| FMP fills the active site of RTA |
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| l | FMP is a non |
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| hydrolyable
analog |
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| of substrate AMP |
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| l | FMP was soaked |
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| into ricin
crystals |
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| l | The 2.5 A structure |
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| revealed details
of |
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| substrate
recognition |
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| by RTA |
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| V81 |
| Y80 |
| E177 |
| R180 |