title: Spectroscopic properties of various 2'(3')-O-aminoacyldinucleoside phosphates analogous to the 3' terminus of AA-tRNA.
abstract: Hypochromicity and circular dichroism data are reported for the 2' and 3'-0-aminiacyldinucleoside phosphates cytidylyl-(3'-5')-2'(3')-0-L-phenylalanyl-adenosine, cytidylyl-(3'-5')-2'-deoxy-3'-0-L-phenylalanyladenosine, cytidylyl-(3'-5')-2'-deoxy-3'-0-glycyladenosine, and cytidylyl-(3'-5')-3'-deoxy-2'-0-L-phenylalanyladenosine, all of which can act as analogs of the 3' terminus of AA-tRNA in various partial reactions of protein biosynthesis. Although all these systems have a 2'-OH group in the furanose of the 3'-residue, differences exist in the extent and/or mode of base-base overlap for most of them, except for cytidylyl-(3'-5')-2'(3')-0-L-phenylalanyladenosine and cytidylyl-(3'-5')-3'-deoxy-2'-0-L-phenylalanyladenosine. It is concluded that the biological activity of the above analogs is affected both by the position of the aminoacyl group and the stacking properties of the bases.
mesh_terms: D000227:Adenine Nucleotides; D000596:Amino Acids; D001483:Base Sequence; D002942:Circular Dichroism; D009690:Nucleic Acid Conformation; D009841:Oligonucleotides; D012343:RNA, Transfer; D013056:Spectrophotometry, Ultraviolet; D013329:Structure-Activity Relationship
chemical_list: D000227:Adenine Nucleotides; D000596:Amino Acids; D009841:Oligonucleotides; D012343:RNA, Transfer