| id | GO:0071006 Detailed information
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| name | U2-type catalytic step 1 spliceosome
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| namespace | cellular_component
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| def | "A spliceosomal complex that is formed by the displacement of the U1 and U4 snRNPs from the precatalytic spliceosome; the U2, U5 and U6 snRNPs remain associated with the mRNA. This complex, sometimes called the activated spliceosome, is the catalytically active form of the spliceosome, and includes many proteins in addition to those found in the U2, and U5 and U6 snRNPs." [GOC:ab, GOC:krc, GOC:mah, ISBN:0879695897, ISBN:0879697393, PMID:18322460, PMID:19239890]
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| synonym | "GT-AG catalytic step 1 spliceosome" NARROW [GOC:krc, GOC:mah]
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| synonym | "major catalytic step 1 spliceosome" EXACT [GOC:krc, GOC:mah]
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| synonym | "mammalian U2-type spliceosomal complex B*" NARROW [GOC:ab, GOC:krc, GOC:mah, ISBN:0879695897, ISBN:0879697393, PMID:19239890]
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| synonym | "mammalian U2-type spliceosomal complex B2" NARROW [GOC:krc, GOC:mah, ISBN:0879695897, ISBN:0879697393]
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| synonym | "U2-type activated spliceosome" EXACT [GOC:krc, ISBN:0879695897, ISBN:0879697393]
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| synonym | "yeast U2-type spliceosomal complex A1" NARROW [GOC:krc, GOC:mah, ISBN:0879695897, ISBN:0879697393]
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| is_a | GO:0005684 ! U2-type spliceosomal complex
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| is_a | GO:0071012 ! catalytic step 1 spliceosome
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| relationship | has_part GO:0005686 ! U2 snRNP
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| relationship | has_part GO:0005688 ! U6 snRNP
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| created_by | midori
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| creation_date | 2009-07-30T12:00:35Z
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