This gene encodes one of two non-identical subunits for ribonucleotide reductase. This reductase catalyzes the formation of deoxyribonucleotides from ribonucleotides. Synthesis of the encoded protein (M2) is regulated in a cell-cycle dependent fashion. Transcription from this gene can initiate from alternative promoters, which results in two isoforms that differ in the lengths of their N-termini. Related pseudogenes have been identified on chromosomes 1 and X.
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Western blot analysis of extracts on different cells, using RRM2 Mouse Monoclonal Antibody (EAB22256) at 1:1000 dilution. Secondary antibody Goat Anti-Mouse IgG (H&L)-HRP (EAB21001) at 1:5000 dilution. Lane1: Hela Lane2: MCF7