ID   SODE_DIRIM              Reviewed;         195 AA.
AC   P41974;
DT   01-NOV-1995, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1995, sequence version 1.
DT   03-AUG-2022, entry version 92.
DE   RecName: Full=Extracellular superoxide dismutase [Cu-Zn];
DE            Short=EC-SOD;
DE            EC=1.15.1.1;
DE   Flags: Precursor;
OS   Dirofilaria immitis (Canine heartworm).
OC   Eukaryota; Metazoa; Ecdysozoa; Nematoda; Chromadorea; Rhabditida;
OC   Spirurina; Spiruromorpha; Filarioidea; Onchocercidae; Dirofilaria.
OX   NCBI_TaxID=6287;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RA   James E.R., McLean D.C.;
RL   Submitted (SEP-1994) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Destroys radicals which are normally produced within the
CC       cells and which are toxic to biological systems. May act in the
CC       parasite defense by neutralizing superoxide generated by activated
CC       leukocytes, thus acting as both an antioxidant and an anti-inflammatory
CC       factor.
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   -!- SUBCELLULAR LOCATION: Secreted, extracellular space.
CC   -!- SIMILARITY: Belongs to the Cu-Zn superoxide dismutase family.
CC       {ECO:0000305}.
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DR   EMBL; U14994; AAA50247.1; -; mRNA.
DR   AlphaFoldDB; P41974; -.
DR   SMR; P41974; -.
DR   GO; GO:0005615; C:extracellular space; 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; PS00332; SOD_CU_ZN_2; 1.
PE   2: Evidence at transcript level;
KW   Antioxidant; Copper; Disulfide bond; Metal-binding; Oxidoreductase;
KW   Secreted; Signal; Zinc.
FT   SIGNAL          1..38
FT                   /evidence="ECO:0000255"
FT   CHAIN           39..195
FT                   /note="Extracellular superoxide dismutase [Cu-Zn]"
FT                   /id="PRO_0000032862"
FT   BINDING         83
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000250"
FT   BINDING         85
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000250"
FT   BINDING         100
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000250"
FT   BINDING         100
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="structural"
FT                   /evidence="ECO:0000250"
FT   BINDING         108
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="structural"
FT                   /evidence="ECO:0000250"
FT   BINDING         117
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="structural"
FT                   /evidence="ECO:0000250"
FT   BINDING         120
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="structural"
FT                   /evidence="ECO:0000250"
FT   BINDING         157
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000250"
FT   DISULFID        94..186
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   195 AA;  20794 MW;  A49FC6605837C44B CRC64;
     MMGSFIFLLS IIISINYINS LHTVHRSNIH RNMHNGGMPK KAVAVLKSDT VNGIIYFQQN
     NRASATTIYG TINGLTPGLH GFHIHQYGIK ANGCTSAAAH YNPFEKTHGR PTNNIKHIGD
     LRNIKAGADG VANVNIISNH IQLSGPLSVI GRSLVVHANP DDLGKGNGDA REESLKTGNA
     GSRIVCSIIG IAPST