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    Pathway Description
      Leucine Degradation
Arabidopsis thaliana
            Category:
                Metabolite Pathway
                Sub-Category:
                Metabolic
            Created: 2016-05-05
          Last Updated: 2025-01-25
        
          The degradation of L-leucine starts either in the mitochondria, the cytosol or the chloroplast. L-leucine reacts with 2-oxoglutarate through a branch-chain amino acid aminotransferase resulting in the release of ketoleucine and glutamate. Ketoleucine reacts with coenzyme a through a NAD dependent branched chain keto-acid dehydrogenase complex resulting in the release of NADH, carbon dioxide and isovaleryl-CoA. Isovaleryl-CoA reacts with an oxidized electron flavoprotein resulting in the release of a reduced flavoprotein and a methylcrotonyl-CoA. The latter reacts with ATP and hydrogen carbonate through a 3-methylcrotonyl-CoA carboxylase resulting in the release of phosphate, ADP, hydrogen ion and 3-methylglutaconyl-CoA. The latter compound reacts with water through a methylglutaconyl-CoA hydratase resulting in the release of hydroxy-3-methylglutaryl-CoA. The latter reacts with a hydroxymethylglutaryl-CoA lyase resulting in the release of acetyl-CoA and acetoacetate.
        
      References
      
      Leucine Degradation References
Binder S: Branched-Chain Amino Acid Metabolism in Arabidopsis thaliana. Arabidopsis Book. 2010;8:e0137. doi: 10.1199/tab.0137. Epub 2010 Aug 23.
                  Pubmed: 22303262
              Diebold R, Schuster J, Daschner K, Binder S: The branched-chain amino acid transaminase gene family in Arabidopsis encodes plastid and mitochondrial proteins. Plant Physiol. 2002 Jun;129(2):540-50. doi: 10.1104/pp.001602.
                  Pubmed: 12068099
              Fujiki Y, Sato T, Ito M, Watanabe A: Isolation and characterization of cDNA clones for the e1beta and E2 subunits of the branched-chain alpha-ketoacid dehydrogenase complex in Arabidopsis. J Biol Chem. 2000 Feb 25;275(8):6007-13.
                  Pubmed: 10681595
              Schuster J, Binder S: The mitochondrial branched-chain aminotransferase (AtBCAT-1) is capable to initiate degradation of leucine, isoleucine and valine in almost all tissues in Arabidopsis thaliana. Plant Mol Biol. 2005 Jan;57(2):241-54. doi: 10.1007/s11103-004-7533-1.
                  Pubmed: 15821880
              Taylor NL, Heazlewood JL, Day DA, Millar AH: Lipoic acid-dependent oxidative catabolism of alpha-keto acids in mitochondria provides evidence for branched-chain amino acid catabolism in Arabidopsis. Plant Physiol. 2004 Feb;134(2):838-48. doi: 10.1104/pp.103.035675. Epub 2004 Feb 5.
                  Pubmed: 14764908
              Che P, Wurtele ES, Nikolau BJ: Metabolic and environmental regulation of 3-methylcrotonyl-coenzyme A carboxylase expression in Arabidopsis. Plant Physiol. 2002 Jun;129(2):625-37. doi: 10.1104/pp.001842.
                  Pubmed: 12068107
              Chen W, Taylor NL, Chi Y, Millar AH, Lambers H, Finnegan PM: The metabolic acclimation of Arabidopsis thaliana to arsenate is sensitized by the loss of mitochondrial LIPOAMIDE DEHYDROGENASE2, a key enzyme in oxidative metabolism. Plant Cell Environ. 2014 Mar;37(3):684-95. doi: 10.1111/pce.12187. Epub 2013 Nov 11.
                  Pubmed: 23961884
              Daschner K, Couee I, Binder S: The mitochondrial isovaleryl-coenzyme a dehydrogenase of arabidopsis oxidizes intermediates of leucine and valine catabolism. Plant Physiol. 2001 Jun;126(2):601-12.
                  Pubmed: 11402190
              Ishizaki K, Schauer N, Larson TR, Graham IA, Fernie AR, Leaver CJ: The mitochondrial electron transfer flavoprotein complex is essential for survival of Arabidopsis in extended darkness. Plant J. 2006 Sep;47(5):751-60. doi: 10.1111/j.1365-313X.2006.02826.x.
                  Pubmed: 16923016
              Knill T, Schuster J, Reichelt M, Gershenzon J, Binder S: Arabidopsis branched-chain aminotransferase 3 functions in both amino acid and glucosinolate biosynthesis. Plant Physiol. 2008 Mar;146(3):1028-39. doi: 10.1104/pp.107.111609. Epub 2007 Dec 27.
