ID   SODC2_MESCR             Reviewed;         156 AA.
AC   O49044;
DT   15-JUL-1998, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-1998, sequence version 1.
DT   03-AUG-2022, entry version 99.
DE   RecName: Full=Superoxide dismutase [Cu-Zn] 2;
DE            EC=1.15.1.1;
GN   Name=SODCC.2; Synonyms=SOD2;
OS   Mesembryanthemum crystallinum (Common ice plant) (Cryophytum crystallinum).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   Caryophyllales; Aizoaceae; Mesembryanthemum;
OC   Mesembryanthemum subgen. Cryophytum.
OX   NCBI_TaxID=3544;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RA   Emig I., Owens K., Ratajczak R., Luettge U., Cushman J.C.;
RT   "Isolation of a full-length cDNA clone encoding a cytosolic Cu/Zn
RT   superoxide dismutase from the common ice plant, Mesembryanthemum
RT   crystallinum L.";
RL   (er) Plant Gene Register PGR98-020(1998).
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. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm.
CC   -!- SIMILARITY: Belongs to the Cu-Zn superoxide dismutase family.
CC       {ECO:0000305}.
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DR   EMBL; AF034832; AAC04614.1; -; mRNA.
DR   PIR; T12204; T12204.
DR   AlphaFoldDB; O49044; -.
DR   SMR; O49044; -.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0004784; F:superoxide dismutase activity; IEA:UniProtKB-EC.
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; Zinc.
FT   CHAIN           1..156
FT                   /note="Superoxide dismutase [Cu-Zn] 2"
FT                   /id="PRO_0000164145"
FT   BINDING         47
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000250"
FT   BINDING         49
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000250"
FT   BINDING         64
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000250"
FT   BINDING         64
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="structural"
FT                   /evidence="ECO:0000250"
FT   BINDING         72
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="structural"
FT                   /evidence="ECO:0000250"
FT   BINDING         81
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="structural"
FT                   /evidence="ECO:0000250"
FT   BINDING         84
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="structural"
FT                   /evidence="ECO:0000250"
FT   BINDING         121
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000250"
FT   DISULFID        58..147
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   156 AA;  16050 MW;  B0C783CF072CECBD CRC64;
     MGVIKAVAVI NGNNNVKGSL QFIQDSTGVT HVKGRITGLT PGLHGFHIHA LGDTTNGCNS
     TGPHFNPLKK DHGAPFDTER HAGDLGNVVA GADGVAEVSV RDTQIPLSGQ HSILGRAVVV
     HADQDDLGRT GHELSKTTGN AGARVRCGII GLQASV