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Modularity of plant metabolic gene clusters: a trio of linked genes that are collectively required for acylation of triterpenes in oat.

Mugford ST, Louveau T, Melton R, Qi X, Bakht S, Hill L, Tsurushima T, Honkanen S, Rosser SJ, Lomonossoff GP, Osbourn A.

Plant Cell. 2013 Mar;25(3):1078-92. doi: 10.1105/tpc.113.110551. Erratum in: Plant Cell. 2013 Sep;25(9):3632.


Glycosyltransferases from oat (Avena) implicated in the acylation of avenacins.

Owatworakit A, Townsend B, Louveau T, Jenner H, Rejzek M, Hughes RK, Saalbach G, Qi X, Bakht S, Roy AD, Mugford ST, Goss RJ, Field RA, Osbourn A.

J Biol Chem. 2013 Feb 8;288(6):3696-704. doi: 10.1074/jbc.M112.426155. Erratum in: J Biol Chem. 2013 Jul 5;288(27):19644.


Investigation of triterpene synthesis and regulation in oats reveals a role for β-amyrin in determining root epidermal cell patterning.

Kemen AC, Honkanen S, Melton RE, Findlay KC, Mugford ST, Hayashi K, Haralampidis K, Rosser SJ, Osbourn A.

Proc Natl Acad Sci U S A. 2014 Jun 10;111(23):8679-84. doi: 10.1073/pnas.1401553111.


Metabolic diversification--independent assembly of operon-like gene clusters in different plants.

Field B, Osbourn AE.

Science. 2008 Apr 25;320(5875):543-7. doi: 10.1126/science.1154990.


A serine carboxypeptidase-like acyltransferase is required for synthesis of antimicrobial compounds and disease resistance in oats.

Mugford ST, Qi X, Bakht S, Hill L, Wegel E, Hughes RK, Papadopoulou K, Melton R, Philo M, Sainsbury F, Lomonossoff GP, Roy AD, Goss RJ, Osbourn A.

Plant Cell. 2009 Aug;21(8):2473-84. doi: 10.1105/tpc.109.065870.


A gene cluster for secondary metabolism in oat: implications for the evolution of metabolic diversity in plants.

Qi X, Bakht S, Leggett M, Maxwell C, Melton R, Osbourn A.

Proc Natl Acad Sci U S A. 2004 May 25;101(21):8233-8.


Cell type-specific chromatin decondensation of a metabolic gene cluster in oats.

Wegel E, Koumproglou R, Shaw P, Osbourn A.

Plant Cell. 2009 Dec;21(12):3926-36. doi: 10.1105/tpc.109.072124.


Formation of plant metabolic gene clusters within dynamic chromosomal regions.

Field B, Fiston-Lavier AS, Kemen A, Geisler K, Quesneville H, Osbourn AE.

Proc Natl Acad Sci U S A. 2011 Sep 20;108(38):16116-21. doi: 10.1073/pnas.1109273108.


Biochemical analysis of a multifunctional cytochrome P450 (CYP51) enzyme required for synthesis of antimicrobial triterpenes in plants.

Geisler K, Hughes RK, Sainsbury F, Lomonossoff GP, Rejzek M, Fairhurst S, Olsen CE, Motawia MS, Melton RE, Hemmings AM, Bak S, Osbourn A.

Proc Natl Acad Sci U S A. 2013 Aug 27;110(35):E3360-7. doi: 10.1073/pnas.1309157110.


Finding and analyzing plant metabolic gene clusters.

Osbourn A, Papadopoulou KK, Qi X, Field B, Wegel E.

Methods Enzymol. 2012;517:113-38. doi: 10.1016/B978-0-12-404634-4.00006-1.


Delineation of metabolic gene clusters in plant genomes by chromatin signatures.

Yu N, Nützmann HW, MacDonald JT, Moore B, Field B, Berriri S, Trick M, Rosser SJ, Kumar SV, Freemont PS, Osbourn A.

Nucleic Acids Res. 2016 Mar 18;44(5):2255-65. doi: 10.1093/nar/gkw100.


Biosynthesis of triterpenoid saponins in plants.

Haralampidis K, Trojanowska M, Osbourn AE.

Adv Biochem Eng Biotechnol. 2002;75:31-49. Review.


Sad3 and sad4 are required for saponin biosynthesis and root development in oat.

Mylona P, Owatworakit A, Papadopoulou K, Jenner H, Qin B, Findlay K, Hill L, Qi X, Bakht S, Melton R, Osbourn A.

Plant Cell. 2008 Jan;20(1):201-12. doi: 10.1105/tpc.107.056531.


Identification and genome organization of saponin pathway genes from a wild crucifer, and their use for transient production of saponins in Nicotiana benthamiana.

Khakimov B, Kuzina V, Erthmann PØ, Fukushima EO, Augustin JM, Olsen CE, Scholtalbers J, Volpin H, Andersen SB, Hauser TP, Muranaka T, Bak S.

Plant J. 2015 Nov;84(3):478-90. doi: 10.1111/tpj.13012.


The bHLH Transcription Factors TSAR1 and TSAR2 Regulate Triterpene Saponin Biosynthesis in Medicago truncatula.

Mertens J, Pollier J, Vanden Bossche R, Lopez-Vidriero I, Franco-Zorrilla JM, Goossens A.

Plant Physiol. 2016 Jan;170(1):194-210. doi: 10.1104/pp.15.01645.


Prediction of operon-like gene clusters in the Arabidopsis thaliana genome based on co-expression analysis of neighboring genes.

Wada M, Takahashi H, Altaf-Ul-Amin M, Nakamura K, Hirai MY, Ohta D, Kanaya S.

Gene. 2012 Jul 15;503(1):56-64. doi: 10.1016/j.gene.2012.04.043.


A different function for a member of an ancient and highly conserved cytochrome P450 family: from essential sterols to plant defense.

Qi X, Bakht S, Qin B, Leggett M, Hemmings A, Mellon F, Eagles J, Werck-Reichhart D, Schaller H, Lesot A, Melton R, Osbourn A.

Proc Natl Acad Sci U S A. 2006 Dec 5;103(49):18848-53.


Isolation, characterization, and avenacin sensitivity of a diverse collection of cereal-root-colonizing fungi.

Carter JP, Spink J, Cannon PF, Daniels MJ, Osbourn AE.

Appl Environ Microbiol. 1999 Aug;65(8):3364-72.


Together we stand: genes cluster to coordinate regulation.

Amoutzias G, Van de Peer Y.

Dev Cell. 2008 May;14(5):640-2. doi: 10.1016/j.devcel.2008.04.006.

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