Poly D Glutamic Acid Capsule Today

[-γ-D-Glu-γ-D-Glu-γ-D-Glu-]n The PDA capsule is encoded on the pXO2 plasmid (60–95 kb) in B. anthracis .

| Gene | Function | |------|----------| | capB | Capsule biosynthesis protein | | capC | Depolymerase/processing | | capA | Membrane-associated protein for polymerization | | dep | Capsule depolymerase (may be involved in release/modulation) | poly d glutamic acid capsule