Based on the SEQUEST from database of E.coli host and target protein, the LC-MS/MS Analysis result of CCAAT/enhancer-binding protein delta could indicate that this peptide derived from E.coli-expressed Homo sapiens (Human) CEBPD.
Supplier Page from United States Biological for CCAAT/enhancer-binding Protein Delta, Recombinant, Human, aa2-269, His-Tag, Myc-Tag