ID 3.2.2.n1 DE cytokinin riboside 5'-monophosphate phosphoribohydrolase. CA (1) H2O + N(6)-(dimethylallyl)adenosine 5'-phosphate = D-ribose CA 5-phosphate + N(6)-dimethylallyladenine. CA (2) 9-ribosyl-trans-zeatin 5'-phosphate + H2O = D-ribose 5-phosphate + CA trans-zeatin. CC -!- The enzyme, isolated from plants, is involved in the activation of CC cytokinins (such as N(6)-(dimethylallyl)adenine and trans-zeatin) CC plant hormones that are important for meristem activity. DR K3VH30, FCK1_FUSPC ; Q8RUN2, LOG1_ARATH ; Q5BPS0, LOG2_ARATH ; DR Q8L8B8, LOG3_ARATH ; Q9LFH3, LOG4_ARATH ; Q8LBB7, LOG5_ARATH ; DR Q9LYV8, LOG6_ARATH ; Q8GW29, LOG7_ARATH ; Q84MC2, LOG8_ARATH ; DR Q9XH06, LOG9_ARATH ; B2HS63, LOGH_MYCMM ; O05306, LOGH_MYCTU ; DR P48636, LOGH_PSEAE ; P46378, LOGH_RHOFA ; Q8LR50, LOGL1_ORYSJ; DR B9F166, LOGL2_ORYSJ; Q8H7U8, LOGL3_ORYSJ; Q851C7, LOGL4_ORYSJ; DR Q84M85, LOGL5_ORYSJ; Q0JBP5, LOGL6_ORYSJ; Q5TKP8, LOGL7_ORYSJ; DR Q0DFG8, LOGL8_ORYSJ; B7E7M8, LOGL9_ORYSJ; Q7XDB8, LOGLA_ORYSJ; DR Q5ZC82, LOG_ORYSJ ; //