Crystal structures of an intein from the split dnaE gene of Synechocystis sp. PCC6803 reveal the catalytic model without the penultimate histidine and the mechanism of zinc ion inhibition of protein splicing
Sun, P., Ye, S., Ferrandon, S., Evans, T.C., Xu, M.Q., Rao, Z.(2005) J Mol Biol 353: 1093-1105
- PubMed: 16219320 
- DOI: 10.1016/j.jmb.2005.09.039
- Primary Citation of Related Structures:  
1ZD7, 1ZDE - PubMed Abstract: 
The first naturally occurring split intein was found in the dnaE gene of Synechocystis sp. PCC6803 and belongs to a subclass of inteins without a penultimate histidine residue. We describe two high-resolution crystal structures, one derived from an excised Ssp DnaE intein and the second from a splicing-deficient precursor protein ...