... adenosine 5¢-tetraphosphateTheir chemical synthesis and recognition by human and plantmononucleoside tetraphosphatases and dinucleosidetetraphosphatasesAndrzej Guranowski1,El_zbieta Starzyn´ska1, ... from human and the narrow-leafedlupin. ppCH2ppA and pCH2pppA, inhibited the human enzyme with Kival-ues of 1.6 and 2.3 nm, respectively, and the lupin enzyme with Kivalues of30 and 34 ... 5¢-tetraphos-phate synthesis from ATP and ADP. Biochim BiophysActa 869, 107–111.18 Randerath K, Janeway CM, Stephenson ML & Zamec-nik PC (1966) Isolation and characterization of dinu-cleoside tetra- and...