Isolation and characteristics of Klebsiella pneumoniae lysozyme factor

For the first time the preparation of K. pneumoniae antilysozyme factor has been isolated and purified. This factor, having a molecular weight of about 1,000 daltons, is oligopeptide with an oligosaccharide part. It also contains such amino acids as proline, lysine, arginine and tyrosine. The antilysozyme factor is resistant to 30-minute boiling and has no optimal pH value for its action.