passages.id: split_5_test_1907_passage
passages.type: progene_text
passages.text: We report the presence in V. fischeri of ompU , a gene encoding a 32.5 - kDa protein homolog of two other OMPs , OmpU of V. cholerae ( 50.8 % amino acid sequence identity ) and OmpL of Photobacterium profundum ( 45.5 % identity ) .