Fig 9. Selective usage of ANP32 proteins by IAV and IBV polymerase and their molecular basis.
Schematic model of interaction between ANP32 proteins and influenza viral polymerase. ANP32A, ANP32B, ANP32E from human and chicken interact with polymerase (Pol3) of IBV, avian-origin IAV (with PB2 627E), and mammal adapted IAV (with PB2 627K). The specific amino acid residues are indicated.