EOG847JBK GO:0004748 1/3 ribonucleoside-diphosphate reductase activity, thioredoxin disulfide as acceptor molecular_function "Catalysis of the reaction: 2'-deoxyribonucleoside diphosphate + thioredoxin disulfide + H2O = ribonucleoside diphosphate + thioredoxin. Thioredoxin disulfide is the oxidized form of thioredoxin." [EC:1.17.4.1] EOG847JBK GO:0005971 1/3 ribonucleoside-diphosphate reductase complex cellular_component "An enzyme complex composed of 2-4 or more subunits, which usually contains nonheme iron and requires ATP for catalysis. Catalyzes the formation of 2'-deoxyribonucleoside diphosphate from ribonucleoside diphosphate, using either thioredoxin disulfide or glutaredoxin disulfide as an acceptor." [BRENDA:1.17.4.1] EOG847JBK GO:0006260 1/3 DNA replication biological_process "The cellular metabolic process in which a cell duplicates one or more molecules of DNA. DNA replication begins when specific sequences, known as origins of replication, are recognized and bound by initiation proteins, and ends when the original DNA molecule has been completely duplicated and the copies topologically separated. The unit of replication usually corresponds to the genome of the cell, an organelle, or a virus. The template for replication can either be an existing DNA molecule or RNA." [GOC:mah]