U12-type catalytic step 2 spliceosome
A spliceosomal complex that contains the U12, U5 and U6atac snRNPs bound to a splicing intermediate in which the first catalytic cleavage of the 5' splice site has occurred. The precise subunit composition differs significantly from that of the catalytic step 1, or activated, spliceosome, and includes many proteins in addition to those found in the U12, U5 and U6atac snRNPs.
GO:0005689
U12-type spliceosomal complex
is_a
GO:0071013
catalytic step 2 spliceosome
is_a
AT-AC catalytic step 2 spliceosome
narrow
mammalian U12-type spliceosomal complex C
narrow
mammalian U12-type spliceosomal complex C1
narrow
minor catalytic step 2 spliceosome
exact
yeast U12-type spliceosomal complex A2-2
narrow