passages.id: split_9_validation_186_passage
passages.type: progene_text
passages.text: Seven out of 21 previously uncharacterized ORFs ( YDL031w , YDL070w , YDL084w , YGL150c , YKL078w , YLR276c , and YMR128w ) were identified by systematic gene disruption , to be essential for vegetative growth .