Measurement of rat heart fatty acid binding protein by ELISA. Tissue distribution, developmental changes and subcellular distribution.
Measurement of rat heart fatty acid binding protein by ELISA. Tissue distribution, developmental changes and subcellular distribution.
复制标题
通过 ELISA 测定大鼠心脏脂肪酸结合蛋白。
DOI:
10.1016/s0022-2828(87)80394-2
复制
发表时间:
1987
影响因子:
5
通讯作者:
Brecher,P
中科院分区:
文献类型:
--
作者:
Crisman,TS;Claffey,KP;Saouaf,R;Hanspal,J;Brecher,P
A class of soluble, low molecular weight proteins collectively called fatty acid binding proteins (FABP) are thought to function in the intracellular movement of fatty acids. To understand more clearly the role of FABP in cardiac metabolism, we used ELISA and immuno-blotting techniques to study the distribution of heart FABP in several rat tissues, compare male and female rat heart content, quantitate developmental changes, and determine its subcellular distribution.Immunoreactive protein was found in appreciable amounts in rat heart, red skeletal muscle and kidney. Adult rat heart contained about 1.5 mg FABP/g tissue wet weight with the atrial content being approximately 50% of the ventricular concentration. No significant difference was detected between the sexes. The amount of FABP increased progressively during development from fetal to adult animals, and measureable amounts were found in 17-day-old fetal tissue. Comparisons between myoglobin and FABP showed that FABP appeared carlier than myoglobin in development, but myoglobin was more abundant than FAPB at birth. Using immunoblots it was determined that rat heart FABP was localized in the cytosol with no detectable intramitochondrial material.