ID   SODC4_MAIZE             Reviewed;         152 AA.
AC   P23345;
DT   01-NOV-1991, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 2.
DT   03-AUG-2022, entry version 139.
DE   RecName: Full=Superoxide dismutase [Cu-Zn] 4A;
DE            EC=1.15.1.1;
GN   Name=SODCC.3; Synonyms=SOD4A;
OS   Zea mays (Maize).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; PACMAD clade;
OC   Panicoideae; Andropogonodae; Andropogoneae; Tripsacinae; Zea.
OX   NCBI_TaxID=4577;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RX   PubMed=2482436; DOI=10.1007/bf00261150;
RA   Cannon R.E., Scandalios J.G.;
RT   "Two cDNAs encode two nearly identical Cu/Zn superoxide dismutase proteins
RT   in maize.";
RL   Mol. Gen. Genet. 219:1-8(1989).
CC   -!- FUNCTION: Destroys radicals which are normally produced within the
CC       cells and which are toxic to biological systems.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2 H(+) + 2 superoxide = H2O2 + O2; Xref=Rhea:RHEA:20696,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:15379, ChEBI:CHEBI:16240,
CC         ChEBI:CHEBI:18421; EC=1.15.1.1;
CC   -!- COFACTOR:
CC       Name=Cu cation; Xref=ChEBI:CHEBI:23378; Evidence={ECO:0000250};
CC       Note=Binds 1 copper ion per subunit. {ECO:0000250};
CC   -!- COFACTOR:
CC       Name=Zn(2+); Xref=ChEBI:CHEBI:29105; Evidence={ECO:0000250};
CC       Note=Binds 1 zinc ion per subunit. {ECO:0000250};
CC   -!- SUBUNIT: Homodimer.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm.
CC   -!- SIMILARITY: Belongs to the Cu-Zn superoxide dismutase family.
CC       {ECO:0000305}.
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DR   EMBL; X17564; -; NOT_ANNOTATED_CDS; mRNA.
DR   PIR; S07007; S07007.
DR   RefSeq; NP_001105704.1; NM_001112234.1.
DR   AlphaFoldDB; P23345; -.
DR   SMR; P23345; -.
DR   GeneID; 542722; -.
DR   KEGG; zma:542722; -.
DR   MaizeGDB; 47586; -.
DR   OrthoDB; 1574423at2759; -.
DR   Proteomes; UP000007305; Unplaced.
DR   ExpressionAtlas; P23345; baseline and differential.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005507; F:copper ion binding; IBA:GO_Central.
DR   GO; GO:0004784; F:superoxide dismutase activity; IBA:GO_Central.
DR   GO; GO:0019430; P:removal of superoxide radicals; IBA:GO_Central.
DR   CDD; cd00305; Cu-Zn_Superoxide_Dismutase; 1.
DR   Gene3D; 2.60.40.200; -; 1.
DR   InterPro; IPR036423; SOD-like_Cu/Zn_dom_sf.
DR   InterPro; IPR024134; SOD_Cu/Zn_/chaperone.
DR   InterPro; IPR018152; SOD_Cu/Zn_BS.
DR   InterPro; IPR001424; SOD_Cu_Zn_dom.
DR   PANTHER; PTHR10003; PTHR10003; 1.
DR   Pfam; PF00080; Sod_Cu; 1.
DR   PRINTS; PR00068; CUZNDISMTASE.
DR   SUPFAM; SSF49329; SSF49329; 1.
DR   PROSITE; PS00087; SOD_CU_ZN_1; 1.
DR   PROSITE; PS00332; SOD_CU_ZN_2; 1.
PE   2: Evidence at transcript level;
KW   Antioxidant; Copper; Cytoplasm; Disulfide bond; Metal-binding;
KW   Oxidoreductase; Reference proteome; Zinc.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000250"
FT   CHAIN           2..152
FT                   /note="Superoxide dismutase [Cu-Zn] 4A"
FT                   /id="PRO_0000164142"
FT   BINDING         45
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000250"
FT   BINDING         47
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000250"
FT   BINDING         62
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000250"
FT   BINDING         62
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="structural"
FT                   /evidence="ECO:0000250"
FT   BINDING         70
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="structural"
FT                   /evidence="ECO:0000250"
FT   BINDING         79
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="structural"
FT                   /evidence="ECO:0000250"
FT   BINDING         82
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="structural"
FT                   /evidence="ECO:0000250"
FT   BINDING         119
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000250"
FT   DISULFID        56..145
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   152 AA;  15115 MW;  C1BF02656CD84AF2 CRC64;
     MVKAVAVLGS SEGVKGTIFF TQEGDGPTTV TGSVSGLKPG LHGFHVHALG DTTNGCMSTG
     PHYNPASKEH GAPEDENRHA GDLGNVTAGA DGVANINVTD SQIPLTGPNS IIGRAVVVHA
     DPDDLGKGGH ELSKSTGNAG GRVACGIIGL QG