ENTRY       mtr00195                    Pathway
NAME        Photosynthesis - Medicago truncatula (barrel medic)
DESCRIPTION Photosynthesis in green plants and specialized bacteria is the process of utilizing light energy to synthesize organic compounds from carbon dioxide and water. It consists of the light dependent part (light reaction) and the light independent part (dark reaction, carbon fixation). The light reaction takes place in thylakoid, a membrane-bound compartment inside chloroplasts and cyanobacteria. The light energy is used by photosystems I and II to generate proton motive force and reducing power (NADPH or NADH). The proton motive force is used by ATP synthase to generate ATP, essentially in the same way as the mitochondrial respiratory chain. The supplies of ATP and NAD(P)H are then used to fix carbon dioxide.
CLASS       Metabolism; Energy metabolism
PATHWAY_MAP mtr00195  Photosynthesis
MODULE      mtr_M00157  F-type ATPase, prokaryotes and chloroplasts [PATH:mtr00195]
            mtr_M00161  Photosystem II [PATH:mtr00195]
            mtr_M00163  Photosystem I [PATH:mtr00195]
ORGANISM    Medicago truncatula (barrel medic) [GN:mtr]
GENE        120577103  photosystem II protein D1-like [KO:K02703] [EC:1.10.3.9]
            120580075  photosystem II protein D1 [KO:K02703] [EC:1.10.3.9]
            120580929  photosystem II protein D1-like [KO:K02703] [EC:1.10.3.9]
            5333175  psbA; photosystem II protein D1 [KO:K02703] [EC:1.10.3.9]
            120580174  photosystem II CP47 reaction center protein [KO:K02704]
            5333163  psbB; photosystem II 47 kDa protein [KO:K02704]
            120577636  photosystem II CP43 reaction center protein [KO:K02705]
            120580070  LOW QUALITY PROTEIN: photosystem II CP43 reaction center protein-like [KO:K02705]
            5333132  psbC; photosystem II 44 kDa protein [KO:K02705]
            5333170  psbD; photosystem II protein D2 [KO:K02706] [EC:1.10.3.9]
            5333183  psbE; photosystem II protein V [KO:K02707]
            5333091  psbF; photosystem II protein VI [KO:K02708]
            5333104  psbH; photosystem II protein H [KO:K02709]
            5333166  psbI; photosystem II protein I [KO:K02710]
            5333176  psbJ; photosystem II protein J [KO:K02711]
            5333161  psbK; photosystem II protein K [KO:K02712]
            5333137  psbL; photosystem II protein L [KO:K02713]
            5333153  psbM; photosystem II protein M [KO:K02714]
            25501656  oxygen-evolving enhancer protein 1, chloroplastic [KO:K02716]
            11405827  oxygen-evolving enhancer protein 1, chloroplastic [KO:K02716]
            25497707  psbP-like protein 1, chloroplastic isoform X1 [KO:K02717]
            11429945  oxygen-evolving enhancer protein 2, chloroplastic [KO:K02717]
            25490561  oxygen-evolving enhancer protein 2, chloroplastic [KO:K02717]
            11405533  photosynthetic NDH subunit of lumenal location 3, chloroplastic [KO:K08901]
            25499987  oxygen-evolving enhancer protein 3-2, chloroplastic [KO:K08901]
            11413262  photosynthetic NDH subunit of lumenal location 2, chloroplastic [KO:K08901]
            11446770  photosystem II 10 kDa polypeptide, chloroplastic [KO:K03541]
            11419130  photosystem II 22 kDa protein, chloroplastic [KO:K03542]
            5333142  psbT; photosystem II protein T [KO:K02718]
            25499202  photosystem II reaction center W protein, chloroplastic isoform X1 [KO:K02721]
            25484344  photosystem II reaction center W protein, chloroplastic [KO:K02721]
            11416110  photosystem II core complex proteins psbY, chloroplastic [KO:K02723]
