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COXX_RHOPB
ID   COXX_RHOPB              Reviewed;         313 AA.
AC   Q20X25;
DT   08-APR-2008, integrated into UniProtKB/Swiss-Prot.
DT   18-APR-2006, sequence version 1.
DT   25-MAY-2022, entry version 85.
DE   RecName: Full=Protoheme IX farnesyltransferase {ECO:0000255|HAMAP-Rule:MF_00154};
DE            EC=2.5.1.141 {ECO:0000255|HAMAP-Rule:MF_00154};
DE   AltName: Full=Heme B farnesyltransferase {ECO:0000255|HAMAP-Rule:MF_00154};
DE   AltName: Full=Heme O synthase {ECO:0000255|HAMAP-Rule:MF_00154};
GN   Name=ctaB {ECO:0000255|HAMAP-Rule:MF_00154}; OrderedLocusNames=RPC_4789;
OS   Rhodopseudomonas palustris (strain BisB18).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Bradyrhizobiaceae; Rhodopseudomonas.
OX   NCBI_TaxID=316056;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=BisB18;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA   Chain P., Malfatti S., Shin M., Vergez L., Schmutz J., Larimer F., Land M.,
RA   Hauser L., Pelletier D.A., Kyrpides N., Anderson I., Oda Y., Harwood C.S.,
RA   Richardson P.;
RT   "Complete sequence of Rhodopseudomonas palustris BisB18.";
RL   Submitted (MAR-2006) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Converts heme B (protoheme IX) to heme O by substitution of
CC       the vinyl group on carbon 2 of heme B porphyrin ring with a
CC       hydroxyethyl farnesyl side group. {ECO:0000255|HAMAP-Rule:MF_00154}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(2E,6E)-farnesyl diphosphate + H2O + heme b = diphosphate +
CC         Fe(II)-heme o; Xref=Rhea:RHEA:28070, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:33019, ChEBI:CHEBI:60344, ChEBI:CHEBI:60530,
CC         ChEBI:CHEBI:175763; EC=2.5.1.141; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00154};
CC   -!- PATHWAY: Porphyrin-containing compound metabolism; heme O biosynthesis;
CC       heme O from protoheme: step 1/1. {ECO:0000255|HAMAP-Rule:MF_00154}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_00154}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_00154}.
CC   -!- MISCELLANEOUS: Carbon 2 of the heme B porphyrin ring is defined
CC       according to the Fischer nomenclature. {ECO:0000255|HAMAP-
CC       Rule:MF_00154}.
CC   -!- SIMILARITY: Belongs to the UbiA prenyltransferase family. Protoheme IX
CC       farnesyltransferase subfamily. {ECO:0000255|HAMAP-Rule:MF_00154}.
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DR   EMBL; CP000301; ABD90311.1; -; Genomic_DNA.
DR   RefSeq; WP_011475188.1; NC_007925.1.
DR   AlphaFoldDB; Q20X25; -.
DR   SMR; Q20X25; -.
DR   STRING; 316056.RPC_4789; -.
DR   EnsemblBacteria; ABD90311; ABD90311; RPC_4789.
DR   KEGG; rpc:RPC_4789; -.
DR   eggNOG; COG0109; Bacteria.
DR   HOGENOM; CLU_029631_0_2_5; -.
DR   OMA; QFFWQFP; -.
DR   OrthoDB; 1875497at2; -.
DR   UniPathway; UPA00834; UER00712.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0008495; F:protoheme IX farnesyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0048034; P:heme O biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd13957; PT_UbiA_Cox10; 1.
DR   Gene3D; 1.10.357.140; -; 1.
DR   HAMAP; MF_00154; CyoE_CtaB; 1.
DR   InterPro; IPR006369; Protohaem_IX_farnesylTrfase.
DR   InterPro; IPR000537; UbiA_prenyltransferase.
DR   InterPro; IPR030470; UbiA_prenylTrfase_CS.
DR   InterPro; IPR044878; UbiA_sf.
DR   PANTHER; PTHR43448; PTHR43448; 1.
DR   Pfam; PF01040; UbiA; 1.
DR   TIGRFAMs; TIGR01473; cyoE_ctaB; 1.
DR   PROSITE; PS00943; UBIA; 1.
PE   3: Inferred from homology;
KW   Cell inner membrane; Cell membrane; Heme biosynthesis; Membrane;
KW   Transferase; Transmembrane; Transmembrane helix.
FT   CHAIN           1..313
FT                   /note="Protoheme IX farnesyltransferase"
FT                   /id="PRO_0000327141"
FT   TRANSMEM        35..55
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT   TRANSMEM        56..76
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT   TRANSMEM        98..118
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT   TRANSMEM        120..140
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT   TRANSMEM        153..173
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT   TRANSMEM        180..200
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT   TRANSMEM        226..246
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT   TRANSMEM        248..268
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT   TRANSMEM        285..305
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
SQ   SEQUENCE   313 AA;  33854 MW;  FC92B0A812DC4A4F CRC64;
     MSVVESHDIE FAAPRISEAS VADYIALLKP RVMSLVIFTA LVGLLLAPGY IHPVLAFTSI
     LCIAVGAGAS GALNMWYEDD IDAKMTRTAN RPIPRGRVSK PEALTFGLVL SFFSVVTLGI
     LVNWFAAALL AFTIFFYVVI YTIWLKRWTA QNIVIGGAAG ALPPVVAWAA AAGSLSVEPM
     LLFAIIFFWT PPHFWALALF RAGDYANAGV PMLPVTAGPD ATRLSILLYT IVLVAVAFAP
     WPLGYFDAIY GITSLALGGW MLLLTLRVYR LRHGSAALRA SRSLFKFSIL YLFALFAVLL
     LEVIVRGVIG ALA
 
 
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