The penicillin-binding site in the exocellular DD-carboxypeptidase-transpeptidase of Actinomadura R39Duez, Colette ; Joris, Bernard ; Frère, Jean-Marie et alin Biochemical Journal (1981), 193 Heat denaturation and Pronase degradation of the complex previously formed between benzylpenicillin and the exocellular DD-carboxypeptidase-transpeptidase of Actinomadura R39 yields a heptapeptide H-Leu ... [more ▼] Heat denaturation and Pronase degradation of the complex previously formed between benzylpenicillin and the exocellular DD-carboxypeptidase-transpeptidase of Actinomadura R39 yields a heptapeptide H-Leu-Pro-Ala-Ser-Asn-Gly-Val-OH, where the benzylpenicilloyl group is ester-linked to the serine residue. This linkage is very labile and its hydrolysis causes the release of benzylpenicilloate. In contrast, the native benzylpenicilloyl-enzyme complex is very stable (half-life 70h at 370C) and its breakdown proceeds via fragmentation of the bound benzylpenicilloyl group [Fuad, Frere, Ghuysen, Duez & Iwatsubo (1976) Biochem. J. 155, 623-6291. [less ▲] Detailed reference viewed: 7 (3 ULg) The exocellular DD-carboxypeptidase of Streptomyces albus G: A metallo (Zn2+) enzyme; Joris, Bernard ; Frère, Jean-Marie et alin FEBS Letters (1980), 117(1-2), 215-218 Detailed reference viewed: 9 (0 ULg) On the Active Centers of Serine and Zn II DD-carboxyppetidasesCharlier, Paulette ; Coyette, Jacques ; et alin Gregory, G.I. (Ed.) Recent advances in the Chemistry of beta-lactam antibiotics (1980) Detailed reference viewed: 6 (1 ULg) Parvalbumins from the lungfish (Protopterus dolloi).Gerday, Charles ; Joris, Bernard ; Gerardin, Nicole et alin Biochimie (1979), 61 Five parvalbumins have been isolated from the white muscles of the lungfish. They can be divided into two sub families showing typical amino acid compositions, C-terminal amino acid residues, peptide maps ... [more ▼] Five parvalbumins have been isolated from the white muscles of the lungfish. They can be divided into two sub families showing typical amino acid compositions, C-terminal amino acid residues, peptide maps and immuno-reactivity. The red muscles including the cardiac muscle also contain parvalbumins in amounts roughly inversely related to the concentration of myoglobin in the muscle. Parvalbumins have also been detected in the brain and kidney. [less ▲] Detailed reference viewed: 1 (0 ULg) |
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