2.1.1.56 - 485461, 485462, 701751 2.1.1.56 by immobilized-metal-affinity chromatography 676231 2.1.1.56 by nickel-affinity chromatography 674439 2.1.1.56 Co-NTA resin column chromatography 757853 2.1.1.56 co-purifies with mRNA-guanylyltransferase 485452, 485464 2.1.1.56 DNA-agarose affinity chromatography 485457, 485460 2.1.1.56 enzyme and truncated mutants recombinant from Saccharomyces cerevisiae 485473 2.1.1.56 from infected HeLa cells 485458 2.1.1.56 His6-Smt3-Abd1 by nickel-nitrilotriacetic acid fast flow column chromatography, Abd1 free of the tag by gel filtration, to homogeneity 674701 2.1.1.56 methyltransferase domain, and small subunit of mRNA capping enzyme, recombinant from E. coli 485467, 485468