The Combination of Edestin with Hydrochloric Acid
نویسنده
چکیده
Electromotive force measurements of cells without liquid junction, of the type Ag, AgCl, HCl + protein, H(2), lead to the conclusion that 1 gm. of edestin (or, more probably, edestan) combines with a maximum of 13.4 x 10(-4) equivalents of H(+) and 3.9 x 10(-4) equivalents of Cl(-), when the protein is dissolved in 0.1 M HCl.
منابع مشابه
The Combination of Certain Proteins with Hydrochloric Acid
Electromotive force measurements of cells without liquid junction, of the type Ag, AgCl, HCl + protein, H(2), have been made at 30 degrees C. with the proteins gelatin, edestin, and casein in 0.1 M hydrochloric acid. The data are consistent with the assumptions of a constant combining capacity of each protein for hydrogen ion, no combination with chloride ion, and Failey's principle of a linear...
متن کاملThe Ionization of Protein Chlorides
1. By the use of the silver-silver chloride electrode, measurements have been made of the chloride ion concentrations of 1 per cent solutions of five proteins, containing from 0.001 N to 0.1 N hydrochloric acid. The hydrogen ion concentrations of the same solutions have been measured by the use of the hydrogen electrode. 2. The measurements indicate that the chlorides of gelatin, egg albumin, c...
متن کاملThe Effect of Various Acids on the Digestion of Proteins by Pepsin
1. At equal hydrogen ion concentration the rate of pepsin digestion of gelatin, egg albumin, blood albumin, casein, and edestin is the same in solutions of hydrochloric, nitric, sulfuric, oxalic, citric, and phosphoric acids. Acetic acid diminishes the rate of digestion of all the proteins except gelatin. 2. There is no evidence of antagonistic salt action in the effect of acids on the pepsin d...
متن کاملThe Distribution of the Sulfur in Casein, Lactalbumin, Edestin, and Papain*
Methods for the determination of cystine, cysteine, methioninc, and sulfate in proteins have been discussed in recent publicat,ions (1-3). A system of analysis has been developed in which each of these constituents is determined by at least two independent methods. In this paper, a comparison of the results obtained by the various methods and some experiments on the effect of the conditions of ...
متن کاملAmino acid composition of seed globulins.
Several years ago it was suggested that the crystalline globulins of the seeds of some of the Cucurbitaceae might provide a substitute for edestin for many types of work because of the doubtful availability of hemp-seed for future investigations (I, 2). With the use of the recently developed microbiological methods for amino acid analysis, it is now possible to extend our knowledge of the compo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- The Journal of General Physiology
دوره 14 شماره
صفحات -
تاریخ انتشار 2003