Purification and partial characterization of cellular retinol-binding protein, type two, from human small intestine
Article Abstract:
Human cellular retinol-binding protein, type II /hCRBP(II)A and hCRBP(II)B~ was purified from human small intestine homogenates. Amino acid sequence analysis revealed that of the 36 residues in the N-terminal of hCRBP(II)A, only one differs from the rat cellular retinol-binding protein type IIA. Although hCPRB(II)B was blocked at the N-terminal, this blockage had no effect in its binding properties. Competitive binding assay revealed that hCPRB(II) binds both retinal and retinol. Immunohistochemical analysis of the jejunum showed that hCPRB(II) has higher densities in the jejunum's proximal end.
Publication Name: The Journal of Nutrition
Subject: Food/cooking/nutrition
ISSN: 0022-3166
Year: 1992
User Contributions:
Comment about this article or add new information about this topic:
Sodium-dependent transport of riboflavin in brush border membrane vesicles of rat small intestine is an electrogenic process
Article Abstract:
A study was done on the process which initiates sodium-dependent transport of riboflavin in brush border membrane vesicles of rat small intestines. Results show that riboflavin transport across the intestinal brush border membrane is an electrogenic process which is aided by a specific sodium ion riboflavin cotransport system at physiological substrate concentrations. The process is affected by changes in pH which is reflective of its electrogenic nature.
Publication Name: The Journal of Nutrition
Subject: Food/cooking/nutrition
ISSN: 0022-3166
Year: 1992
User Contributions:
Comment about this article or add new information about this topic:
Inanition may reduce alkaline phosphatase activity in liver and intestine of zinc-deficient mice
Article Abstract:
A study was done on the effects of inanition on alkaline phosphatase deficiency in liver and intestine of zinc-deficient mice. Results show that feeding mice with a basal diet containing three percent lipid improves inanition in zinc-deficient mice. It was further shown that liver alkaline phosphate activity decreases as a response to associated inanition in mice and not to the deficiency of zinc.
Publication Name: The Journal of Nutrition
Subject: Food/cooking/nutrition
ISSN: 0022-3166
Year: 1992
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Childhood nutrition and adult cardiovascular disease. Nutrition and immunity: from A to Z
- Abstracts: Dietary lipids and immune function. Immunosuppression and alteration of resistance to pulmonary tuberculosis in guinea pigs by protein undernutrition
- Abstracts: Nutrition at high altitude. Potentiation of acute acetaminophen lethality by selenium and vitamin E deficiency in mice
- Abstracts: Iron deficiency alters DMBA-induced tumor burden and natural killer cell cytotoxicity in rats
- Abstracts: Zinc deficiency alters barrier function of cultured porcine endothelial cells. Zinc deficiency alters the protein composition of the membrane skeleton but not the extractability or oligomeric form of spectrin in rat erythrocyte membranes