dimer
both subunits are required for catalytic activity
monomer
1 * 50000, SDS-PAGE
monomer
1 * 78400, SDS-PAGE
monomer or dimer
alpha or alpha2, class II RNRs
monomer or dimer
class II enzymes show a monomeric or dimeric structure
More
structure comparisons of classI-III RNRs, model for the subunit organization of RNRs, overview
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structures of the active holoenzymes of class I-III RNRs, structure comparisons, overview