COXX_RUEST
ID COXX_RUEST Reviewed; 313 AA.
AC Q1GE49;
DT 08-APR-2008, integrated into UniProtKB/Swiss-Prot.
DT 27-JUN-2006, sequence version 1.
DT 25-MAY-2022, entry version 99.
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=TM1040_2335;
OS Ruegeria sp. (strain TM1040) (Silicibacter sp.).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales;
OC Roseobacteraceae; Ruegeria; unclassified Ruegeria.
OX NCBI_TaxID=292414;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=TM1040;
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 Brettin T., Bruce D., Han C., Tapia R., Goodwin L., Thompson L.S.,
RA Gilna P., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N., Kim E.,
RA Belas R., Moran M.A., Buchan A., Gonzalez J.M., Schell M.A., Sun F.,
RA Richardson P.;
RT "Complete sequence of chromosome of Silicibacter sp. TM1040.";
RL Submitted (MAY-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 -!- SUBUNIT: Interacts with CtaA. {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; CP000377; ABF65067.1; -; Genomic_DNA.
DR RefSeq; WP_011539655.1; NC_008044.1.
DR AlphaFoldDB; Q1GE49; -.
DR SMR; Q1GE49; -.
DR STRING; 292414.TM1040_2335; -.
DR EnsemblBacteria; ABF65067; ABF65067; TM1040_2335.
DR KEGG; sit:TM1040_2335; -.
DR eggNOG; COG0109; Bacteria.
DR HOGENOM; CLU_029631_0_2_5; -.
DR OMA; MYLKRAT; -.
DR OrthoDB; 1875497at2; -.
DR UniPathway; UPA00834; UER00712.
DR Proteomes; UP000000636; 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; 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 Reference proteome; Transferase; Transmembrane; Transmembrane helix.
FT CHAIN 1..313
FT /note="Protoheme IX farnesyltransferase"
FT /id="PRO_0000327150"
FT TRANSMEM 22..42
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 46..66
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 121..141
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 150..170
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 177..197
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 223..243
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 246..266
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 284..304
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
SQ SEQUENCE 313 AA; 34147 MW; 936F031A0230AF4C CRC64;
MTDASINASM TREEEASLGD YFALLKPRVM SLVVFTAFVG LMAAPIGVHP VIGFCAILFI
AIGGGASGAL NMWWDADIDQ VMKRTKGRPI PAGKVDKGEA LSLGLALSGL SVIMLALATN
VFAGAFLAFT IFFYVVIYTM WLKRATPQNI VIGGAAGAFP PVIGWIAATG SMSVEPWLMF
ALTFLWTPPH FWALALFMRN DYDMADVPML TVTHGRRSTR KHILVYTVIL AAFALTTAFT
SVGGPIYLTT AVVLNALFLK GAVQIWRRDE EICESDNFKI ERSFFKLSLL YLFLHFGAIL
AEALLKPYGL GGW
