abstract |
The invention relates to antibodies from the class of immunoglobulins A, M and E against the peptide subunit pentapeptide L-Ala-D-Glu (L-Lys-D-Ala-D-Ala) of the peptidoglycan in biological test material and against bacterial containing these peptidoglycans Cell walls characterized by a) specific binding to pentapeptides of the general formula R-A1-D-Ala (I) in which R is an amino acid component with 1-3, preferably 3 amino acids from the group Gly, L-Ala, D-Glu, L-lys and A1 is one of the amino acids D-Ala, D-Ser, D-Val or D-Leu, or b) specific binding to isolated bacterial cell walls containing pentapeptides of the general formula I or c) specific binding to gram-positive containing pentapeptides of the general formula I. Bacteria, processes for their preparation, processes for their quantitative determination and reagent. |