five_prime_D_spacer
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.
SO:0000563
vertebrate_immune_system_gene_recombination_spacer
is_a
SO:0000556
five_prime_D_recombination_signal_sequence
part_of
5'-SPACER
exact
five prime D spacer
exact
five prime D-spacer
exact