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Table 2 Conserved RNA elements upstream of some B12-regulated genes

From: Engineering a vitamin B12 high-throughput screening system by riboswitch sensor in Sinorhizobium meliloti

Genome abbreviations The start codon Proximal downstream genes Coding of enzyme protein
CBL biosynthesis
 Propionibacterim freudenreichii (PF) 285 cbiB VB12 biosynthesis protein
 Bacillus megaterium(BI) 266 cbiW VB12 biosynthesis protein
 Mesorhizobium loti(MLO) 233 bluB 5,6-dimethylbenzimidazole synthase
 Sinorhizobium meliloti(SM) 251 bluB 5,6-dimethylbenzimidazole synthase
 Sinorhizobium meliloti(SM) 227 cobU adenosylcobinamide kinase
Vitamin B12 transport
 Escherichia coli(EC) 248 btuB VB12 transporter BtuB
 Salmonella typhimurium(SY) 252 btuB VB12 transporter BtuB
B12-dependent or alternative metabolic pathways
 Mesorhizobium loti(MLO) 309 metE 5-methyltetrahydropteroyltriglutamate--homocysteine methyltransferase