2X4J_A 17 FFTNKIGCNVSSPLKHVDIVGEIVEEAVYNFLIDAGDKMCVGNKIGVWKVSKCEGSSGSGGERRK 81 Pyrobaculum spherical virus 2X4J_A 17 FFTNKIGCNVSSPLKHVDIVGEIVEEAVYNFLIDAGDKMCVGNKIGVWKVSKCEGSSGSGGERRK 81 Pyrobaculum spherical virus