Figure 9.

(a) The docking model (blue) and the original 28SRNA (yellow). A4324 was artificially manipulated. (b) The docking of 28SRNA (blue) on abrin-a A-chain (purple) and AAG A-chain (yellow). (c) G4323 (red) of 28SRNA docking model (blue), is hydrogen-bonded with Asn2000 of abrin-a A-chain (purple), but has no interaction with corresponding Pro199 of AAG A-chain (yellow).