ID   HO_PORPU                Reviewed;         236 AA.
AC   P51271;
DT   01-OCT-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1996, sequence version 1.
DT   16-JUN-2009, entry version 45.
DE   RecName: Full=Heme oxygenase;
DE            EC=1.14.99.3;
GN   Name=pbsA;
OS   Porphyra purpurea.
OG   Plastid; Chloroplast.
OC   Eukaryota; Rhodophyta; Bangiophyceae; Bangiales; Bangiaceae; Porphyra.
OX   NCBI_TaxID=2787;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Avonport;
RA   Reith M.E., Munholland J.;
RT   "Complete nucleotide sequence of the Porphyra purpurea chloroplast
RT   genome.";
RL   Plant Mol. Biol. Rep. 13:333-335(1995).
CC   -!- FUNCTION: Catalyzes the opening of the heme ring with the release
CC       of iron. Key enzyme in the synthesis of the chromophoric part of
CC       the photosynthetic antennae (By similarity).
CC   -!- CATALYTIC ACTIVITY: Heme + 3 AH(2) + 3 O(2) = biliverdin + Fe(2+)
CC       + CO + 3 A + 3 H(2)O.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast.
CC   -!- SIMILARITY: Belongs to the heme oxygenase family.
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DR   EMBL; U38804; AAC08157.1; -; Genomic_DNA.
DR   PIR; S73192; S73192.
DR   RefSeq; NP_053881.1; -.
DR   HSSP; P06762; 1IRM.
DR   GeneID; 809900; -.
DR   BRENDA; 1.14.99.3; 279956.
DR   GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
DR   GO; GO:0004392; F:heme oxygenase (decyclizing) activity; IEA:EC.
DR   GO; GO:0005506; F:iron ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0006788; P:heme oxidation; IEA:InterPro.
DR   GO; GO:0055114; P:oxidation reduction; IEA:UniProtKB-KW.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR   InterPro; IPR002051; Haem_Oase.
DR   InterPro; IPR016053; Haem_Oase-like.
DR   InterPro; IPR016084; Haem_Oase-like_multi-hlx.
DR   InterPro; IPR018207; Haem_oxygenase_CS.
DR   Gene3D; G3DSA:1.20.910.10; Haem_Oase-like_multi-hlx; 1.
DR   PANTHER; PTHR10720; Haem_Oase; 1.
DR   Pfam; PF01126; Heme_oxygenase; 1.
DR   PIRSF; PIRSF000343; Haem_Oase; 1.
DR   PRINTS; PR00088; HAEMOXYGNASE.
DR   PROSITE; PS00593; HEME_OXYGENASE; 1.
PE   3: Inferred from homology;
KW   Chloroplast; Heme; Iron; Metal-binding; Oxidoreductase;
KW   Photosynthesis; Plastid.
FT   CHAIN         1    236       Heme oxygenase.
FT                                /FTId=PRO_0000209699.
FT   METAL        17     17       Iron (heme axial ligand) (By similarity).
SQ   SEQUENCE   236 AA;  26752 MW;  8C512D8C4DA2F0ED CRC64;
     MVSSLANELR EGTTKSHSMA ENVSFVKSFL GGVVDKKSYR KLIANLYFVY SAIEEEILLN
     KDHPAIKPIY FTELNRKTSL AKDLNYYYGP DWLNIIEPSS ATQVYVNRIH NIGNKQPELL
     VAHAYTRYLG DLSGGQVLKK IARGAMNLSD ERGTKFYDFD EIEDDKIFKN NYRSALDTIP
     LSDEQVQNVV AEANISFTLN MKMFEELNSS IVKIITMIIV STVRKFTLKS ILATAD
//