Two contiguous pairs of enantiomeric 2'-deoxy-1-ribonucleotides have been i
ncorporated in a 5-methyl-CG alternating decadeoxyribonucleotide duplex. Da
ta from circular dichroism and UV melting experiments indicate that the two
base-pair long enantio-domain within the duplex was able to stabilize a Z-
DNA-like conformation. (C) 2000 Elsevier Science Ltd. All rights reserved.