def: "A pyrimidine rich sequence near the 3' end of an intron to which the 5'end becomes covalently bound during nuclear splicing. The resulting structure resembles a lariat." [SO:ke]
synonym: "branch point" EXACT 
synonym: "branch site" EXACT 
synonym: "branch_point" EXACT 
is_a: SO:0000841 ! spliceosomal_intron_region
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This term is used by the following projects: Royal Society of Chemistry - project prospect.
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