NCIt definition : Human RRM2B wild-type allele is located in the vicinity of 8q23.1 and is approximately
35 kb in length. This allele, which encodes ribonucleoside-diphosphate reductase subunit
M2 B protein, is involved in generation of deoxyribonucleoside diphosphates. Mutations
in this gene have been associated with autosomal recessive mitochondrial DNA depletion
syndrome, autosomal dominant progressive external ophthalmoplegia-5, and mitochondrial
neurogastrointestinal encephalopathy.;