EOG8003ZP GO:0016905 2/86 myosin heavy chain kinase activity molecular_function "Catalysis of the reaction: ATP + myosin-heavy-chain = ADP + myosin-heavy-chain phosphate." [EC:2.7.11.7] EOG8003ZP GO:0007030 1/86 Golgi organization biological_process "A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of the Golgi apparatus." [GOC:dph, GOC:jl, GOC:mah] EOG8003ZP GO:0005829 1/86 cytosol cellular_component "The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes." [GOC:hjd, GOC:jl] EOG8003ZP GO:0000398 1/86 mRNA splicing, via spliceosome biological_process "The joining together of exons from one or more primary transcripts of messenger RNA (mRNA) and the excision of intron sequences, via a spliceosomal mechanism, so that mRNA consisting only of the joined exons is produced." [GOC:krc, ISBN:0198506732, ISBN:0879695897] EOG8003ZP GO:0071013 1/86 catalytic step 2 spliceosome cellular_component "A spliceosomal complex that contains three snRNPs, including U5, 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 associated snRNPs." [GOC:ab, GOC:krc, GOC:mah, ISBN:0879695897, ISBN:0879697393, PMID:18322460, PMID:19239890] EOG8003ZP GO:0009306 1/86 protein secretion biological_process "The controlled release of proteins from a cell." [GOC:ai] EOG8003ZP GO:0071011 1/86 precatalytic spliceosome cellular_component "A spliceosomal complex that is formed by the recruitment of a preassembled U5-containing tri-snRNP to the prespliceosome. Although all 5 snRNPs are present, the precatalytic spliceosome is catalytically inactive. The precatalytic spliceosome includes many proteins in addition to those found in the associated snRNPs." [GOC:ab, GOC:krc, GOC:mah, PMID:18322460, PMID:19239890]