ID   M3XGW9_LATCH            Unreviewed;       602 AA.
AC   M3XGW9;
DT   01-MAY-2013, integrated into UniProtKB/TrEMBL.
DT   01-MAY-2013, sequence version 1.
DT   27-MAR-2024, entry version 60.
DE   RecName: Full=Prostaglandin G/H synthase 2 {ECO:0000256|ARBA:ARBA00020406};
DE            EC=1.14.99.1 {ECO:0000256|ARBA:ARBA00012440};
DE   AltName: Full=Cyclooxygenase-2 {ECO:0000256|ARBA:ARBA00031216};
DE   AltName: Full=PHS II {ECO:0000256|ARBA:ARBA00030839};
DE   AltName: Full=Prostaglandin H2 synthase 2 {ECO:0000256|ARBA:ARBA00031793};
DE   AltName: Full=Prostaglandin-endoperoxide synthase 2 {ECO:0000256|ARBA:ARBA00033144};
GN   Name=PTGS2 {ECO:0000313|Ensembl:ENSLACP00000021975.1};
OS   Latimeria chalumnae (Coelacanth).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC   Coelacanthiformes; Coelacanthidae; Latimeria.
OX   NCBI_TaxID=7897 {ECO:0000313|Ensembl:ENSLACP00000021975.1, ECO:0000313|Proteomes:UP000008672};
RN   [1] {ECO:0000313|Proteomes:UP000008672}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Wild caught {ECO:0000313|Proteomes:UP000008672};
RA   Di Palma F., Alfoldi J., Johnson J., Berlin A., Gnerre S., Jaffe D.,
RA   MacCallum I., Young S., Walker B.J., Lander E., Lindblad-Toh K.;
RT   "The draft genome of Latimeria chalumnae.";
RL   Submitted (AUG-2011) to the EMBL/GenBank/DDBJ databases.
RN   [2] {ECO:0000313|Ensembl:ENSLACP00000021975.1}
RP   IDENTIFICATION.
RG   Ensembl;
RL   Submitted (NOV-2023) to UniProtKB.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(9Z,12Z)-octadecadienoate + AH2 + O2 = (13R)-hydroxy-(9Z,11E)-
CC         octadecadienoate + A + H2O; Xref=Rhea:RHEA:75455, ChEBI:CHEBI:13193,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15379, ChEBI:CHEBI:17499,
CC         ChEBI:CHEBI:30245, ChEBI:CHEBI:136655;
CC         Evidence={ECO:0000256|ARBA:ARBA00036409};
CC       PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:75456;
CC         Evidence={ECO:0000256|ARBA:ARBA00036409};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(9Z,12Z)-octadecadienoate + AH2 + O2 = (13S)-hydroxy-(9Z,11E)-
CC         octadecadienoate + A + H2O; Xref=Rhea:RHEA:75451, ChEBI:CHEBI:13193,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15379, ChEBI:CHEBI:17499,
CC         ChEBI:CHEBI:30245, ChEBI:CHEBI:90850;
CC         Evidence={ECO:0000256|ARBA:ARBA00036358};
CC       PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:75452;
CC         Evidence={ECO:0000256|ARBA:ARBA00036358};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(9Z,12Z)-octadecadienoate + AH2 + O2 = (9R)-hydroxy-(10E,12Z)-
CC         octadecadienoate + A + H2O; Xref=Rhea:RHEA:75447, ChEBI:CHEBI:13193,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15379, ChEBI:CHEBI:17499,
CC         ChEBI:CHEBI:30245, ChEBI:CHEBI:77895;
CC         Evidence={ECO:0000256|ARBA:ARBA00036313};
CC       PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:75448;
CC         Evidence={ECO:0000256|ARBA:ARBA00036313};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(9Z,12Z)-octadecadienoate + AH2 + O2 = (9S)-hydroxy-(10E,12Z)-
CC         octadecadienoate + A + H2O; Xref=Rhea:RHEA:75459, ChEBI:CHEBI:13193,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15379, ChEBI:CHEBI:17499,
CC         ChEBI:CHEBI:30245, ChEBI:CHEBI:77852;
CC         Evidence={ECO:0000256|ARBA:ARBA00035976};
CC       PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:75460;
CC         Evidence={ECO:0000256|ARBA:ARBA00035976};
CC   -!- COFACTOR:
CC       Name=heme b; Xref=ChEBI:CHEBI:60344;
CC         Evidence={ECO:0000256|ARBA:ARBA00001970};
CC   -!- PATHWAY: Lipid metabolism; prostaglandin biosynthesis.
