Abstract
1) The constituting peptides of the protein obtained by dilute sulfuric acid extraction from defatted healthy lung tissues and caseosus lesions, have been studied.
2) On the basis of counter current distribution study of the performic acid oxidized DNP-proteins of the original samples could have separated into several single peptides.
3) Qualitative analysis of the N-terminal residues together with that of constituting amino acids of the individual single peptides, have shown ultimately, that the constituting peptides of the protein of the healthy lungs were : aspartyl, alanyl, and leucyl peptides in contrast to the aspartyl, beta-alanyl, and histidyl peptides from the caseosus focci respectively.
