6.5.1.3 dATP + (ribonucleotide)n + (ribonucleotide)m acts on single-stranded or double-stranded DNA molecules. Acts on very small pieces of ribonucleic acid, with 40mers being the probable upper size limit. The minimum size of the 5'-moiety is a ribonucleoside 3',5'-bisphosphate Tequatrovirus T4 dAMP + phosphate + (ribonucleotide)n+m - ? 814 6.5.1.3 dATP + (ribonucleotide)n + (ribonucleotide)m - Leishmania tarentolae UC dAMP + phosphate + (ribonucleotide)n+m - ? 814 6.5.1.3 GTP + ATP - Tequatrovirus T4 P1-(5'-adenosyl),P4-(5'-guanosyl) tetraphosphate + diphosphate - ? 369207 6.5.1.3 ITP + (ribonucleotide)n + (ribonucleotide)m - Tequatrovirus T4 IMP + phosphate + (ribonucleotide)n+m - ? 817 6.5.1.3 additional information joins single-stranded DNA molecules much less efficiently. Many of them approximate a well-defined consensus sequence Tequatrovirus T4 ? - ? 89 6.5.1.3 additional information RNA-stimulated exchange reaction between ATP and diphosphate Triticum aestivum ? - ? 89 6.5.1.3 additional information efficient ligation of single-stranded DNAs and RNAs Tequatrovirus T4 ? - ? 89 6.5.1.3 additional information synthesizes circular hammerhead ribozymes from oligonucleotides, small RNA molecules resistant to circuarization by other means can be efficiently circularized on a preparative scale using a suitable DNA template Tequatrovirus T4 ? - ? 89 6.5.1.3 additional information no activity with alendronate nor pamidronate Tequatrovirus T4 ? - ? 89 6.5.1.3 additional information the group I intron from cyanobacterium Anabaena sp. catalyzes phosphodiester bond formation using a triphosphate on the 5'-terminal nucleotide, much like protein polymerases and engineered ribozymes. In the process, this ribozyme forms a unique circular RNA that incorporates the exogenous guanosine cofactor added during self-splicing Anabaena sp. ? - ? 89