424 CHEMISTRY OF THE PROTEIDS CHAP, ix 



the spermatozoa of the carp, by Kossel and Dakin. 1 Protamins have 

 further been found in the spermatozoa of the trout 2 (Salmo fario), the 

 pike 3 (Esox lucius), and of Coregonus oxyrhynchus 2 and Silurus glanis? 



The tuberculosamin which Ruppel 4 has isolated from the tubercle 

 bacillus seems to possess the properties of a protamin. It occurs in 

 the bacilli in combination with a nucleic acid. Whether the sulphur- 

 free albumins which Nencki found in putrefactive 5 bacteria and in 

 anthrax bacilli 6 belong to the protamins is not known. 



Protamin nucleinate has been investigated from the micro-chemical 

 and micro-structural points of view by Berg. 7 



1 A. Kossel and H. D. Dakin, Zeitschr. f. physiol. Chem. 4O. 565 (1903). 



2 A. Kossel, ibid. 22. 176 (1896). 



3 D. Kurajeff, ibid. 32. 197 (1901). 



4 W. G. Ruppel, ibid. 26. 218 (1898). 



5 M. Neucki and F. Schaffer, Journ. f. prakt. Chem. (2) 20. 443 (1879). 



6 M. Nencki, Ber. d. deutsch. chem. Ges. 17. 2605 (1884). 



7 Walther Berg, Arch. f. mik. Anat. 65. 298 (1904). 



