0000000000424356

AUTHOR

Danila Limauro

showing 2 related works from this author

Cloning and characterization of the histidine biosynthetic gene cluster of Streptomyces coelicolor A3(2).

1990

Abstract Biochemical and genetic data indicate that in Streptomyces coelicolor A3(2) the majority of the genes involved in the biosynthesis of histidine are clustered in a small region of the chromosome [Carere et al., Mol. Gen. Genet. 123 (1973) 219–224; Russi et al., Mol. Gen. Genet. 123 (1973) 225–232]. To investigate the structural organization and the regulation of these genes, we have constructed genomic libraries from S. coelicolor A3(2) in pUC vectors. Recombinant clones were isolated by complementation of an Escherichia coli hisBd auxotroph. A recombinant plasmid containing a 3.4-kb fragment of genomic DNA was further characterized. When cloned in the plasmid vector, pIJ699, this f…

GeneticsbiologyBase SequenceOperonStreptomyces coelicolorGenes FungalGenetic Complementation TestMolecular Sequence DataRestriction MappingNucleic acid sequencehisBGeneral MedicineMolecular cloningbiology.organism_classificationMolecular biologyStreptomycesgenomic DNAGene clusterGeneticsEscherichia coliGenomic libraryHistidineAmino Acid SequenceCloning MolecularPlasmidsGene
researchProduct

The Histidinol Phosphate Phosphatase Involved in Histidine Biosynthetic Pathway Is Encoded by SCO5208 (hisN) in Streptomyces coelicolor A3(2)

2008

Through the screening of a Streptomyces coelicolor genomic library, carried out in a histidinol phosphate phosphatase (HolPase) deficient strain, SCO5208 was identified as the last unknown gene involved in histidine biosynthesis. SCO5208 is a phosphatase, and it can restore the growth in minimal medium in this HolPase deficient strain when cloned in a high or low copy number vector. Moreover, it shares sequence homology with other HolPases recently identified in Actinobacteria. During this work a second phosphatase, SCO2771, sharing no homologies with SCO5208 and all so far described phosphatases was identified. It can complement HolPase activity mutation only at high copy number. Sequence …

Sequence analysisPhosphataseDNA Mutational AnalysisMolecular Sequence DataMutation MissenseStreptomyces coelicolormedicine.disease_causeApplied Microbiology and BiotechnologyMicrobiologyBacterial ProteinsHistidinol Phosphate Phosphatase Histidine Biosynthesis Streptomyces coelicolormedicineGenomic libraryHistidineAmino Acid SequenceGeneHistidineGeneticsMutationbiologySequence Homology Amino AcidStreptomyces coelicolorGenetic Complementation TestHistidinol-PhosphataseGeneral Medicinebiology.organism_classificationBiosynthetic PathwaysBiochemistryMutant ProteinsLow copy number
researchProduct