| Literature DB >> 19871092 |
Abstract
A new factor essential for the growth of hemolytic streptococci of Lancefield's group A has been demonstrated. It has not been possible to identify this factor with any other known growth factor. The active substance occurred in liver as a water-soluble, alcohol-insoluble, non-dialyzable material. It could be rendered dialyzable by treatment in strong alcohol with HCl, but not by many less drastic procedures. The most active concentrates prepared gave a maximal effect when approximately 10 gamma per cc. were added.Entities:
Year: 1941 PMID： 19871092 PMCID： PMC2135140 DOI： 10.1084/jem.73.4.487
Source DB: PubMed Journal: J Exp Med ISSN： 0022-1007 Impact factor: 14.307