prespliceosome
A spliceosomal complex that is formed by association of the 5' splice site and the branch point sequence with specific snRNPs. The prespliceosome includes many proteins in addition to those found in the bound snRNPs. Commitment to a given pair of 5' and 3' splice sites occurs at the time of prespliceosome formation. Prespliceosome complexes are not active for splicing, but are instead an early step in the assembly of a spliceosomal complex.
GO:0005681
spliceosomal complex
is_a
mammalian spliceosomal complex A
narrow
prespliceosomal complex
exact
yeast spliceosomal complex B
narrow
SPBC11G11.06c SPBC21C3.05 SPBC8D2.09c SPAC27F1.09c SPBC4B4.09 SPAC27D7.07c SPCC16A11.13 SPBC36.09 SPBC19C2.14 SPAC13C5.02 SPBC23E6.01c SPBC3E7.13c SPBC839.10 SPAC4D7.13 SPBC31F10.11c SPBC1861.08c SPBC146.07 SPBC4B4.07c SPCC962.06c SPAP8A3.06 SPAC22A12.09c SPAC31G5.01 SPCC10H11.01 SPAPJ698.03c SPCC285.12 SPBC211.02c SPBC4B4.05 SPAC22F8.10c SPAC26A3.08 SPAC2C4.03c SPAC19A8.13 SPBP35G2.09