Fragmentation of penicillin catalysed by the exocellular DD-carboxypeptidase-transpeptidase of Streptomyces strain r61. Isotopic study of hydrogen fixation on carbon 6.
1978
J M Frère, and
J M Ghuysen, and
J de Graeve
UI
MeSH Term
Description
Entries
D007700
Kinetics
The rate dynamics in chemical or physical systems.
D010406
Penicillins
A group of antibiotics that contain 6-aminopenicillanic acid with a side chain attached to the 6-amino group. The penicillin nucleus is the chief structural requirement for biological activity. The side-chain structure determines many of the antibacterial and pharmacological characteristics. (Goodman and Gilman's The Pharmacological Basis of Therapeutics, 8th ed, p1065)
Enzymes that act at a free C-terminus of a polypeptide to liberate a single amino acid residue.
Carboxypeptidase
D002384
Catalysis
The facilitation of a chemical reaction by material (catalyst) that is not consumed by the reaction.
Catalyses
D003903
Deuterium
The stable isotope of hydrogen. It has one neutron and one proton in the nucleus.
Deuterons,Hydrogen-2,Hydrogen 2
D006859
Hydrogen
The first chemical element in the periodic table with atomic symbol H, and atomic number 1. Protium (atomic weight 1) is by far the most common hydrogen isotope. Hydrogen also exists as the stable isotope DEUTERIUM (atomic weight 2) and the radioactive isotope TRITIUM (atomic weight 3). Hydrogen forms into a diatomic molecule at room temperature and appears as a highly flammable colorless and odorless gas.
Protium,Hydrogen-1
D013302
Streptomyces
A genus of bacteria that form a nonfragmented aerial mycelium. Many species have been identified with some being pathogenic. This genus is responsible for producing a majority of the ANTI-BACTERIAL AGENTS of practical value.