|
4
|
Ren XF, Konaklieva MI, Shi H, Dickey S, Lim DV, Gonzalez J, Turos E. Studies on Nonconventionally Fused Bicyclic β-Lactams. J Org Chem 1998. [DOI: 10.1021/jo9811219] [Citation(s) in RCA: 77] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiao-Feng Ren
- Department of Chemistry, State University of New York at Buffalo, Buffalo, New York 14260, Department of Biology, University of South Florida, Tampa, Florida 33620, Departamento de Quimica Organica e Inorganica, Universidad de Oviedo, 33071-Oviedo, Spain, and Department of Chemistry, University of South Florida, Tampa, Florida 33620
| | - Monika I. Konaklieva
- Department of Chemistry, State University of New York at Buffalo, Buffalo, New York 14260, Department of Biology, University of South Florida, Tampa, Florida 33620, Departamento de Quimica Organica e Inorganica, Universidad de Oviedo, 33071-Oviedo, Spain, and Department of Chemistry, University of South Florida, Tampa, Florida 33620
| | - Hongchang Shi
- Department of Chemistry, State University of New York at Buffalo, Buffalo, New York 14260, Department of Biology, University of South Florida, Tampa, Florida 33620, Departamento de Quimica Organica e Inorganica, Universidad de Oviedo, 33071-Oviedo, Spain, and Department of Chemistry, University of South Florida, Tampa, Florida 33620
| | - Sonja Dickey
- Department of Chemistry, State University of New York at Buffalo, Buffalo, New York 14260, Department of Biology, University of South Florida, Tampa, Florida 33620, Departamento de Quimica Organica e Inorganica, Universidad de Oviedo, 33071-Oviedo, Spain, and Department of Chemistry, University of South Florida, Tampa, Florida 33620
| | - Daniel V. Lim
- Department of Chemistry, State University of New York at Buffalo, Buffalo, New York 14260, Department of Biology, University of South Florida, Tampa, Florida 33620, Departamento de Quimica Organica e Inorganica, Universidad de Oviedo, 33071-Oviedo, Spain, and Department of Chemistry, University of South Florida, Tampa, Florida 33620
| | - Javier Gonzalez
- Department of Chemistry, State University of New York at Buffalo, Buffalo, New York 14260, Department of Biology, University of South Florida, Tampa, Florida 33620, Departamento de Quimica Organica e Inorganica, Universidad de Oviedo, 33071-Oviedo, Spain, and Department of Chemistry, University of South Florida, Tampa, Florida 33620
| | - Edward Turos
- Department of Chemistry, State University of New York at Buffalo, Buffalo, New York 14260, Department of Biology, University of South Florida, Tampa, Florida 33620, Departamento de Quimica Organica e Inorganica, Universidad de Oviedo, 33071-Oviedo, Spain, and Department of Chemistry, University of South Florida, Tampa, Florida 33620
| |
Collapse
|
|
8
|
Hollander IJ, Shen YQ, Heim J, Demain AL, Wolfe S. A pure enzyme catalyzing penicillin biosynthesis. Science 1984; 224:610-2. [PMID: 6546810 DOI: 10.1126/science.6546810] [Citation(s) in RCA: 69] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Isopenicillin N synthetase (cyclase) has been purified to homogeneity from Cephalosporium acremonium strain C-10. The enzyme has a molecular weight of 40,000 to 42,000 and yields a single band on sodium dodecyl sulfate-polyacrylamide gel electrophoresis. The enzyme was purified in 10 percent yield by a combination of protamine sulfate and ammonium sulfate precipitations, gel filtration, and ion-exchange high-performance liquid chromatography. The purified enzyme can be stabilized with sucrose and stored at -20 degrees C for several weeks without any loss in activity.
Collapse
|