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|Title:||Isolation and characterization of group II introns from Pseudomonas alcaligenes and Pseudomonas putida|
|Authors:||Yeo, C.C. |
|Keywords:||Group II introns|
|Source:||Yeo, C.C., Yiin, S., Tan, B.H., Poh, C.L. (2001). Isolation and characterization of group II introns from Pseudomonas alcaligenes and Pseudomonas putida. Plasmid 45 (3) : 233-239. ScholarBank@NUS Repository. https://doi.org/10.1006/plas.2001.1518|
|Abstract:||Group II introns isolated from Pseudomonas alcaligenes NCIB 9867, Pseudomonas putida NCIB 9869, and P. putida KT2440 were closely related with nucleotide sequence identities of between 87 and 96%. The genome of P. alcaligenes also harbored a truncated group II intron of 682 bp that lacks the gene for the intron-encoded protein (IEP). Unlike most bacterial group II introns, the Pseudomonas introns were found to lack the Zn domains in their IEPs, did not appear to interrupt any genes, and were located downstream of open reading frames which were adjacent to hairpin loop structures that resemble rho-independent terminators. These structures also contain the intron binding sites 1 and 2 (IBS1 and IBS2 sequences) that were required for intron target site recognition in transposition. One of the group II introns found in P. alcaligenes, Xln3, was shown to have transposed from the chromosome to the endogenous pRA2 plasmid at a site adjacent to IBS1- and IBS2-like sequences. © 2001 Academic Press.|
|Appears in Collections:||Staff Publications|
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