                  Pubmed: 18162591
              Lutziger I, Oliver DJ: Characterization of two cDNAs encoding mitochondrial lipoamide dehydrogenase from Arabidopsis. Plant Physiol. 2001 Oct;127(2):615-23.
                  Pubmed: 11598235
              Rubio S, Larson TR, Gonzalez-Guzman M, Alejandro S, Graham IA, Serrano R, Rodriguez PL: An Arabidopsis mutant impaired in coenzyme A biosynthesis is sugar dependent for seedling establishment. Plant Physiol. 2006 Mar;140(3):830-43. doi: 10.1104/pp.105.072066. Epub 2006 Jan 13.
                  Pubmed: 16415216
              Schuster J, Knill T, Reichelt M, Gershenzon J, Binder S: Branched-chain aminotransferase4 is part of the chain elongation pathway in the biosynthesis of methionine-derived glucosinolates in Arabidopsis. Plant Cell. 2006 Oct;18(10):2664-79. doi: 10.1105/tpc.105.039339. Epub 2006 Oct 20.
                  Pubmed: 17056707
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                  Pubmed: 11130712
              Cheng CY, Krishnakumar V, Chan AP, Thibaud-Nissen F, Schobel S, Town CD: Araport11: a complete reannotation of the Arabidopsis thaliana reference genome. Plant J. 2017 Feb;89(4):789-804. doi: 10.1111/tpj.13415. Epub 2017 Feb 10.
                  Pubmed: 27862469
              Salanoubat M, Lemcke K, Rieger M, Ansorge W, Unseld M, Fartmann B, Valle G, Blocker H, Perez-Alonso M, Obermaier B, Delseny M, Boutry M, Grivell LA, Mache R, Puigdomenech P, De Simone V, Choisne N, Artiguenave F, Robert C, Brottier P, Wincker P, Cattolico L, Weissenbach J, Saurin W, Quetier F, Schafer M, Muller-Auer S, Gabel C, Fuchs M, Benes V, Wurmbach E, Drzonek H, Erfle H, Jordan N, Bangert S, Wiedelmann R, Kranz H, Voss H, Holland R, Brandt P, Nyakatura G, Vezzi A, D'Angelo M, Pallavicini A, Toppo S, Simionati B, Conrad A, Hornischer K, Kauer G, Lohnert TH, Nordsiek G, Reichelt J, Scharfe M, Schon O, Bargues M, Terol J, Climent J, Navarro P, Collado C, Perez-Perez A, Ottenwalder B, Duchemin D, Cooke R, Laudie M, Berger-Llauro C, Purnelle B, Masuy D, de Haan M, Maarse AC, Alcaraz JP, Cottet A, Casacuberta E, Monfort A, Argiriou A, flores M, Liguori R, Vitale D, Mannhaupt G, Haase D, Schoof H, Rudd S, Zaccaria P, Mewes HW, Mayer KF, Kaul S, Town CD, Koo HL, Tallon LJ, Jenkins J, Rooney T, Rizzo M, Walts A, Utterback T, Fujii CY, Shea TP, Creasy TH, Haas B, Maiti R, Wu D, Peterson J, Van Aken S, Pai G, Militscher J, Sellers P, Gill JE, Feldblyum TV, Preuss D, Lin X, Nierman WC, Salzberg SL, White O, Venter JC, Fraser CM, Kaneko T, Nakamura Y, Sato S, Kato T, Asamizu E, Sasamoto S, Kimura T, Idesawa K, Kawashima K, Kishida Y, Kiyokawa C, Kohara M, Matsumoto M, Matsuno A, Muraki A, Nakayama S, Nakazaki N, Shinpo S, Takeuchi C, Wada T, Watanabe A, Yamada M, Yasuda M, Tabata S: Sequence and analysis of chromosome 3 of the plant Arabidopsis thaliana. Nature. 2000 Dec 14;408(6814):820-2. doi: 10.1038/35048706.
                  Pubmed: 11130713
              Sato S, Kaneko T, Kotani H, Nakamura Y, Asamizu E, Miyajima N, Tabata S: Structural analysis of Arabidopsis thaliana chromosome 5. IV. Sequence features of the regions of 1,456,315 bp covered by nineteen physically assigned P1 and TAC clones. DNA Res. 1998 Feb 28;5(1):41-54. doi: 10.1093/dnares/5.1.41.