CC       {ECO:0000256|ARBA:ARBA00004702}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000256|ARBA:ARBA00011738}.
CC   -!- SUBCELLULAR LOCATION: Endoplasmic reticulum membrane
CC       {ECO:0000256|ARBA:ARBA00004406}; Peripheral membrane protein
CC       {ECO:0000256|ARBA:ARBA00004406}. Membrane
CC       {ECO:0000256|ARBA:ARBA00004170}; Peripheral membrane protein
CC       {ECO:0000256|ARBA:ARBA00004170}. Microsome membrane
CC       {ECO:0000256|ARBA:ARBA00004174}; Peripheral membrane protein
CC       {ECO:0000256|ARBA:ARBA00004174}.
CC   -!- SIMILARITY: Belongs to the prostaglandin G/H synthase family.
CC       {ECO:0000256|ARBA:ARBA00008928}.
CC   -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC       feature annotation. {ECO:0000256|PROSITE-ProRule:PRU00076}.
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DR   EMBL; AFYH01205147; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR   RefSeq; XP_006009312.1; XM_006009250.2.
DR   AlphaFoldDB; M3XGW9; -.
DR   GlyCosmos; M3XGW9; 4 sites, No reported glycans.
DR   Ensembl; ENSLACT00000025312.1; ENSLACP00000021975.1; ENSLACG00000008168.2.
DR   GeneID; 102352257; -.
DR   CTD; 5743; -.
DR   GeneTree; ENSGT00390000010743; -.
DR   HOGENOM; CLU_022428_0_0_1; -.
DR   OrthoDB; 1086441at2759; -.
DR   UniPathway; UPA00662; -.
DR   Proteomes; UP000008672; Unassembled WGS sequence.
DR   Bgee; ENSLACG00000008168; Expressed in pectoral fin and 6 other cell types or tissues.
DR   GO; GO:0005789; C:endoplasmic reticulum membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0051213; F:dioxygenase activity; IEA:UniProtKB-KW.
DR   GO; GO:0020037; F:heme binding; IEA:InterPro.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0004601; F:peroxidase activity; IEA:UniProtKB-KW.
DR   GO; GO:0004666; F:prostaglandin-endoperoxide synthase activity; IEA:UniProtKB-EC.
DR   GO; GO:0001516; P:prostaglandin biosynthetic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0006979; P:response to oxidative stress; IEA:InterPro.
DR   CDD; cd00054; EGF_CA; 1.
DR   CDD; cd09816; prostaglandin_endoperoxide_synthase; 1.
DR   Gene3D; 1.10.640.10; Haem peroxidase domain superfamily, animal type; 1.
DR   Gene3D; 2.10.25.10; Laminin; 1.
DR   InterPro; IPR000742; EGF-like_dom.
DR   InterPro; IPR019791; Haem_peroxidase_animal.
DR   InterPro; IPR010255; Haem_peroxidase_sf.
DR   InterPro; IPR037120; Haem_peroxidase_sf_animal.
DR   PANTHER; PTHR11903; PROSTAGLANDIN G/H SYNTHASE; 1.
DR   PANTHER; PTHR11903:SF8; PROSTAGLANDIN G_H SYNTHASE 2; 1.
DR   Pfam; PF03098; An_peroxidase; 1.
