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Corrigendum: Molecular analysis of the UV-inducible pili operon from Sulfolobus acidocaldarius (vol 2, pg 928, 2013)

van Wolferen, M., Ajon, M., Driessen, A. J. M. & Albers, S-V., Dec-2016, In : MicrobiologyOpen. 5, 6, p. 1085-1085 1 p.

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Correction regarding Sulfolobus acidocaldarius strain GA06

Upon resequencing we discovered that strain GA06 was not, as published (van Wolferen et al., 2013), a deletion of the upsX ORF and a 40 bp upstream region, but was a deletion starting 55 bp upstream and ending 35 bp downstream of upsX. Since this could affect the genes downstream of UpsX, a clean deletion mutant of the upsX promoter (all 261 bp upstream of upsX) was created and analysed by qRT-PCR studies as well as by UV-induced aggregation assays. qRT-PCR experiments showed that in this strain, upsE, F, A and B were upregulated normally upon UV-induction, and aggregation experiments showed that the deletion mutant of the upsX promoter aggregated in a similar manner as the WT strain after treatment with UV-light. These results are similar to the results obtained for the deletion of the upsX gene (MW115, ΔupsX, Figures 4 and 5). Therefore, the promoter in front of upsX is not the primary promoter of the ups-operon and is also not essential for transcription of the other ups-genes.

Additionally, we discovered that the EM image in Figure 6 (GA06) was accidently replaced by an image of strain (ΔupsEF). Both strains did not show any UV induced pili, but the specific image shown was not obtained for this strain. All other strains and EM pictures and the conclusions obtained with these strains are correct.
Original languageEnglish
Pages (from-to)1085-1085
Number of pages1
JournalMicrobiologyOpen
Volume5
Issue number6
Publication statusPublished - Dec-2016
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  1. Molecular analysis of the UV-inducible pili operon from Sulfolobus acidocaldarius

    Wolferen, M. V., Ajon, M., Driessen, A. J. M. & Albers, S-V., 2013, In : MicrobiologyOpen. 2, 6, p. 928-937 10 p.

    Research output: Contribution to journalArticleAcademicpeer-review

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