12 or 23 nucleotide spacer between the 5' D-heptamer (SO:0000496) and 5' D-nonamer (SO:0000497) of a 5' D-recombination signal sequence (SO:0000556) of an immunoglobulin/T-cell receptor gene. [ http://www.imgt.org/cgi-bin/IMGTlect.jv?query=7# ]
术语信息
definition
12 or 23 nucleotide spacer between the 5' D-heptamer (SO:0000496) and 5' D-nonamer (SO:0000497) of a 5' D-recombination signal sequence (SO:0000556) of an immunoglobulin/T-cell receptor gene.