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The amino acid composition of ribonuclease 总被引:18,自引:0,他引:18
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The amino acid composition of twice recrystallized pepsin (Worthington Biochemical Corporation) has been determined chromatographically on columns of Amberlite IR 120 resin. The results of the analyses obtained on four different preparations indicate a close agreement in their amino acid composition. Pepsin is unique in that it has a great predominance of acidic amino acids over basic ones. Moreover, all the preparations contain a small and constant amount of hydroxyproline, corresponding to about 0.1 residue per molecule. 相似文献
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The amino acid composition of algal cell walls 总被引:2,自引:0,他引:2
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The amino acid composition of T3 bacteriophage 总被引:78,自引:0,他引:78
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Lactate dehydrogenase from germinating soya plants was prepared in an electrophoretically homogeneous form by affinity chromatography on AMP-Sepharose. 相似文献
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The purification and amino acid composition of bovine rhodopsin 总被引:6,自引:0,他引:6
J E Shields E C Dinovo R A Henriksen R L Kimbel P G Millar 《Biochimica et biophysica acta》1967,147(2):238-251
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Some of the properties and the amino acid compositions of the histones of calf thymus, calf liver, fowl erythrocytes, and of a protamine-like material isolated from rooster sperm were described. The amino acid compositions of the histones were rather similar except that no methionine was found in the fowl erythrocyte histone. In the fowl, histones are found in the somatic chromosomes and protamines are found in the sperm chromosomes. This shows that great variations in chromosome composition can exist in an organism. Histone is digested by pepsin both when isolated and when in the chromosome. 相似文献