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Page 151 text:
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'wsnillllllllil i fl 'l11'!!1!'.l..i:i,s it I lltllir 1 l ll 'lllgl WSE ll , ' gwglllrzl in .limlllliiti . l1LH..lE'1iIvwm1lll1 e I , llllllllll if ,l -. . filth: 1 W,,,,c - 'N , ll ll l E E uname sm 1 'll ll' f 1 Hull' Inu ,sf .k FX x5 ,ii .. THE ONTOGENY OF SOLUBLE LENS PROTEINS The soluble lens proteins were studied using biochemical electrophoretic and immunological techniques. The problem of lens differentiation was studied in several parts as follows: lj Qualitative and quantitative changes in crystallin composition during development. 25 Nuclear and cortical differences in protein composi- tion during development. 3D Embryonic proteins Cwith gamma crystallin mobilityl were identified by starch gel electrophoresis in lenses of several species. The gamma crystallins of the beef lens were eluted from starch gel and studied immunologically. 45 The characterization of protein composition in the lens epithelial cell. , 5D Changes in LDH activity during lens aging, and nu- clear and cortical differences. 65 LDI-I isozyme activity in the lens epithelial cell. Larry H. Bernstein Harry Maisel, M.D. 149
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Page 150 text:
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AN ELECTRON MICROSCOPIC STUDY OF PROTEIN SYNTHESIS IN THE NUCLEUS AND CORTEX OF THE DEVELOPING LENS Studies of the bovine lens soluble proteins have shown a marked and progressive decrease with age of gamma crys- tallin in the cortical lens fibers which is associated with lens fiber cell differentiation. The following study seeks to pro- vide morphological correlations which may be associated with the biochemical findings. ID A specific anti-gamma crystallin serum was obtained from rabbits immunized with purified lens antigen, and characterized using purified gamma crystallin extracts, lens extract and an anti-whole lens serum control. ZD Preliminary electron microscopic studies were carried out on the structure of cortical and nuclear lens fiber cells. 35 Preliminary correlations were obtained using an im- munofluorescent technique, and light and phase contrast microscopy. 43 Conjugation of antibodies to gamma crystallin with ferritin provides an immunoelectron microscopic method for the localization of the antigen. Larry H. Bernstein lVIaurice H. Bernstein, Ph.D Harry Maisel, M.D. 148
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Page 152 text:
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-' v al J 4' ..4, v. 'P J - , 2 S wif f 1' I ,fp ,f t E415 vw. 3.2 150 -xy 5 First study of Robert Koch C1843-19109. l f
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