            25501820  photosystem II core complex proteins psbY, chloroplastic [KO:K02723]
            5333168  psbZ; photosystem II protein Z [KO:K02724]
            25487627  photosystem II repair protein PSB27-H1, chloroplastic [KO:K08902]
            25484200  photosystem II reaction center PSB28 protein, chloroplastic [KO:K08903]
            120577099  photosystem I P700 chlorophyll a apoprotein A1-like [KO:K02689]
            120580066  photosystem I P700 chlorophyll a apoprotein A1 [KO:K02689]
            120579653  photosystem I P700 chlorophyll a apoprotein A1-like [KO:K02689]
            5333192  psaA; photosystem I P700 chlorophyll a apoprotein A1 [KO:K02689]
            120579654  photosystem I P700 chlorophyll a apoprotein A2 [KO:K02690]
            120580067  photosystem I P700 chlorophyll a apoprotein A2 [KO:K02690]
            5333114  psaB; photosystem I P700 chlorophyll a apoprotein A2 [KO:K02690]
            5333156  psaC; photosystem I subunit VII [KO:K02691]
            11438662  photosystem I reaction center subunit II, chloroplastic [KO:K02692]
            25484169  photosystem I reaction center subunit IV A, chloroplastic [KO:K02693]
            11430839  photosystem I reaction center subunit IV B, chloroplastic [KO:K02693]
            25486289  photosystem I reaction center subunit III, chloroplastic [KO:K02694]
            11422409  photosystem I reaction center subunit V, chloroplastic [KO:K08905]
            11442004  photosystem I reaction center subunit VI, chloroplastic [KO:K02695]
            5333110  psaI; photosystem I subunit VIII [KO:K02696]
            5333171  psaJ; photosystem I subunit IX [KO:K02697]
            25482249  photosystem I reaction center subunit psaK, chloroplastic [KO:K02698]
            11408159  photosystem I reaction center subunit XI, chloroplastic [KO:K02699]
            11431141  photosystem I reaction center subunit N, chloroplastic [KO:K02701]
            25492256  photosystem I subunit O isoform X2 [KO:K14332]
            120580077  cytochrome f [KO:K02634]
            120580171  cytochrome f [KO:K02634]
            5333092  petA; cytochrome f [KO:K02634]
            5333180  petB; cytochrome b6 [KO:K02635]
            120580178  LOW QUALITY PROTEIN: cytochrome b6-like [KO:K02635]
            11427739  cytochrome b6-f complex iron-sulfur subunit, chloroplastic [KO:K02636] [EC:7.1.1.6]
            5333124  petD; cytochrome b6/f complex subunit IV [KO:K02637]
            120580180  cytochrome b6-f complex subunit 4 [KO:K02637]
            5333146  petG; cytochrome b6/f complex subunit V [KO:K02640]
            5333150  petN; cytochrome b6/f complex subunit VIII [KO:K03689]
            11426844  plastocyanin [KO:K02638]
            11423564  ferredoxin [KO:K02639]
            11408737  ferredoxin, leaf L-A [KO:K02639]
            11415783  ferredoxin, root R-B2 [KO:K02639]
            11445243  ferredoxin, root R-B1 [KO:K02639]
            11413430  ferredoxin C 2, chloroplastic [KO:K02639]
            11441450  ferredoxin C 1, chloroplastic [KO:K02639]
            25485574  ferredoxin, root R-B1 isoform X1 [KO:K02639]
            25485576  ferredoxin, root R-B1 [KO:K02639]
            11414418  ferredoxin--NADP reductase, root isozyme, chloroplastic [KO:K02641] [EC:1.18.1.2]
            11418744  ferredoxin--NADP reductase, leaf isozyme, chloroplastic [KO:K02641] [EC:1.18.1.2]
            11444053  cytochrome c6, chloroplastic [KO:K08906]
            5333201  atpE; ATP synthase CF1 epsilon subunit [KO:K02114]
            120576024  ATP synthase subunit beta, chloroplastic-like [KO:K02112] [EC:7.1.2.2 7.2.2.1]
            120577094  ATP synthase subunit beta, chloroplastic-like [KO:K02112] [EC:7.1.2.2 7.2.2.1]
