ID   HEM6_PROM1              Reviewed;         348 AA.
AC   A2C524;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   20-FEB-2007, sequence version 1.
DT   02-SEP-2026, entry version 98.
DE   RecName: Full=Oxygen-dependent coproporphyrinogen-III oxidase {ECO:0000255|HAMAP-Rule:MF_00333};
DE            Short=CPO {ECO:0000255|HAMAP-Rule:MF_00333};
DE            Short=Coprogen oxidase {ECO:0000255|HAMAP-Rule:MF_00333};
DE            Short=Coproporphyrinogenase {ECO:0000255|HAMAP-Rule:MF_00333};
DE            EC=1.3.3.3 {ECO:0000255|HAMAP-Rule:MF_00333};
GN   Name=hemF {ECO:0000255|HAMAP-Rule:MF_00333};
GN   OrderedLocusNames=NATL1_20281;
OS   Prochlorococcus marinus (strain NATL1A).
OC   Bacteria; Bacillati; Cyanobacteriota; Cyanophyceae; Synechococcales;
OC   Prochlorococcaceae; Prochlorococcus.
OX   NCBI_TaxID=167555;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NATL1A;
RX   PubMed=18159947; DOI=10.1371/journal.pgen.0030231;
RA   Kettler G.C., Martiny A.C., Huang K., Zucker J., Coleman M.L., Rodrigue S.,
RA   Chen F., Lapidus A., Ferriera S., Johnson J., Steglich C., Church G.M.,
RA   Richardson P., Chisholm S.W.;
RT   "Patterns and implications of gene gain and loss in the evolution of
RT   Prochlorococcus.";
RL   PLoS Genet. 3:2515-2528(2007).
CC   -!- FUNCTION: Involved in the heme and chlorophyll biosynthesis. Catalyzes
CC       the aerobic oxidative decarboxylation of propionate groups of rings A
CC       and B of coproporphyrinogen-III to yield the vinyl groups in
CC       protoporphyrinogen-IX. {ECO:0000255|HAMAP-Rule:MF_00333}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=coproporphyrinogen III + O2 + 2 H(+) = protoporphyrinogen IX +
CC         2 CO2 + 2 H2O; Xref=Rhea:RHEA:18257, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:15379, ChEBI:CHEBI:16526,
CC         ChEBI:CHEBI:57307, ChEBI:CHEBI:57309; EC=1.3.3.3;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00333};
CC   -!- COFACTOR:
CC       Name=a divalent metal cation; Xref=ChEBI:CHEBI:60240;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00333};
CC   -!- PATHWAY: Porphyrin-containing compound metabolism; protoporphyrin-IX
CC       biosynthesis; protoporphyrinogen-IX from coproporphyrinogen-III (O2
CC       route): step 1/1. {ECO:0000255|HAMAP-Rule:MF_00333}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00333}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00333}.
CC   -!- SIMILARITY: Belongs to the aerobic coproporphyrinogen-III oxidase
CC       family. {ECO:0000255|HAMAP-Rule:MF_00333}.
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DR   EMBL; CP000553; ABM76584.1; -; Genomic_DNA.
DR   RefSeq; WP_011824535.1; NC_008819.1.
DR   AlphaFoldDB; A2C524; -.
DR   SMR; A2C524; -.
DR   KEGG; pme:NATL1_20281; -.
DR   eggNOG; COG0408; Bacteria.
DR   HOGENOM; CLU_026169_0_1_3; -.
DR   UniPathway; UPA00251; UER00322.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0004109; F:coproporphyrinogen oxidase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0042803; F:protein homodimerization activity; ISS:UniProtKB.
DR   GO; GO:0015995; P:chlorophyll biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0006783; P:heme biosynthetic process; IEA:UniProtKB-UniRule.
DR   FunFam; 3.40.1500.10:FF:000007; Oxygen-dependent coproporphyrinogen-III oxidase; 1.
DR   Gene3D; 3.40.1500.10; Coproporphyrinogen III oxidase, aerobic; 1.
DR   HAMAP; MF_00333; Coprogen_oxidas; 1.
DR   InterPro; IPR001260; Coprogen_oxidase_aer.
DR   InterPro; IPR036406; Coprogen_oxidase_aer_sf.
DR   InterPro; IPR018375; Coprogen_oxidase_CS.
DR   NCBIfam; NF003727; PRK05330.1; 1.
DR   PANTHER; PTHR10755; COPROPORPHYRINOGEN III OXIDASE, MITOCHONDRIAL; 1.
DR   PANTHER; PTHR10755:SF0; OXYGEN-DEPENDENT COPROPORPHYRINOGEN-III OXIDASE, MITOCHONDRIAL; 1.
DR   Pfam; PF01218; Coprogen_oxidas; 1.
DR   PIRSF; PIRSF000166; Coproporphyri_ox; 1.
DR   PRINTS; PR00073; COPRGNOXDASE.
DR   SUPFAM; SSF102886; Coproporphyrinogen III oxidase; 1.
DR   PROSITE; PS01021; COPROGEN_OXIDASE; 1.
PE   3: Inferred from homology;
KW   Chlorophyll biosynthesis; Cytoplasm; Heme biosynthesis; Metal-binding;
KW   Oxidoreductase; Porphyrin biosynthesis.
FT   CHAIN           1..348
FT                   /note="Oxygen-dependent coproporphyrinogen-III oxidase"
FT                   /id="PRO_1000019477"
FT   REGION          272..307
FT                   /note="Important for dimerization"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00333"
FT   ACT_SITE        118
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00333"
FT   BINDING         104
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00333"
FT   BINDING         108
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00333"
FT   BINDING         118
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00333"
FT   BINDING         120..122
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00333"
FT   BINDING         152
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00333"
FT   BINDING         182
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00333"
FT   SITE            182
FT                   /note="Important for dimerization"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00333"
SQ   SEQUENCE   348 AA;  39803 MW;  6BDA2A3F6DA60BAA CRC64;
     MSSSQDKANL PANNSRARAK KLVLELQDEI CAGLETIDGE GKFLEESWER PEGGGGRSRV
     LKDGKIFEQG GVNFSEVHGN ELPPSIISQR PEAKGHSWFA TGTSMVLHPK NPYIPTVHLN
     YRYFEAGPVW WFGGGADLTP FYPYLSDTRH FHSCHKNACD TIDKDLHKVF KPWCDEYFFL
     KHRNETRGVG GIFYDYQDGS GLLYKGQNAN GKASKIAKEL GEYSLNWENL FSLAKACGQA
     FLPSYEPIIK KRKNQSFSTK ERDFQLYRRG RYAEFNLVWD RGTIFGLQTN GRTESILMSL
     PPLARWEYGY KPEENSREAL LTDLFTKPQD WFTDKSLEKR CLTHQALD
//