COXX_RHIEC
ID COXX_RHIEC Reviewed; 316 AA.
AC Q2KBM1;
DT 08-APR-2008, integrated into UniProtKB/Swiss-Prot.
DT 07-MAR-2006, sequence version 1.
DT 25-MAY-2022, entry version 100.
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=RHE_CH00954;
OS Rhizobium etli (strain CFN 42 / ATCC 51251).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC Rhizobiaceae; Rhizobium/Agrobacterium group; Rhizobium.
OX NCBI_TaxID=347834;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CFN 42 / ATCC 51251;
RX PubMed=16505379; DOI=10.1073/pnas.0508502103;
RA Gonzalez V., Santamaria R.I., Bustos P., Hernandez-Gonzalez I.,
RA Medrano-Soto A., Moreno-Hagelsieb G., Janga S.C., Ramirez M.A.,
RA Jimenez-Jacinto V., Collado-Vides J., Davila G.;
RT "The partitioned Rhizobium etli genome: genetic and metabolic redundancy in
RT seven interacting replicons.";
RL Proc. Natl. Acad. Sci. U.S.A. 103:3834-3839(2006).
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; CP000133; ABC89765.1; -; Genomic_DNA.
DR RefSeq; WP_011424301.1; NC_007761.1.
DR AlphaFoldDB; Q2KBM1; -.
DR SMR; Q2KBM1; -.
DR STRING; 347834.RHE_CH00954; -.
DR EnsemblBacteria; ABC89765; ABC89765; RHE_CH00954.
DR GeneID; 61479407; -.
DR KEGG; ret:RHE_CH00954; -.
DR eggNOG; COG0109; Bacteria.
DR HOGENOM; CLU_029631_0_2_5; -.
DR OMA; QFFWQFP; -.
DR UniPathway; UPA00834; UER00712.
DR Proteomes; UP000001936; 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..316
FT /note="Protoheme IX farnesyltransferase"
FT /id="PRO_0000327129"
FT TRANSMEM 32..52
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 53..73
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 93..113
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 116..136
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 152..172
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 221..241
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 252..271
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 289..309
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
SQ SEQUENCE 316 AA; 33849 MW; 67AE097A7935AAC1 CRC64;
MTVIDNHEAL AEDGEMSEAS ARDYFELLKP RVMSLVVFTA FAGLVLAPGH INPVLGLIAI
LCIAVGAGAS GALNMWYDAD IDAIMSRTAK RPIPAGRIAP SEALAFGLVL SGFSVVILGL
AVNWLSAAIL AFTIFFYAVI YTMWLKRSTP QNIVIGGAAG AFPPMIGWAC VTNSVTIEST
VLFLIIFLWT PAHFWALALF KMRDYEAVGV PMLPNVSGER VTKHQIVAYA VLTAICAVLP
SFLGFASFGY GLVAAALGAI FVYCSIAVWR MPDGDLKMIP AKKLFAFSIF YLFAVFSALM
IDRLAAILVS QAGGSF