The invention provides methods, kits, and compositions for ligation of PNA-DNA chimeric probes and oligonucleotides when they are hybridized adjacently to template nucleic acids using ligases and ligation reagents. Structural requirements of the chimeras for ligation include 5 to 15 contiguous PNA monomer...http://www.google.com.au/patents/US6469151?utm_source=gb-gplus-sharePatent US6469151 - PNA-DNA chimeric probe arrays and methods of use
