HEMJ_RICPR
ID HEMJ_RICPR Reviewed; 145 AA.
AC Q9ZC85;
DT 30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT 01-MAY-1999, sequence version 1.
DT 03-AUG-2022, entry version 98.
DE RecName: Full=Protoporphyrinogen IX oxidase {ECO:0000250|UniProtKB:P72793};
DE Short=PPO {ECO:0000250|UniProtKB:P72793};
DE EC=1.3.99.- {ECO:0000250|UniProtKB:P72793};
GN OrderedLocusNames=RP883;
OS Rickettsia prowazekii (strain Madrid E).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales;
OC Rickettsiaceae; Rickettsieae; Rickettsia; typhus group.
OX NCBI_TaxID=272947;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Madrid E;
RX PubMed=9823893; DOI=10.1038/24094;
RA Andersson S.G.E., Zomorodipour A., Andersson J.O., Sicheritz-Ponten T.,
RA Alsmark U.C.M., Podowski R.M., Naeslund A.K., Eriksson A.-S., Winkler H.H.,
RA Kurland C.G.;
RT "The genome sequence of Rickettsia prowazekii and the origin of
RT mitochondria.";
RL Nature 396:133-140(1998).
CC -!- FUNCTION: Catalyzes the oxidation of protoporphyrinogen IX to
CC protoporphyrin IX. Is involved in the biosynthesis of tetrapyrrole
CC molecules like heme. Does not use oxygen or artificial electron
CC acceptors such as menadione or benzoquinone.
CC {ECO:0000250|UniProtKB:P72793}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=3 A + protoporphyrinogen IX = 3 AH2 + protoporphyrin IX;
CC Xref=Rhea:RHEA:62000, ChEBI:CHEBI:13193, ChEBI:CHEBI:17499,
CC ChEBI:CHEBI:57306, ChEBI:CHEBI:57307;
CC Evidence={ECO:0000250|UniProtKB:P72793};
CC -!- COFACTOR:
CC Name=heme b; Xref=ChEBI:CHEBI:60344;
CC Evidence={ECO:0000250|UniProtKB:P72793};
CC Note=Binds 1 heme b (iron(II)-protoporphyrin IX) group per subunit.
CC {ECO:0000250|UniProtKB:P72793};
CC -!- PATHWAY: Porphyrin-containing compound metabolism; protoporphyrin-IX
CC biosynthesis; protoporphyrin-IX from protoporphyrinogen-IX: step 1/1.
CC {ECO:0000250|UniProtKB:P72793}.
CC -!- SUBUNIT: Homodimer. {ECO:0000250|UniProtKB:P72793}.
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000250|UniProtKB:P72793};
CC Multi-pass membrane protein {ECO:0000255}.
CC -!- SIMILARITY: Belongs to the HemJ family. {ECO:0000255|HAMAP-
CC Rule:MF_02239, ECO:0000305}.
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DR EMBL; AJ235273; CAA15305.1; -; Genomic_DNA.
DR PIR; A71651; A71651.
DR RefSeq; NP_221229.1; NC_000963.1.
DR RefSeq; WP_004599693.1; NC_000963.1.
DR AlphaFoldDB; Q9ZC85; -.
DR STRING; 272947.RP883; -.
DR EnsemblBacteria; CAA15305; CAA15305; CAA15305.
DR GeneID; 57570006; -.
DR KEGG; rpr:RP883; -.
DR PATRIC; fig|272947.5.peg.923; -.
DR eggNOG; COG1981; Bacteria.
DR HOGENOM; CLU_125006_1_0_5; -.
DR OMA; VRLFIYH; -.
DR UniPathway; UPA00251; UER00324.
DR Proteomes; UP000002480; Chromosome.
DR GO; GO:0005887; C:integral component of plasma membrane; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0070818; F:protoporphyrinogen oxidase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006782; P:protoporphyrinogen IX biosynthetic process; IEA:UniProtKB-UniPathway.
DR HAMAP; MF_02239; HemJ; 1.
DR InterPro; IPR005265; HemJ-like.
DR PANTHER; PTHR40255; PTHR40255; 1.
DR Pfam; PF03653; UPF0093; 1.
DR PIRSF; PIRSF004638; UCP004638; 1.
DR TIGRFAMs; TIGR00701; TIGR00701; 1.
PE 3: Inferred from homology;
KW Cell membrane; Heme; Iron; Membrane; Metal-binding; Oxidoreductase;
KW Reference proteome; Transmembrane; Transmembrane helix.
FT CHAIN 1..145
FT /note="Protoporphyrinogen IX oxidase"
FT /id="PRO_0000217661"
FT TRANSMEM 6..26
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 61..81
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 83..103
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 123..143
FT /note="Helical"
FT /evidence="ECO:0000255"
FT BINDING 12
FT /ligand="heme"
FT /ligand_id="ChEBI:CHEBI:30413"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT /evidence="ECO:0000250|UniProtKB:P72793"
FT BINDING 88
FT /ligand="heme"
FT /ligand_id="ChEBI:CHEBI:30413"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT /evidence="ECO:0000250|UniProtKB:P72793"
SQ SEQUENCE 145 AA; 16915 MW; 8808506DA34F9612 CRC64;
MESYYLWFKS AHLISAICWM AGLLYLPRIY VYHTKAKIGS ELDSTLQVME LKLLRFIMNP
AMISTFIFGL INAHIYGFVA LDTWFQFKMF AVLILVIFHG LLARWRKDFA KGKNVHSKKF
YRIVNEIPAI CMVIAVIMVI VKPFD