ID   COXX_MYCUA              Reviewed;         324 AA.
AC   A0PPP7;
DT   08-APR-2008, integrated into UniProtKB/Swiss-Prot.
DT   09-JAN-2007, sequence version 1.
DT   25-MAY-2022, entry version 84.
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=MUL_1845;
OS   Mycobacterium ulcerans (strain Agy99).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycobacterium.
OX   NCBI_TaxID=362242;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Agy99;
RX   PubMed=17210928; DOI=10.1101/gr.5942807;
RA   Stinear T.P., Seemann T., Pidot S., Frigui W., Reysset G., Garnier T.,
RA   Meurice G., Simon D., Bouchier C., Ma L., Tichit M., Porter J.L., Ryan J.,
RA   Johnson P.D.R., Davies J.K., Jenkin G.A., Small P.L.C., Jones L.M.,
RA   Tekaia F., Laval F., Daffe M., Parkhill J., Cole S.T.;
RT   "Reductive evolution and niche adaptation inferred from the genome of
RT   Mycobacterium ulcerans, the causative agent of Buruli ulcer.";
RL   Genome Res. 17:192-200(2007).
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 membrane {ECO:0000255|HAMAP-Rule:MF_00154};
CC       Multi-pass membrane protein {ECO:0000255|HAMAP-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; CP000325; ABL04316.1; -; Genomic_DNA.
DR   AlphaFoldDB; A0PPP7; -.
DR   SMR; A0PPP7; -.
DR   STRING; 362242.MUL_1845; -.
DR   EnsemblBacteria; ABL04316; ABL04316; MUL_1845.
DR   KEGG; mul:MUL_1845; -.
DR   eggNOG; COG0109; Bacteria.
DR   HOGENOM; CLU_029631_0_1_11; -.
DR   OMA; QFFWQFP; -.
DR   UniPathway; UPA00834; UER00712.
DR   Proteomes; UP000000765; Chromosome.
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; IPR044878; UbiA_sf.
DR   PANTHER; PTHR43448; PTHR43448; 1.
DR   Pfam; PF01040; UbiA; 1.
DR   TIGRFAMs; TIGR01473; cyoE_ctaB; 1.
PE   3: Inferred from homology;
KW   Cell membrane; Heme biosynthesis; Membrane; Transferase; Transmembrane;
KW   Transmembrane helix.
FT   CHAIN           1..324
FT                   /note="Protoheme IX farnesyltransferase"
FT                   /id="PRO_0000327092"
FT   TRANSMEM        65..85
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT   TRANSMEM        117..137
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT   TRANSMEM        139..159
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT   TRANSMEM        164..184
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT   TRANSMEM        185..205
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT   TRANSMEM        237..257
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT   TRANSMEM        258..278
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT   TRANSMEM        304..324
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT   REGION          1..25
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   324 AA;  34706 MW;  5F40227FAD59EB70 CRC64;
     MSVHGRVAPG QVAGTARQRS EPGTGTWRSR VLGTVLAYLA LTKPRVIELL LVTAIPAMLL
     ADRGAVHPLI IANTLIGGMM AAAGANTLNC VADADIDKVM NRTARRPLAR AAVPTRSALI
     FGLALTVISF FWLWLSANLL SGLLALATVA FYVFIYTLLL KRRTSQNVVW GGAAGCMPVM
     IGWSAVTGTL AWPALAMFAI IFFWTPPHTW ALAMRYKDDY KEAGVPMLPA VATERQVTKQ
     ILIYTWLTVL ATLALTPAAG WLYAAVAAVA GAWFLTMAHQ LYAGVRAGEA VKPLRLFLQS
     NNYLALVFCA LAVDSAIGLP TLLG