>sp|P21640|COBJ_SINSX Precorrin-3B C(17)-methyltransferase OS=Sinorhizobium sp OX=42445 GN=cobJ PE=1 SV=1 MTGTLYVVGTGPGSAKQMTPETAEAVAAAQEFYGYFPYLDRLNLRPDQIRVASDNREELD RAQVALTRAAAGVKVCMVSGGDPGVFAMAAAVCEAIDKGPAEWKSVELVITPGVTAMLAV AARIGAPLGHDFCAISLSDNLKPWEVITRRLRLAAEAGFVIALYNPISKARPWQLGEAFE LLRSVLPASVPVIFGRAAGRPDERIAVMPLGEADANRADMATCVIIGSPETRIVERDGQP DLVYTPRFYAGASQ