Deletion and Complementation Analysis of the Biotin Gene Cluster of Escherichia coli
AUTOR(ES)
Cleary, Paul P.
RESUMO
Genetic deletions that terminate within the cluster of genes needed for biotin biosynthesis in Escherichia coli have been isolated and mapped by transduction with phages lambda and P1. These deletions order the point mutations in each of the five genes. Mutations causing biotin dependence were incorporated into λpbio transducing phages. New bio− mutations were induced by exposure of λpbio particles to ultraviolet light. Tests of complementation between such bio−pbio particles and bio− mutant cells divide the bio− mutations into five cistrons: bioA, bioB, bioF, bioC, and bioD. Certain bioA and bioF mutations exhibit intragenic complementation, suggesting that these genes determine enzymes composed of identical subunits.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=251493Documentos Relacionados
- Location of Promoter and Operator Sites in the Biotin Gene Cluster of Escherichia coli
- Complementation analysis and deletion mapping of Escherichia coli mutants defective in chemotaxis.
- A Deletion Mutation Placing the Galactokinase Gene of Escherichia coli under Control of the Biotin Promoter
- Fine-structure mapping and complementation analysis of the Escherichia coli cysB gene.
- Fine-structure deletion map and complementation analysis of the glnA-glnL-glnG region in Escherichia coli.
