Abstract
It is shown that the free amino and free hydroxyl groups of silk fibroin are blocked by treatment with ketene, 1 yielding a modified protein. The study of this ketcnized fibroin will be continued in this laboratory this coming year.
Get full access to this article
View all access options for this article.
References
1.
1. T. B. Johnson. “Ketenized Silk.”
2.
2.
Abderhalden.
Z. physiol. Chem. , 120 , 207 (1922 ).
3.
3.
Meunier
and
Rey.
Compt. rend. , 184 , 285 (1927 ) Czarnetsky and Schmidt, J. Biol. Chem., 105, 301 (1934 ); M. A. Kise. Tex. Rsch., 9, 401 (1935 ).
4.
4.
Harris
and
Jessup.
Am. Dye. Rptr. , 20 , 795 (1931 ); Harris. B. S.J. Rsch., 13, 151 (1934 ).
5.
5.
Abderhalden
and
Brockmann.
Biochemical Z. , 226 , 209 (1930 ).
6.
6.
J. Van Alphen.
Recueil Trav. Chim. , 44 , 838 (1925 ).
7.
7.
Bergmann
and
Stern.
Ber. , 63 , 437 (1930 ).
8.
8.
Herriott
and
Northrup.
J. Gen. Physiology , 18 , 35 (1934 ).
9.
9.
Hurd.
“Organic Syntheses.”
Collective Vol. I , 324 (1932 ).
10.
10.
Rice
et al. J. Am. Chem. Soc. , 56 , 1760 (1934 ).
11.
11.
Harding
and
MacLean.
J. Biol. Chem. , 20 , 226 (1915 ).
12.
12.
Kogl
and
Postomsky.
Ann. , 440 , 34 (1934 ); 459, 266 (1929 ).
13.
13.
Abderhalden
and
Sington.
Z. physiol. Chem. , 61 , 256 (1909 ); Abderhalden and Brossa. Ibid., 62, 129 (1909 ); Abderhalden and Weide, Ibid., 64, 462 (1909 ); Boose. Ibid., 68, 273 (1910 ); Suwa. Ibid., 68, 275 (1910 ).