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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2006-9-14
pubmed:abstractText
The DnaE intein of Synechocystis sp. PCC6803 (Ssp DnaE intein) is the first split intein identified in nature. Its N-terminal fragment (Int-n) is attached to the end of the N-terminal half of the DnaE protein (DnaE-n) to form the precursor DnaE-n/Int-n, while the C-terminal fragment (Int-c) precedes the C-terminal half of the DnaE protein (DnaE-c) to form the precursor Int-c/DnaE-c. Int-n and Int-c fragments in the separate precursors catalyze, in concert, a protein trans-splicing process to splice the flanking DnaE-n and DnaE-c into a functional catalytic subunit of DNA polymerase III. They then release themselves from the precursors. Previously, the Ssp DnaE intein has been used to reconstitute a protein trans-splicing mechanism in stably transformed Arabidopsis thaliana, resulting in successful reassembly of an intact and functional GUS from two halves of a split GUS protein. In this report, transient expression using a biolistic particle bombardment approach is described for functional analysis of Ssp DnaE intein. Analyses confirmed that the Ssp DnaE intein could catalyze protein trans-splicing not only in model plants but also in monocot and dicot crops. It also demonstrated that when up to 45 amino acid residues were removed from the C-terminus of the Int-n fragment, the Int-n fragment was still able to function in the protein trans-splicing process.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0962-8819
pubmed:author
pubmed:issnType
Print
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
583-93
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Functional analysis of the split Synechocystis DnaE intein in plant tissues by biolistic particle bombardment.
pubmed:affiliation
Central Research and Development, E. I. DuPont de Nemours & Co., Experimental Station, Wilmington, DE 19880, USA. jianjun-gene.yang@usa.dupont.com
pubmed:publicationType
Journal Article