passages.id: split_5_test_2655_passage
passages.type: progene_text
passages.text: As part of a strategy to identify all genes expressed in human EC , a full - length cDNA encoding a potential secreted protein harboring 10 epidermal growth factor ( EGF ) - like domains and one CUB domain at the carboxyl terminus ( termed , SCUBE1 for Signal peptide - CUB-EGF - like domain containing protein 1 ) was identified .