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A fatty-acid-binding protein (FABP) from the cytosol of bovine brain was purified by Sephadex G-75 filtration and electrofocusing. The purified FABP behaved as an anionic protein with an apparent molecular mass of 14.7 kDa; its complete amino acid sequence was determined and microheterogeneity was observed. Sequence comparison with other FABPs of known sequence and the observed microheterogeneity demonstrated the presence in brain of several homologous FABPs closely related to heart FABP and bovine mammary-derived growth inhibitor (MDGI).
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Schoentgen et al. (1989) studied this question.
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