has role has_role has role gene as virulence factor in pathogen has role has_role has role Mycobacterium tuberculosis CDC1551 protein-coding gene of Mycobacterium tuberculosis CDC1551 relA 20140406 83331 925657 Bin Zhao, Oliver He GTP pyrophosphokinase MT2660 NCBI-supplied PMID: 12218036; 19099550 WEB: http://www.ncbi.nlm.nih.gov/gene protein-coding 74 MUTATION: Long-term survival of the relA mutant during in vitro starvation or nutrient run out in normal media was significantly impaired compared to that in the wild type. In addition, the mutant was significantly less able to survive extended anaerobic incubation than the wild-type virulent organism [PMID:10940033]. virulence factor gene role