DR   PRINTS; PR00457; ANPEROXIDASE.
DR   SUPFAM; SSF57196; EGF/Laminin; 1.
DR   SUPFAM; SSF48113; Heme-dependent peroxidases; 1.
DR   PROSITE; PS50026; EGF_3; 1.
DR   PROSITE; PS50292; PEROXIDASE_3; 1.
PE   3: Inferred from homology;
KW   Dioxygenase {ECO:0000256|ARBA:ARBA00022964};
KW   EGF-like domain {ECO:0000256|PROSITE-ProRule:PRU00076};
KW   Endoplasmic reticulum {ECO:0000256|ARBA:ARBA00022824};
KW   Fatty acid biosynthesis {ECO:0000256|ARBA:ARBA00023160};
KW   Fatty acid metabolism {ECO:0000256|ARBA:ARBA00022832};
KW   Heme {ECO:0000256|ARBA:ARBA00022617, ECO:0000256|PIRSR:PIRSR619791-2};
KW   Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|PIRSR:PIRSR619791-2};
KW   Lipid biosynthesis {ECO:0000256|ARBA:ARBA00022516};
KW   Lipid metabolism {ECO:0000256|ARBA:ARBA00023098};
KW   Metal-binding {ECO:0000256|PIRSR:PIRSR619791-2};
KW   Microsome {ECO:0000256|ARBA:ARBA00022848};
KW   Oxidoreductase {ECO:0000256|ARBA:ARBA00023002};
KW   Peroxidase {ECO:0000256|ARBA:ARBA00022559};
KW   Prostaglandin biosynthesis {ECO:0000256|ARBA:ARBA00022585};
KW   Prostaglandin metabolism {ECO:0000256|ARBA:ARBA00022501};
KW   Reference proteome {ECO:0000313|Proteomes:UP000008672}.
FT   DOMAIN          14..52
FT                   /note="EGF-like"
FT                   /evidence="ECO:0000259|PROSITE:PS50026"
FT   ACT_SITE        190
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR619791-1"
FT   ACT_SITE        368
FT                   /note="For cyclooxygenase activity"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR619791-1"
FT   BINDING         103
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR619791-2"
FT   BINDING         371
FT                   /ligand="heme b"
FT                   /ligand_id="ChEBI:CHEBI:60344"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR619791-2"
SQ   SEQUENCE   602 AA;  69051 MW;  8A572D3D34DC4E6D CRC64;
     MMTKLKVEGR QRLSTNPCCS NPCQNRGVCM TVGFDNYECD CTRTGFYGKN CTTPEFWTWV
     KRALKPSPNT VHYILTHYKG FWNIVNSIPF LRDAIMRYVL TSRSHLIDSP PTYNSHYDYK
     SWEAYSNLSY YTRTLPPVPE DCPTPMGVKG KNSLPDSKMI AEKFLLRRKF IPDPQGTSLM
     FAFFAQHFTH QFFKTDQIRG PAFTTGLGHG VDLNHIYGET LDRQHKLRLF KDGKLKYQMI
     NGEMYPPTVK DVQVAMTYPP HIAEDFKFAV GQEVFGLVPG LMMYSVIWLR EHNRVCDILK
     QEHPEWDDER LFQTTRLILI GETIKIVIED YVQHLSGYHF KLKFDPELLF HQQFQYQNRI
     AAEFNTLYHW HPLMPDSFLI QGKEYGYHQF LFNNSIVTEH GIRNLVESFS KQIAGRVAGG
     RNVAPGVLRV AIASIDQSRK MRYQSLNEYR KRFQMRPYKS FEDLTGEKEM AAELQELYGD
     VDAVELYPGL MVEKPRPGAI FGETMVEMGA PFSLKGLIGN PICSPEYWKP STFGGNVGFQ
     IVNTASLQKL VCSNVKGTCP FTSFHIPEPN PTKTSTSNAS TSNSALKDIN PSLLLKKHST
     EL
//