deoxynucleotide set chain terminator polyphsophate nucleotides reversible terminator nucleotides phosphate modifed nucleotides dideoxynucleotide acyATP NTP set terminator ddNTP set polyphosphate nucleotides sugar modified nucletides click chemistry dye labeled nucleoside triphosphates nonnucleside triphosphate UTP biotin labeled nucleoside triphosphate AcyNTPs dye labeled nucleoside triphosphate Dye labeled nucleotides aminomodified nucleotides Biotin labeled nucleotide Sugar modified ribonucleotides deoxynucleotide 3 prime modifed nucleotides phosphate modified nucleotide ribonucleoside triphosphate set ATP dNTP set based modified ribonucleotide CTP 3 prime block nucleotides acyGTP acyTTP GTP base modified deoxynucleotides alkynyl modified triphosphate phosphate modifed nucleotide Dye labeled nucleotide