A 12 or 23 nucleotide spacer between the 3'D-HEPTAMER and 3'D-NONAMER of a 3'D-RS. [ http://www.imgt.org/cgi-bin/IMGTlect.jv?query=7# ]
A 12 or 23 nucleotide spacer between the 3'D-HEPTAMER and 3'D-NONAMER of a 3'D-RS. [ http://www.imgt.org/cgi-bin/IMGTlect.jv?query=7# ]