ID   ACCO_PRUMU              Reviewed;         319 AA.
AC   Q9MB94;
DT   02-NOV-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2000, sequence version 1.
DT   03-AUG-2022, entry version 81.
DE   RecName: Full=1-aminocyclopropane-1-carboxylate oxidase;
DE            Short=ACC oxidase;
DE            EC=1.14.17.4;
DE   AltName: Full=Ethylene-forming enzyme;
DE            Short=EFE;
GN   Name=ACO1;
OS   Prunus mume (Japanese apricot) (Armeniaca mume).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; fabids; Rosales; Rosaceae; Amygdaloideae; Amygdaleae; Prunus.
OX   NCBI_TaxID=102107;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RA   Mita S., Kirita C., Kato M., Hyodo H.;
RT   "Expression of ACC synthase is enhanced earlier than that of ACC oxidase
RT   during fruit ripening of mume (Prunus mume).";
RL   Physiol. Plantarum 107:319-328(1999).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=1-aminocyclopropane-1-carboxylate + L-ascorbate + O2 = CO2 +
CC         ethene + 2 H2O + hydrogen cyanide + L-dehydroascorbate;
CC         Xref=Rhea:RHEA:23640, ChEBI:CHEBI:15377, ChEBI:CHEBI:15379,
CC         ChEBI:CHEBI:16526, ChEBI:CHEBI:18153, ChEBI:CHEBI:18407,
CC         ChEBI:CHEBI:38290, ChEBI:CHEBI:58360, ChEBI:CHEBI:58539;
CC         EC=1.14.17.4;
CC   -!- COFACTOR:
CC       Name=Fe cation; Xref=ChEBI:CHEBI:24875;
CC   -!- PATHWAY: Alkene biosynthesis; ethylene biosynthesis via S-adenosyl-L-
CC       methionine; ethylene from S-adenosyl-L-methionine: step 2/2.
CC   -!- SIMILARITY: Belongs to the iron/ascorbate-dependent oxidoreductase
CC       family. {ECO:0000305}.
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DR   EMBL; AB031027; BAA90550.1; -; mRNA.
DR   RefSeq; NP_001280183.1; NM_001293254.1.
DR   AlphaFoldDB; Q9MB94; -.
DR   SMR; Q9MB94; -.
DR   PRIDE; Q9MB94; -.
DR   GeneID; 103329345; -.
DR   KEGG; pmum:103329345; -.
DR   UniPathway; UPA00384; UER00563.
DR   GO; GO:0009815; F:1-aminocyclopropane-1-carboxylate oxidase activity; IEA:UniProtKB-EC.
DR   GO; GO:0031418; F:L-ascorbic acid binding; IEA:UniProtKB-KW.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0009693; P:ethylene biosynthetic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0009835; P:fruit ripening; IEA:UniProtKB-KW.
DR   Gene3D; 2.60.120.330; -; 1.
DR   InterPro; IPR026992; DIOX_N.
DR   InterPro; IPR044861; IPNS-like_FE2OG_OXY.
DR   InterPro; IPR027443; IPNS-like_sf.
DR   InterPro; IPR005123; Oxoglu/Fe-dep_dioxygenase.
DR   Pfam; PF03171; 2OG-FeII_Oxy; 1.
DR   Pfam; PF14226; DIOX_N; 1.
DR   PROSITE; PS51471; FE2OG_OXY; 1.
PE   2: Evidence at transcript level;
KW   Ethylene biosynthesis; Fruit ripening; Iron; Metal-binding; Oxidoreductase;
KW   Vitamin C.
FT   CHAIN           1..319
FT                   /note="1-aminocyclopropane-1-carboxylate oxidase"
FT                   /id="PRO_0000067274"
FT   DOMAIN          153..253
FT                   /note="Fe2OG dioxygenase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00805"
FT   BINDING         177
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00805"
FT   BINDING         179
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00805"
FT   BINDING         234
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00805"
SQ   SEQUENCE   319 AA;  36243 MW;  31697F96C89F7DB2 CRC64;
     MENFPIINLE GLNGEGRKAT MEKIKDACEN WGFFELVSHG IPTEFLDTVE RLTKEHYRQC
     LEQRFKELVA SKGLEAVKTE VNDMDWESTF YLRHLPKSNI SEVPDLEDQY RNVMKEFALK
     LEKLAEQLLD LLCENLGLEK GYLKKAFYGT NGPTFGTKVS NYPPCPNPEL IKGLRAHTDA
     GGLILLFQDD KVSGLQLLKD GQWIDVPPMR HSIVINLGDQ LEVITNGKYR SVEHRVIAQT
     DGTRMSIASF YNPGSDAVIY PAPTLVEKEA EEKNQVYPKF VFEDYMKLYA GLKFQPKEPR
     FEAMKAVETN ISLVPIATA