Abstract:
AIMS:To develop a novel method for rapid construction of Campylobacter jejuni deletion mutants. METHODS AND RESULTS:We used overlapping extension PCR protocol to amplify a target sequence region of Camp. jejuni genomic DNA in which an internal fragment, Cj0618 coding sequence, was replaced by a chloramphenicol resistance cassette. After the resulting PCR product was introduced into electrocompetent Camp. jejuni 81-176, chloramphenicol-resistant mutants in which the wild type allele has been replaced by the deletion cassette were selected. DNA sequencing confirmed precise deletion in the Cj0618 gene. As expected from the previously reported role of Cj0618 in chick colonization, the resulting deletion mutant showed a caecal colonization defect in chick infection. CONCLUSIONS:This method can be used for rapid construction of Camp. jejuni deletion mutants. SIGNIFICANCE AND IMPACT OF THE STUDY:The use of this method should facilitate functional characterization of various Camp. jejuni genes.
journal_name
Lett Appl Microbioljournal_title
Letters in applied microbiologyauthors
Hansen CR,Khatiwara A,Ziprin R,Kwon YMdoi
10.1111/j.1472-765X.2007.02232.xsubject
Has Abstractpub_date
2007-12-01 00:00:00pages
599-603issue
6eissn
0266-8254issn
1472-765Xpii
LAM2232journal_volume
45pub_type
杂志文章abstract:AIMS:Rapid detection of pathogenic Yersinia enterocolitica isolates by using antisera raised against recombinant attachment-invasion locus (Ail) protein. METHODS AND RESULTS:The complete gene (471 bp) encoding for the Ail protein was amplified by PCR and cloned in pQE 30 UA vector. The recombinant clones were selected...
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pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
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更新日期:2019-08-01 00:00:00
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765x.1996.tb00022.x
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pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
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journal_title:Letters in applied microbiology
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更新日期:2012-12-01 00:00:00
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
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更新日期:1998-09-01 00:00:00