COXX_ACIC1
ID COXX_ACIC1 Reviewed; 307 AA.
AC A0LTZ0;
DT 08-APR-2008, integrated into UniProtKB/Swiss-Prot.
DT 12-DEC-2006, sequence version 1.
DT 03-AUG-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=Acel_1128;
OS Acidothermus cellulolyticus (strain ATCC 43068 / DSM 8971 / 11B).
OC Bacteria; Actinobacteria; Acidothermales; Acidothermaceae; Acidothermus.
OX NCBI_TaxID=351607;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 43068 / DSM 8971 / 11B;
RX PubMed=19270083; DOI=10.1101/gr.084848.108;
RA Barabote R.D., Xie G., Leu D.H., Normand P., Necsulea A., Daubin V.,
RA Medigue C., Adney W.S., Xu X.C., Lapidus A., Parales R.E., Detter C.,
RA Pujic P., Bruce D., Lavire C., Challacombe J.F., Brettin T.S., Berry A.M.;
RT "Complete genome of the cellulolytic thermophile Acidothermus
RT cellulolyticus 11B provides insights into its ecophysiological and
RT evolutionary adaptations.";
RL Genome Res. 19:1033-1043(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 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; CP000481; ABK52900.1; -; Genomic_DNA.
DR RefSeq; WP_011719963.1; NC_008578.1.
DR AlphaFoldDB; A0LTZ0; -.
DR SMR; A0LTZ0; -.
DR STRING; 351607.Acel_1128; -.
DR EnsemblBacteria; ABK52900; ABK52900; Acel_1128.
DR KEGG; ace:Acel_1128; -.
DR eggNOG; COG0109; Bacteria.
DR HOGENOM; CLU_029631_0_1_11; -.
DR OMA; QFFWQFP; -.
DR OrthoDB; 1875497at2; -.
DR UniPathway; UPA00834; UER00712.
DR Proteomes; UP000008221; 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; Reference proteome;
KW Transferase; Transmembrane; Transmembrane helix.
FT CHAIN 1..307
FT /note="Protoheme IX farnesyltransferase"
FT /id="PRO_0000326985"
FT TRANSMEM 33..53
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 59..79
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 106..126
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 127..147
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 181..201
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 208..230
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 245..265
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 307 AA; 33066 MW; 1D2420BE2048B481 CRC64;
MTALAPSSTP LPAGRRGAVD IVKGLIALTK PRIIELLLVT TVPTMMLAAR GWPSSRLVVV
TVLAGALAAG SANTLNCFID RDIDQVMRRT ARRPLVRSVI RPAEALAFGV ALGVVATLLM
GFLVNWLSAI LADAAIVFYV GVYTIGLKRR TPSNIVIGGA AGCFPVLIGW SAVTGRVGWP
AVVLFAVIFA WTPPHFWALA MRFREDYAAA HVPMLPVVAE PLVVARQILW YSYGMVAASL
ALAPVAHVGW VYVAIAALLG GWFLAEAHRI VQRVRLGRDP RPMRLFHMSI SYLTLLFVAV
ALAPYLP
