three_prime_D_spacer
A 12 or 23 nucleotide spacer between the 3'D-HEPTAMER and 3'D-NONAMER of a 3'D-RS.
SO:0000563
vertebrate_immune_system_gene_recombination_spacer
is_a
SO:0000570
three_prime_D_recombination_signal_sequence
part_of
3'D-SPACER
exact
three prime D spacer
exact