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Title: Proline biosynthesis encoded by the noc and occ loci of Agrobacterium Ti plasmids. Author: Farrand SK, Dessaux Y. Journal: J Bacteriol; 1986 Aug; 167(2):732-4. PubMed ID: 3733675. Abstract: Octopine or nopaline Ti plasmids, or clones encoding their occ or noc loci, allowed proline auxotrophs of Agrobacterium tumefaciens to utilize the appropriate arginyl opine as a proline substitute. Arginine and ornithine substituted for proline only if the occ or noc loci were induced or made constitutive by mutation. These results support a report demonstrating a Ti plasmid-encoded activity in A. tumefaciens which cyclizes ornithine to proline.[Abstract] [Full Text] [Related] [New Search]