May have antimicrobial properties, like most ant linear peptides. May have antimicrobial properties, like most ant linear peptides. May have antimicrobial properties, like most ant linear peptides. Expressed by the venom gland. The peptide spanning residues 2 to 19 occurs in 3 forms and has been given 3 different names. U1-PONTX-Dq3a has an amidated Lys-19, U1-PONTX-Dq3c has an amidated Lys-19 and an oxidized Met-18, and U1-PONTX-Dq3b has no modifications at either Met-18 or Lys-19. U1-PONTX-Dq3e. U1-PONTX-Dq3d. U1-PONTX-Dq3a. U1-PONTX-Dq3b. U1-PONTX-Dq3c.