sequence of DILP INSL1_DROME CG14173 DILP DILP1 Dilp Dilp 1 Drosophila insulin-like peptide 1 IMR:0002842 Ilp1 Insulin-like peptide 1 Insulin-related peptide 1 Probable insulin-like peptide 1 Probable insulin-like peptide 1 A chain Probable insulin-like peptide 1 B chain UniProt:Q9VT50 dILP1 dilp dilp-1 dilp1 molecule_role