Entry
Name
ammonia monooxygenase;
AMO
Class
Oxidoreductases;
Acting on paired donors, with incorporation or reduction of molecular oxygen;
Miscellaneous
BRITE hierarchy
Sysname
ammonia,donor:oxygen oxidoreductase (hydroxylamine-producing)
Reaction(IUBMB)
NH3 + a reduced acceptor + O2 = NH2OH + an acceptor + H2O [RN:
R09519 ]
Reaction(KEGG)
Substrate
Product
Comment
The enzyme catalyses the first reaction in the pathway of ammonia oxidation to nitrite. It contains copper [1], iron [5] and possibly zinc [9]. The enzyme requires two electrons, which are derived indirectly from the quinone pool via a membrane-bound donor.
History
EC 1.14.99.39 created 2010
Pathway
ec01120 Microbial metabolism in diverse environments
Orthology
K10944 methane/ammonia monooxygenase subunit A
Genes
MCA : MCA1797(pmoA) MCA2854(pmoA2)
METU : GNH96_03570 GNH96_09690
MMEO : OOT43_00490 OOT43_14055
MDN : JT25_004545 JT25_012445
MDH : AYM39_18580 AYM39_19770
MKO : MKLM6_3758 MKLM6_3997
METL : U737_00525 U737_22530
MPAD : KEF85_05595 KEF85_15100
MELL : IVG45_01190 IVG45_17415
MSZE : MSZNOR_3294(pmoA) MSZNOR_4515(pmoA)
MMOB : F6R98_01475 F6R98_16060
MOZ : MoryE10_29180 MoryE10_29210
MISZ : MishRS11D_20920 MishRS11D_40480 MishRS11D_42080
MEIY : MIN45_P0548 MIN45_P2284
MCAU : MIT9_P0452 MIT9_P0923
NEU : NE0944(amoA1) NE2063(amoA2)
NIT : NAL212_0798 NAL212_1387 NAL212_2605
NII : Nit79A3_0472 Nit79A3_1080 Nit79A3_2885
NCO : AAW31_01085 AAW31_05380
NUR : ATY38_01310 ATY38_07255 ATY38_13755
NST : Nstercoris_00328 Nstercoris_01426
NMU : Nmul_A0799 Nmul_A2325 Nmul_A2765
NLC : EBAPG3_006230 EBAPG3_014830 EBAPG3_15005
NIZ : NNRS527_00820 NNRS527_02502 NNRS527_03102
MSC : BN69_0203(pmoA2) BN69_2827(pmoA) BN69_3534(pmoA)
MBRY : B1812_00565 B1812_13465 B1812_14775 B1812_18680
MROS : EHO51_01980 EHO51_08605
MHEY : H2LOC_006300 H2LOC_011625 H2LOC_017530
MPAR : F7D14_03105 F7D14_11665 F7D14_16695
MIWA : SS37A_06920 SS37A_17860 SS37A_28170
MTW : CQW49_01220 CQW49_10255
MECQ : MSC49_20790 MSC49_22310 MSC49_34660
MIN : Minf_1507(pmoA) Minf_1510(pmoA) Minf_1590(pmoA)
MKC : kam1_1359(pmoA3) kam1_1509(pmoA2) kam1_1512(pmoA1) kam1_1972(pmoA4)
MFH : MFUM_1605(pmoA3) MFUM_1792(pmoA1) MFUM_1795(pmoA2)
MCAO : IT6_09400 IT6_09940 IT6_09955
MEAP : MTHMO_0894(pmoA1) MTHMO_0897(pmoA2)
» show all
Taxonomy
Reference
Authors
Ensign SA, Hyman MR, Arp DJ
Title
In vitro activation of ammonia monooxygenase from Nitrosomonas europaea by copper.
Journal
Reference
Authors
Hyman MR, Page CL, Arp DJ
Title
Oxidation of methyl fluoride and dimethyl ether by ammonia monooxygenase in Nitrosomonas europaea.
Journal
Reference
Authors
Bergmann DJ, Hooper AB
Title
Sequence of the gene, amoB, for the 43-kDa polypeptide of ammonia monoxygenase of Nitrosomonas europaea.
Journal
Sequence
Reference
Authors
Holmes AJ, Costello A, Lidstrom ME, Murrell JC
Title
Evidence that particulate methane monooxygenase and ammonia monooxygenase may be evolutionarily related.
Journal
Reference
Authors
Zahn JA, Arciero DM, Hooper AB, DiSpirito AA
Title
Evidence for an iron center in the ammonia monooxygenase from Nitrosomonas europaea.
Journal
Reference
Authors
Moir JW, Crossman LC, Spiro S, Richardson DJ
Title
The purification of ammonia monooxygenase from Paracoccus denitrificans.
Journal
Reference
Authors
Whittaker M, Bergmann D, Arciero D, Hooper AB
Title
Electron transfer during the oxidation of ammonia by the chemolithotrophic bacterium Nitrosomonas europaea.
Journal
Reference
Authors
Arp DJ, Sayavedra-Soto LA, Hommes NG.
Title
Molecular biology and biochemistry of ammonia oxidation by Nitrosomonas europaea.
Journal
Reference
Authors
Gilch S, Meyer O, Schmidt I
Title
A soluble form of ammonia monooxygenase in Nitrosomonas europaea.
Journal
Other DBs
UM-BBD (Biocatalysis/Biodegradation Database): 1.14.99.39