Calcium-binding protein and calcium absorption in the laying quail (Coturnix coturnix japonica).

A vitamin D3-dependent calcium-binding protein (CaBP) has been found in the intestinal mucosa of Japanese quail (Coturnix coturnix japonica). This protein is similar, if not identical to that of the chick (Gallus domesticus). A similar protein fraction appears also in uterine mucosa of laying quail. Both intestinal and uterine CaBP levels are higher in laying than in non-laying quails. Uterine CaBP was higher during egg shell formation than during uterine inactivity. The slight corresponding difference in the intestinal CaBP was not significant. Intestinal calcium absorption measured with 91Y as a reference substance was higher in birds during formation of egg shell than in those with inactive uteri. The possible role of CaBP in calcium translocation is discussed.

[1]  C. Fullmer,et al.  Bovine intestinal calcium-binding proteins. Purification and some properties. , 1973, Biochimica et biophysica acta.

[2]  S. Hurwitz,et al.  Regulation of calcium absorption by fowl intestine. , 1973, The American journal of physiology.

[3]  R. Corradino.  EMBRYONIC CHICK INTESTINE IN ORGAN CULTURE A Unique System for the Study of the Intestinal Calcium Absorptive Mechanism , 1973 .

[4]  S. Hurwitz,et al.  Uterine calcium-binding protein in the laying fowl. , 1973, Comparative biochemistry and physiology. A, Comparative physiology.

[5]  S. Hurwitz,et al.  Calcium restriction and intestinal calcium-binding protein in the laying fowl. , 1973, Comparative biochemistry and physiology. A, Comparative physiology.

[6]  R. Wasserman,et al.  Vitamin D, calcium, and protein synthesis. , 1973, Vitamins and hormones.

[7]  S. Hurwitz,et al.  Relationship of duodenal calcium-binding protein to calcium absorption in the laying fowl. , 1972, Comparative biochemistry and physiology. B, Comparative biochemistry.

[8]  S. Hurwitz,et al.  Site of vitamin D action in chick intestine. , 1972, The American journal of physiology.

[9]  P. Simmons.  Quantitation of plasma proteins in low concentrations using RID. , 1971, Clinica chimica acta; international journal of clinical chemistry.

[10]  R. Wasserman,et al.  Vitamin D3 induction of a calcium-binding protein in the uterus of the laying hen. , 1968, Archives of biochemistry and biophysics.

[11]  R. Wasserman,et al.  Vitamin D3-Induced Calcium-Binding Protein in Chick Intestinal Mucosa , 1966, Science.

[12]  S. Hurwitz,et al.  ABSORPTION OF CALCIUM AND PHOSPHORUS ALONG THE GASTROINTESTINAL TRACT OF THE LAYING FOWL AS INFLUENCED BY DIETARY CALCIUM AND EGG SHELL FORMATION. , 1965, The Journal of nutrition.