Crystallization and preliminary X-ray st
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Karen E. Flick; Diane Mchugh; Barry L. Stoddard; Joe Don Heath; Kathryn M. Steph
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Article
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2008
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Cold Spring Harbor Laboratory Press
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English
β 449 KB
## Abstract The homing endonuclease Iβ__Ppo__I is encoded by an optional third intron, Pp LSU 3, found in nuclear, extrachromosomal copies of the __Physarum polycephalum__ 26s rRNA gene. This endonuclease promotes the lateral transfer or βhomingβ of its encoding intron by recognizing and cleaving a