ENTRY       M00175            Pathway   Module
NAME        Nitrogen fixation, nitrogen => ammonia
DEFINITION  K02588+K02586+K02591-K00531,K22896+K22897+K22898+K22899
ORTHOLOGY   K02588  nitrogenase iron protein [RN:R05185]
            K02586+K02591  nitrogenase molybdenum-iron protein [EC:1.18.6.1] [RN:R05185]
            K00531  nitrogenase delta subunit [EC:1.18.6.1] [RN:R05185]
            K22896+K22897  vanadium-dependent nitrogenase [EC:1.18.6.2] [RN:R12084]
            K22898  vanadium nitrogenase delta subunit [EC:1.18.6.2] [RN:R12084]
            K22899  vanadium nitrogenase iron protein [RN:R12084]
CLASS       Pathway modules; Energy metabolism; Nitrogen metabolism
PATHWAY     map00910  Nitrogen metabolism
            map01310  Nitrogen cycle
            map01100  Metabolic pathways
            map01120  Microbial metabolism in diverse environments
REACTION    R05185,R12084  C00697 -> C00014
COMPOUND    C00697  Nitrogen
            C00014  Ammonia
REFERENCE   PMID:14702404
  AUTHORS   Scott JD, Ludwig RA
  TITLE     Azorhizobium caulinodans electron-transferring flavoprotein N electrochemically couples pyruvate dehydrogenase complex activity to N2 fixation.
  JOURNAL   Microbiology 150:117-26 (2004)
            DOI:10.1099/mic.0.26603-0
REFERENCE   PMID:17408485
  AUTHORS   Kneip C, Lockhart P, Voss C, Maier UG
  TITLE     Nitrogen fixation in eukaryotes--new models for symbiosis.
  JOURNAL   BMC Evol Biol 7:55 (2007)
            DOI:10.1186/1471-2148-7-55
REFERENCE   PMID:19478062
  AUTHORS   Lee CC, Hu Y, Ribbe MW
  TITLE     Unique features of the nitrogenase VFe protein from Azotobacter vinelandii.
  JOURNAL   Proc Natl Acad Sci U S A 106:9209-14 (2009)
            DOI:10.1073/pnas.0904408106
REFERENCE   PMID:28692069
  AUTHORS   Sippel D, Einsle O
  TITLE     The structure of vanadium nitrogenase reveals an unusual bridging ligand.
  JOURNAL   Nat Chem Biol 13:956-960 (2017)
            DOI:10.1038/nchembio.2428
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