Term Name:	generation of mature 5'-end of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA)
Synonyms:	processing at C1
Definition:	Cleavage within ITS2 to generate the mature 5'-end of an LSU-rRNA derived from a tricistronic rRNA transcript that contained the Small SubUnit (SSU) rRNA, the 5.8S rRNA, and the Large SubUnit (LSU) rRNA, in that order, from 5' to 3' along the primary transcript.
Ontology:	GO: Biological Process [GO:0000477]    QuickGO    AmiGO