COXX_SINFN
ID COXX_SINFN Reviewed; 318 AA.
AC C3MHJ3;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 16-JUN-2009, sequence version 1.
DT 25-MAY-2022, entry version 77.
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=NGR_c05250;
OS Sinorhizobium fredii (strain NBRC 101917 / NGR234).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC Rhizobiaceae; Sinorhizobium/Ensifer group; Sinorhizobium.
OX NCBI_TaxID=394;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NBRC 101917 / NGR234;
RX PubMed=19376903; DOI=10.1128/aem.00515-09;
RA Schmeisser C., Liesegang H., Krysciak D., Bakkou N., Le Quere A.,
RA Wollherr A., Heinemeyer I., Morgenstern B., Pommerening-Roeser A.,
RA Flores M., Palacios R., Brenner S., Gottschalk G., Schmitz R.A.,
RA Broughton W.J., Perret X., Strittmatter A.W., Streit W.R.;
RT "Rhizobium sp. strain NGR234 possesses a remarkable number of secretion
RT systems.";
RL Appl. Environ. Microbiol. 75:4035-4045(2009).
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; CP001389; ACP24321.1; -; Genomic_DNA.
DR RefSeq; WP_012707106.1; NC_012587.1.
DR RefSeq; YP_002825074.1; NC_012587.1.
DR AlphaFoldDB; C3MHJ3; -.
DR SMR; C3MHJ3; -.
DR STRING; 394.NGR_c05250; -.
DR EnsemblBacteria; ACP24321; ACP24321; NGR_c05250.
DR KEGG; rhi:NGR_c05250; -.
DR PATRIC; fig|394.7.peg.3338; -.
DR eggNOG; COG0109; Bacteria.
DR HOGENOM; CLU_029631_0_2_5; -.
DR OMA; QFFWQFP; -.
DR OrthoDB; 1875497at2; -.
DR UniPathway; UPA00834; UER00712.
DR Proteomes; UP000001054; 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..318
FT /note="Protoheme IX farnesyltransferase"
FT /id="PRO_1000199658"
FT TRANSMEM 34..54
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 55..75
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 95..115
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 118..138
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 155..175
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 182..202
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 228..250
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 254..273
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 287..307
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
SQ SEQUENCE 318 AA; 34015 MW; 3A323D04C54E185B CRC64;
MTLIDNHEAV GMEGVPRLSE ASARDYFELL KPRVMSLVVF TAFAGLVLAP GQINPVIGFI
AILCIAIGAG ASGALNMWYD ADIDAVMSRT AKRPIPAGKI LPQEALAFGL TLSAFSVIIL
GLAVNWLAAG LLAFTIFFYV VIYTMWLKRS TPQNIVIGGA AGAFPPMIGW ACVTGGVSVE
SIVLFLIIFL WTPAHFWALA LFKMGDYGAV GVPMMPNVCG EATTKRQIVV YALLTALSGI
CPTLLGFASL GYGAFATALG LGFIWYSLAV LRMPEADKRM LPAKKLFAFS IAYLFAIFSA
LLVDYMIAHV WLDAGGII