Distinctive Nuclear Localization Signals in the Oomycete Phytophthora sojae

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dc.contributor.authorFang, Yufengen
dc.contributor.authorJang, Hyo Sangen
dc.contributor.authorWatson, Gregory W.en
dc.contributor.authorWellappili, Dulani P.en
dc.contributor.authorTyler, Brett M.en
dc.date.accessioned2017-03-28T17:31:56Zen
dc.date.available2017-03-28T17:31:56Zen
dc.date.issued2017-02-02en
dc.description.abstractTo date, nuclear localization signals (NLSs) that target proteins to nuclei in oomycetes have not been defined, but have been assumed to be the same as in higher eukaryotes. Here, we use the soybean pathogen Phytophthora sojae as a model to investigate these sequences in oomycetes. By establishing a reliable in vivo NLS assay based on confocal microscopy, we found that many canonical monopartite and bipartite classical NLSs (cNLSs) mediated nuclear import poorly in P. sojae. We found that efficient localization of P. sojae nuclear proteins by cNLSs requires additional basic amino acids at distal sites or collaboration with other NLSs. We found that several representatives of another well-characterized NLS, proline-tyrosine NLS (PY-NLS) also functioned poorly in P. sojae. To characterize PY-NLSs in P. sojae, we experimentally defined the residues required by functional PY-NLSs in three P. sojae nuclear-localized proteins. These results showed that functional P. sojae PY-NLSs include an additional cluster of basic residues for efficient nuclear import. Finally, analysis of several highly conserved P. sojae nuclear proteins including ribosomal proteins and core histones revealed that these proteins exhibit a similar but stronger set of sequence requirements for nuclear targeting compared with their orthologs in mammals or yeast.en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.3389/fmicb.2017.00010en
dc.identifier.urihttp://hdl.handle.net/10919/76697en
dc.identifier.volume8en
dc.language.isoen_USen
dc.publisherFrontiersen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectoomycetesen
dc.subjectPhytophthora sojaeen
dc.subjectnuclear localizationen
dc.subjectNLSen
dc.subjectclassical NLSen
dc.subjectPY-NLSen
dc.subjectnucleus labelingen
dc.titleDistinctive Nuclear Localization Signals in the Oomycete Phytophthora sojaeen
dc.title.serialFrontiers in Microbiologyen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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