Abstract
Large multipeptide protein complexes have provided a challenge for epitope selection, which is required for immunological protocols where native conformations are needed. Immunolocalization requires native conformation of the proteins, which is essential for further understanding of biological activity. RNA polymerase IV and V are multisubunit proteins that interact with other factors in the RNA-directed DNA methylation pathway for control of DNA silencing by small interfering RNA and DNA methylation. DNA silencing is an important process during cell differentiation, nuclear structure and viral control among others. RNA polymerase IV and V are yet to be studied in model monocot systems like Oryza sativa, which may provide further data to define if the genetic silencing mechanism has diverged over time as compared to dicots. Here we show an in silico selection process of exposed sequences and their use for obtaining antibodies against native RNA polymerase IV and V in O. sativa.
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- 2,4-D:
-
2,4-dichlorophenoxy acetic acid
- DAPI:
-
4′,6-diamidino-2-phenylindole
- Pol:
-
RNA polymerase
- siRNA:
-
small interfering RNA
References
Altschul S.F., Gish W., Miller W., Myers E.W. & Lipman D.J. 1990. Basic local alignment search tool. J. Mol. Biol. 215: 403–410.
Armache K.J., Mitterweger S., Meinhart A. & Cramer P. 2005. Structures of complete RNA polymerase II and its subcomplex, Rpb4/7. J. Biol. Chem. 280: 7131–7134.
Berman, H.M., Westbrook J., Feng Z., Gilliland G., Bhat T.N., Weissing H., Shindyalov I.N. & Bourne P.E. 2000. The Protein data bank. Nucleic Acids Res. 28: 235–242.
Chaw S.M., Chang C.C., Chen H.L. & Li W.H. 2004. Dating the monocot-dicot divergence and the origin of core eudicots using whole chloroplast genomes. J. Mol. Evol. 58: 424–441.
Cramer P., Bushnell D.A. & Kornberg R.D. 2001. Structural basis of transcription: RNA polymerase II at 2.8 angstrom resolution. Science 292: 1863–1876.
Durán-Figueroa N. & Vielle-Calzada J.P. 2010. ARGONAUTE9-dependet silencing of transposable elements in pericentromic regions of Arabidopsis. Plant Signal Behav. 5: 1476–1479.
Erhard K.F. Jr., Stonaker J.L., Parkinson S.E., Lim J.P., Hale C.J. & Hollick J.B. 2009. RNA polymerase IV functions in paramutation in Zea mays. Science 323: 1201–1205.
Goujon M., McWilliam H., Li W., Valentin F., Squizzato S., Paern J. & Lopez R. 2010. A new bioinformatics analysis tools framework at EMBL-EBI. Nucleic Acids Res. 38: 695–699.
Hahn S. 2004. Structure and mechanism of the RNA polymerase II transcription machinery. Nat. Struct. Mol. Biol. 11: 394–403.
He X.J., Hsu Y.F., Zhu S., Wierzbicki A.T., Pontes O., Pikaard C.S., Liu H.L., Wang C.S., Jin H. & Zhu J.K. 2009. An effector of RNA-directed DNA methylation in Arabidopsis is an ARGONATURE 4- and RNA-binding protein. Cell 137: 498–508.
Herr A.J., Jensen M.B., Dalmay T. & Baulcombe D.C. 2005. RNA polymerase IV directs silencing of endogenous DNA. Science 308: 118–120.
Lahmy S., Bies-Etheve N. & Lagrange T. 2010. Plant-specific multisubunit RNA polymerase in gene silencing. Epigenetics 5: 4–8.
Law J.A., Ausin I., Johnson L.M., Vashisht A.A., Zhu J.K., Wohlschlegel J.A. & Jacobsen S.E. 2010. A protein complex required for polymerase V transcripts and RNA-directed DNA methylation in Arabidopsis. Curr. Biol. 20: 951–956.
Lindskog M., Rockberg J., Uhlen M. & Sterky F. 2005. Selection of protein epitopes for antibody production. Biotechniques 38: 723–727.
Luo J. & Hall B.D. 2007. A multistep process gave rise to RNA polymerase IV of land plants. J. Mol. Evol. 64: 101–112.
