passages.id: split_6_test_1669_passage
passages.type: progene_text
passages.text: As occurs in corynebacteria , the presence of a ribosome - binding site within the ask sequence suggests that this ORF encodes two overlapping proteins , Askalpha of 421 aa and M(r) 44108 , and Askbeta of 172 aa and M(r) 18145 .