| Literature DB >> 18113916 |
Abstract
The isolation and characterization of a type-specific M protein from pneumococcus are described. This protein is similar chemically in all respects studied to the M proteins of group A streptococci. No immunological crossreactions have been observed, however, between M proteins of the two species. Strains of capsular type I pneumococcus have been encountered which contain different M proteins. The same is true for capsular type II pneumococcus. It is apparent, therefore, that the capsular polysaccharides and M proteins can vary independently of each other.Entities:
Keywords: PNEUMOCOCCI; PROTEINS
Mesh:
Substances:
Year: 1949 PMID: 18113916 PMCID: PMC2135873 DOI: 10.1084/jem.89.4.439
Source DB: PubMed Journal: J Exp Med ISSN: 0022-1007 Impact factor: 14.307