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http://purl.uniprot.org/citations/15850757http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/15850757http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/15850757http://www.w3.org/2000/01/rdf-schema#comment"The complete sequence and subsequent annotation of the Mycobacterium tuberculosis genome has allowed the prediction of many genes and gene functions by homology. HemZ is a predicted ferrochelatase which lies in an apparent operon with two genes involved in mycolic acid biosynthesis, mabA and inhA. We tried to construct hemZ deletion mutants in M. tuberculosis using a two-step recombination strategy, but could only delete the chromosomal copy when we provided a second functional copy on an integrating plasmid. We further confirmed that hemZ is essential under normal culture conditions by demonstrating that the integrated copy of hemZ could not be removed if it was the only wild-type allele in the cell. We were able to obtain hemZ mutants by supplementation with hemin but not with protoporphyrin IX or hemoglobin confirming that this gene does have a role in heme biosynthesis and that M. tuberculosis can transport hemin intracelullarly. The hemin auxotroph required 2 mug/ml hemin for growth and rapid loss of viability occurred after withdrawal of hemin. These data confirm the role of hemZ in heme biosynthesis and indicate that heme is an essential requirement for M. tuberculosis."xsd:string
http://purl.uniprot.org/citations/15850757http://purl.org/dc/terms/identifier"doi:10.1016/j.tube.2005.01.002"xsd:string
http://purl.uniprot.org/citations/15850757http://purl.org/dc/terms/identifier"doi:10.1016/j.tube.2005.01.002"xsd:string
http://purl.uniprot.org/citations/15850757http://purl.uniprot.org/core/author"Schaeffer M."xsd:string
http://purl.uniprot.org/citations/15850757http://purl.uniprot.org/core/author"Schaeffer M."xsd:string
http://purl.uniprot.org/citations/15850757http://purl.uniprot.org/core/author"Parish T."xsd:string
http://purl.uniprot.org/citations/15850757http://purl.uniprot.org/core/author"Parish T."xsd:string
http://purl.uniprot.org/citations/15850757http://purl.uniprot.org/core/author"Duncan K."xsd:string
http://purl.uniprot.org/citations/15850757http://purl.uniprot.org/core/author"Duncan K."xsd:string
http://purl.uniprot.org/citations/15850757http://purl.uniprot.org/core/author"Roberts G."xsd:string
http://purl.uniprot.org/citations/15850757http://purl.uniprot.org/core/author"Roberts G."xsd:string
http://purl.uniprot.org/citations/15850757http://purl.uniprot.org/core/date"2005"xsd:gYear
http://purl.uniprot.org/citations/15850757http://purl.uniprot.org/core/date"2005"xsd:gYear
http://purl.uniprot.org/citations/15850757http://purl.uniprot.org/core/name"Tuberculosis"xsd:string
http://purl.uniprot.org/citations/15850757http://purl.uniprot.org/core/name"Tuberculosis"xsd:string
http://purl.uniprot.org/citations/15850757http://purl.uniprot.org/core/pages"197-204"xsd:string
http://purl.uniprot.org/citations/15850757http://purl.uniprot.org/core/pages"197-204"xsd:string
http://purl.uniprot.org/citations/15850757http://purl.uniprot.org/core/title"HemZ is essential for heme biosynthesis in Mycobacterium tuberculosis."xsd:string
http://purl.uniprot.org/citations/15850757http://purl.uniprot.org/core/title"HemZ is essential for heme biosynthesis in Mycobacterium tuberculosis."xsd:string
http://purl.uniprot.org/citations/15850757http://purl.uniprot.org/core/volume"85"xsd:string
http://purl.uniprot.org/citations/15850757http://purl.uniprot.org/core/volume"85"xsd:string
http://purl.uniprot.org/citations/15850757http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/15850757
http://purl.uniprot.org/citations/15850757http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/15850757