                  Pubmed: 9628582
              Tabata S, Kaneko T, Nakamura Y, Kotani H, Kato T, Asamizu E, Miyajima N, Sasamoto S, Kimura T, Hosouchi T, Kawashima K, Kohara M, Matsumoto M, Matsuno A, Muraki A, Nakayama S, Nakazaki N, Naruo K, Okumura S, Shinpo S, Takeuchi C, Wada T, Watanabe A, Yamada M, Yasuda M, Sato S, de la Bastide M, Huang E, Spiegel L, Gnoj L, O'Shaughnessy A, Preston R, Habermann K, Murray J, Johnson D, Rohlfing T, Nelson J, Stoneking T, Pepin K, Spieth J, Sekhon M, Armstrong J, Becker M, Belter E, Cordum H, Cordes M, Courtney L, Courtney W, Dante M, Du H, Edwards J, Fryman J, Haakensen B, Lamar E, Latreille P, Leonard S, Meyer R, Mulvaney E, Ozersky P, Riley A, Strowmatt C, Wagner-McPherson C, Wollam A, Yoakum M, Bell M, Dedhia N, Parnell L, Shah R, Rodriguez M, See LH, Vil D, Baker J, Kirchoff K, Toth K, King L, Bahret A, Miller B, Marra M, Martienssen R, McCombie WR, Wilson RK, Murphy G, Bancroft I, Volckaert G, Wambutt R, Dusterhoft A, Stiekema W, Pohl T, Entian KD, Terryn N, Hartley N, Bent E, Johnson S, Langham SA, McCullagh B, Robben J, Grymonprez B, Zimmermann W, Ramsperger U, Wedler H, Balke K, Wedler E, Peters S, van Staveren M, Dirkse W, Mooijman P, Lankhorst RK, Weitzenegger T, Bothe G, Rose M, Hauf J, Berneiser S, Hempel S, Feldpausch M, Lamberth S, Villarroel R, Gielen J, Ardiles W, Bents O, Lemcke K, Kolesov G, Mayer K, Rudd S, Schoof H, Schueller C, Zaccaria P, Mewes HW, Bevan M, Fransz P: Sequence and analysis of chromosome 5 of the plant Arabidopsis thaliana. Nature. 2000 Dec 14;408(6814):823-6. doi: 10.1038/35048507.
                  Pubmed: 11130714
              Yamada K, Lim J, Dale JM, Chen H, Shinn P, Palm CJ, Southwick AM, Wu HC, Kim C, Nguyen M, Pham P, Cheuk R, Karlin-Newmann G, Liu SX, Lam B, Sakano H, Wu T, Yu G, Miranda M, Quach HL, Tripp M, Chang CH, Lee JM, Toriumi M, Chan MM, Tang CC, Onodera CS, Deng JM, Akiyama K, Ansari Y, Arakawa T, Banh J, Banno F, Bowser L, Brooks S, Carninci P, Chao Q, Choy N, Enju A, Goldsmith AD, Gurjal M, Hansen NF, Hayashizaki Y, Johnson-Hopson C, Hsuan VW, Iida K, Karnes M, Khan S, Koesema E, Ishida J, Jiang PX, Jones T, Kawai J, Kamiya A, Meyers C, Nakajima M, Narusaka M, Seki M, Sakurai T, Satou M, Tamse R, Vaysberg M, Wallender EK, Wong C, Yamamura Y, Yuan S, Shinozaki K, Davis RW, Theologis A, Ecker JR: Empirical analysis of transcriptional activity in the Arabidopsis genome. Science. 2003 Oct 31;302(5646):842-6. doi: 10.1126/science.1088305.
                  Pubmed: 14593172
              Fujiki Y, Sato T, Ito M, Watanabe A: Isolation and characterization of cDNA clones for the e1beta and E2 subunits of the branched-chain alpha-ketoacid dehydrogenase complex in Arabidopsis. J Biol Chem. 2000 Feb 25;275(8):6007-13. doi: 10.1074/jbc.275.8.6007.
                  Pubmed: 10681595
              Kaneko T, Katoh T, Sato S, Nakamura A, Asamizu E, Tabata S: Structural analysis of Arabidopsis thaliana chromosome 3. II. Sequence features of the 4,251,695 bp regions covered by 90 P1, TAC and BAC clones. DNA Res. 2000 Jun 30;7(3):217-21. doi: 10.1093/dnares/7.3.217.
                  Pubmed: 10907853
              Sato S, Nakamura Y, Kaneko T, Katoh T, Asamizu E, Tabata S: Structural analysis of Arabidopsis thaliana chromosome 3. I. Sequence features of the regions of 4,504,864 bp covered by sixty P1 and TAC clones. DNA Res. 2000 Apr 28;7(2):131-5. doi: 10.1093/dnares/7.2.131.
