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The information deduced from the genome sequence of Mycobacterium leprae is of immense value for the chemotherapy of leprosy. Knowing the complete set of genes, enzymes and proteins allows us to understand why some drugs are without effect whereas others a ...
Introduction: Corrinoids are an essential cofactor of reductive dehalogenases, the key enzymes of organohalide respiration (OHR). Dehalobacter restrictus strain PER-K23 is an obligate OHR bacterium able to conserve energy with tetrachloroethene, but is una ...
The melanization reaction is a rapid and important immune mechanism in arthropods. It results in the production of melanin at the site of injury and around invading microbes. The enzymes responsible for melanogenesis are phenoloxidases (PO), which catalyze ...
The diversification of immune systems during evolution involves the expansion of particular gene families in given phyla. A better understanding of the metazoan immune system requires an analysis of the logic underlying such immune gene amplification. This ...
A continuous 75627 bp segment of the Mycobacterium leprae chromosome spanning the oriC region was sequenced. The gene order at this locus was similar to that found in the replication origin region of many other prokaryotes, particularly Mycobacterium tuber ...
The terminal differentiation of melanocytes is associated with the transcriptional activation of genes responsible for pigment production such as tyrosinase. Pigment cell-specific transcription factors, such as Mitf, as well as specific proximal and distal ...
Simian Virus 40 (SV40) chromosomes were incubated with a concentrated extract of HeLa cells containing RNA polymerase II and other factors involved in transcription. SV40-specific RNA was synthesized. In the absence of HeLa cell extract the synthesis of la ...
