α-glycerol-3-phosphatase was shown to change during egg formation process. The possible participation of this enzyme in calcification process in the shell gland is discussed.
Biochemical studies on the shell gland of Japanese quail, Coturnix coturnix japonica. 1. Effect of a developing egg location on activity of glycolytic and other enzymes in the shell gland.
Published 1973 in Poultry Science
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- Publication year
1973
- Venue
Poultry Science
- Publication date
1973-07-01
- Fields of study
Biology, Medicine, Chemistry
- Identifiers
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- Source metadata
Semantic Scholar, PubMed
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