Marchler-Bauer A., Panchenko A.R., Shoemaker B.A., Thiessen P.A., Geer L.Y. & Bryant S.H. 2002. CDD: a database of conserved domain alignments with links to domain threedimensional structure. Nucleic Acids Res. 30: 281–283.
Mariani T.S., Miyake H., Esyanti R.R. & Takeoka Y. 1998. Changes in surface structure during direct somatic embryogenesis in rice scutellum observed bt scanning electron microscopy. Plant Prod. Sci. 1: 223–231.
Matzke M., Kanno T., Daxinger L., Huettel B. & Matzke A.J. 2009. RNA-mediated chromatin-based silencing in plants. Curr. Opin. Cell Biol. 21: 367–376.
Olmedo-Monfil V., Duran-Figueroa N., Arteaga-Vazquez M., Demesa-Arevalo E., Autran D., Grimanelli D., Slotkin R.K., Matienssen R.A. & Vielle-Calzada J.P. 2010. Control of female gamete formation by a small RNA pathway in Arabidopsis. Nature 464: 628–632.
Onodera Y., Haag J.R., Ream T., Nunes P.C., Pontes O. & Pikaard C.S. 2005. Plant nuclear RNA polymerase IV mediates siRNA and DNA methylation-dependent heterochromatin formation. Cell 120: 613–622.
Pikkard C.S., Haag J.R., Ream T. & Wierzbicki A.T. 2008. Roles of RNA polymerase IV in gene silencing. Trends Plant Sci. 13: 390–397.
Pontes O., Costa-Nunes P., Vithayathil P. & Pikaard C.S. 2009. RNA polymerase V functions in Arabidopsis interphase heterochromatin organization independently of the 24-nt siRNAdirected DNA methylation pathway. Mol. Plant 2: 700–710.
Sidorenko L., Dorweiler J.E., Cigan A.M., Arteaga-Vazquez M. Vyas M. Kermicle J., Jurcin D., Brzeski J., Cai Y. & Chandler V.L. 2009. A dominant mutation in mediator of paramutaion2, one of three second-largest subunits of a plantspecific RNA polymerase, disrupts multiple siRNA silencing processes. PLoS Genet. 5: e1000725.
Stonaker J.L., Lim J.P., Erhard K.F. Jr. & Hollick J.B. 2009. Diversity of Pol IV function is defined by mutations at the maize rmr7 locus. PLoS Genet. 5: e1000706.
Vaitukaitis J., Robbins J.B., Nieschlag E. & Ross G.T. 1971. A method for producing specific antisera with small doses of immunogen. J. Clin. Endocrinol. Metab. 33: 988–991.
Valadez-Gonzalez N., Colli-Mull J.G., Brito-Argaez L., Munoz-Sanchez J.A., Zuniga-Aguilar J., Castano E. & Hernandez-Sotomayor S.M.T. 2007. Differential effect of aluminum on DNA synthesis and CDKA activity in two Coffea arabica cell lines. J. Plant Growth Regul. 26: 60–77.
Wang Y., Addess K.J., Chen J., Geer L.Y., He J., He S., Lu S., Madej T., Marchler-Bauer A., Thiessen P.A., Zhang N. & Bryant S.H., 2007. MMDB: annotating protein sequences with Entrez’s 3D-structure database. Nucleic Acids Res. 35: 298–300.
Wang Y., Geer L.Y., Chappey C., Kans J.A. & Bryant S.H. 2000. Cn3D: sequence and structure views for Entrez. Trends Biochem Sci. 25: 300–302.
Wierzbicki A.T., Ream T.S., Haag J.R. & Pikkard C.S. 2009. RNA polymerase V transcription guides ARGONAUTE4 to chromatin. Nat. Genet. 41: 630–634.
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de Rocio Canche Moo, L., Arroyo Herrera, A., Rodriguez-Zapata, L. et al. Epitope selection for multipeptide proteins: the case of RNA polymerase IV and V. Biologia 67, 845–851 (2012). https://doi.org/10.2478/s11756-012-0085-y
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DOI: https://doi.org/10.2478/s11756-012-0085-y