                  Pubmed: 10819329
              Weaver LM, Lebrun L, Franklin A, Huang L, Hoffman N, Wurtele ES, Nikolau BJ: Molecular cloning of the biotinylated subunit of 3-methylcrotonyl-coenzyme A carboxylase of Arabidopsis thaliana. Plant Physiol. 1995 Mar;107(3):1013-4. doi: 10.1104/pp.107.3.1013.
                  Pubmed: 7716229
              McKean AL, Ke J, Song J, Che P, Achenbach S, Nikolau BJ, Wurtele ES: Molecular characterization of the non-biotin-containing subunit of 3-methylcrotonyl-CoA carboxylase. J Biol Chem. 2000 Feb 25;275(8):5582-90. doi: 10.1074/jbc.275.8.5582.
                  Pubmed: 10681539
              Mayer K, Schuller C, Wambutt R, Murphy G, Volckaert G, Pohl T, Dusterhoft A, Stiekema W, Entian KD, Terryn N, Harris B, Ansorge W, Brandt P, Grivell L, Rieger M, Weichselgartner M, de Simone V, Obermaier B, Mache R, Muller M, Kreis M, Delseny M, Puigdomenech P, Watson M, Schmidtheini T, Reichert B, Portatelle D, Perez-Alonso M, Boutry M, Bancroft I, Vos P, Hoheisel J, Zimmermann W, Wedler H, Ridley P, Langham SA, McCullagh B, Bilham L, Robben J, Van der Schueren J, Grymonprez B, Chuang YJ, Vandenbussche F, Braeken M, Weltjens I, Voet M, Bastiaens I, Aert R, Defoor E, Weitzenegger T, Bothe G, Ramsperger U, Hilbert H, Braun M, Holzer E, Brandt A, Peters S, van Staveren M, Dirske W, Mooijman P, Klein Lankhorst R, Rose M, Hauf J, Kotter P, Berneiser S, Hempel S, Feldpausch M, Lamberth S, Van den Daele H, De Keyser A, Buysshaert C, Gielen J, Villarroel R, De Clercq R, Van Montagu M, Rogers J, Cronin A, Quail M, Bray-Allen S, Clark L, Doggett J, Hall S, Kay M, Lennard N, McLay K, Mayes R, Pettett A, Rajandream MA, Lyne M, Benes V, Rechmann S, Borkova D, Blocker H, Scharfe M, Grimm M, Lohnert TH, Dose S, de Haan M, Maarse A, Schafer M, Muller-Auer S, Gabel C, Fuchs M, Fartmann B, Granderath K, Dauner D, Herzl A, Neumann S, Argiriou A, Vitale D, Liguori R, Piravandi E, Massenet O, Quigley F, Clabauld G, Mundlein A, Felber R, Schnabl S, Hiller R, Schmidt W, Lecharny A, Aubourg S, Chefdor F, Cooke R, Berger C, Montfort A, Casacuberta E, Gibbons T, Weber N, Vandenbol M, Bargues M, Terol J, Torres A, Perez-Perez A, Purnelle B, Bent E, Johnson S, Tacon D, Jesse T, Heijnen L, Schwarz S, Scholler P, Heber S, Francs P, Bielke C, Frishman D, Haase D, Lemcke K, Mewes HW, Stocker S, Zaccaria P, Bevan M, Wilson RK, de la Bastide M, Habermann K, Parnell L, Dedhia N, Gnoj L, Schutz K, Huang E, Spiegel L, Sehkon M, Murray J, Sheet P, Cordes M, Abu-Threideh J, Stoneking T, Kalicki J, Graves T, Harmon G, Edwards J, Latreille P, Courtney L, Cloud J, Abbott A, Scott K, Johnson D, Minx P, Bentley D, Fulton B, Miller N, Greco T, Kemp K, Kramer J, Fulton L, Mardis E, Dante M, Pepin K, Hillier L, Nelson J, Spieth J, Ryan E, Andrews S, Geisel C, Layman D, Du H, Ali J, Berghoff A, Jones K, Drone K, Cotton M, Joshu C, Antonoiu B, Zidanic M, Strong C, Sun H, Lamar B, Yordan C, Ma P, Zhong J, Preston R, Vil D, Shekher M, Matero A, Shah R, Swaby IK, O'Shaughnessy A, Rodriguez M, Hoffmann J, Till S, Granat S, Shohdy N, Hasegawa A, Hameed A, Lodhi M, Johnson A, Chen E, Marra M, Martienssen R, McCombie WR: Sequence and analysis of chromosome 4 of the plant Arabidopsis thaliana. Nature. 1999 Dec 16;402(6763):769-77. doi: 10.1038/47134.
                  Pubmed: 10617198
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