            120580072  LOW QUALITY PROTEIN: ATP synthase subunit beta, chloroplastic-like [KO:K02112] [EC:7.1.2.2 7.2.2.1]
            5333118  atpB; ATP synthase CF1 beta subunit [KO:K02112] [EC:7.1.2.2 7.2.2.1]
            11428261  ATP synthase gamma chain 2, chloroplastic [KO:K02115]
            25481739  ATP synthase gamma chain, chloroplastic [KO:K02115]
            120578125  ATP synthase subunit alpha, chloroplastic-like [KO:K02111] [EC:7.1.2.2 7.2.2.1]
            120579887  ATP synthase subunit alpha, chloroplastic [KO:K02111] [EC:7.1.2.2 7.2.2.1]
            120579891  ATP synthase subunit alpha, chloroplastic [KO:K02111] [EC:7.1.2.2 7.2.2.1]
            5333154  atpA; ATP synthase CF1 alpha subunit [KO:K02111] [EC:7.1.2.2 7.2.2.1]
            11426714  ATP synthase delta chain, chloroplastic [KO:K02113]
            11407939  ATP synthase delta chain, chloroplastic [KO:K02113]
            112416725  putative ATP synthase protein YMF19 [KO:K02109]
            11432459  ATP synthase subunit b', chloroplastic [KO:K02109]
            26974352  atp8; ATPase subunit 8 [KO:K02109]
            5333195  atpF; ATP synthase CF0 B subunit [KO:K02109]
            120580089  ATP synthase subunit c, chloroplastic [KO:K02110]
            120580173  ATP synthase subunit c, chloroplastic [KO:K02110]
            5333112  atpH; ATP synthase CF0 C subunit [KO:K02110]
            120580090  ATP synthase subunit a, chloroplastic [KO:K02108]
            5333169  atpI; ATP synthase CF0 A subunit [KO:K02108]
COMPOUND    C00001  H2O
            C00002  ATP
            C00005  NADPH
            C00006  NADP+
            C00007  Oxygen
            C00008  ADP
            C00009  Orthophosphate
            C00034  Manganese
            C00080  H+
            C02061  Plastoquinone
            C02185  Plastoquinol-1
REFERENCE   PMID:14764885
  AUTHORS   Ferreira KN, Iverson TM, Maghlaoui K, Barber J, Iwata S.
  TITLE     Architecture of the photosynthetic oxygen-evolving center.
  JOURNAL   Science 303:1831-8 (2004)
            DOI:10.1126/science.1093087
REFERENCE   PMID:12518057
  AUTHORS   Kamiya N, Shen JR.
  TITLE     Crystal structure of oxygen-evolving photosystem II from Thermosynechococcus vulcanus at 3.7-A resolution.
  JOURNAL   Proc Natl Acad Sci U S A 100:98-103 (2003)
            DOI:10.1073/pnas.0135651100
REFERENCE   PMID:11217865
  AUTHORS   Zouni A, Witt HT, Kern J, Fromme P, Krauss N, Saenger W, Orth P.
  TITLE     Crystal structure of photosystem II from Synechococcus elongatus at 3.8 A resolution.
  JOURNAL   Nature 409:739-743 (2001)
            DOI:10.1038/35055589
REFERENCE   PMID:11418848
  AUTHORS   Jordan P, Fromme P, Witt HT, Klukas O, Saenger W, Krauss N.
  TITLE     Three-dimensional structure of cyanobacterial photosystem I at 2.5 A resolution.
  JOURNAL   Nature 411:909-917 (2001)
            DOI:10.1038/35082000
REFERENCE   PMID:11369223
  AUTHORS   Jones MR, Fyfe PK.
  TITLE     Photosynthesis: new light on biological oxygen production.
  JOURNAL   Curr Biol 17:R318-R321 (2001)
            DOI:10.1016/S0960-9822(01)00174-9
REFERENCE   PMID:11914373
  AUTHORS   Shen G, Zhao J, Reimer SK, Antonkine ML, Cai Q, Weiland SM, Golbeck JH, Bryant DA.
  TITLE     Assembly of photosystem I. I. Inactivation of the rubA gene encoding a membrane-associated rubredoxin in the cyanobacterium Synechococcus sp. PCC 7002 causes a loss of photosystem I activity.
  JOURNAL   J Biol Chem 277:20343-54 (2002)
            DOI:10.1074/jbc.M201103200
REL_PATHWAY mtr00196  Photosynthesis - antenna proteins
            mtr00710  Carbon fixation in photosynthetic organisms
KO_PATHWAY  ko00195
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