COXX_HALSA
ID COXX_HALSA Reviewed; 442 AA.
AC Q9HRJ8;
DT 08-APR-2008, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2001, sequence version 1.
DT 25-MAY-2022, entry version 102.
DE RecName: Full=Protoheme IX farnesyltransferase;
DE EC=2.5.1.141;
DE AltName: Full=Heme B farnesyltransferase;
DE AltName: Full=Heme O synthase;
GN Name=ctaB; OrderedLocusNames=VNG_0666G;
OS Halobacterium salinarum (strain ATCC 700922 / JCM 11081 / NRC-1)
OS (Halobacterium halobium).
OC Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Halobacteriales;
OC Halobacteriaceae; Halobacterium.
OX NCBI_TaxID=64091;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700922 / JCM 11081 / NRC-1;
RX PubMed=11016950; DOI=10.1073/pnas.190337797;
RA Ng W.V., Kennedy S.P., Mahairas G.G., Berquist B., Pan M., Shukla H.D.,
RA Lasky S.R., Baliga N.S., Thorsson V., Sbrogna J., Swartzell S., Weir D.,
RA Hall J., Dahl T.A., Welti R., Goo Y.A., Leithauser B., Keller K., Cruz R.,
RA Danson M.J., Hough D.W., Maddocks D.G., Jablonski P.E., Krebs M.P.,
RA Angevine C.M., Dale H., Isenbarger T.A., Peck R.F., Pohlschroder M.,
RA Spudich J.L., Jung K.-H., Alam M., Freitas T., Hou S., Daniels C.J.,
RA Dennis P.P., Omer A.D., Ebhardt H., Lowe T.M., Liang P., Riley M., Hood L.,
RA DasSarma S.;
RT "Genome sequence of Halobacterium species NRC-1.";
RL Proc. Natl. Acad. Sci. U.S.A. 97:12176-12181(2000).
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:0000250}.
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;
CC -!- PATHWAY: Porphyrin-containing compound metabolism; heme O biosynthesis;
CC heme O from protoheme: step 1/1.
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000305}; Multi-pass membrane
CC protein {ECO:0000305}.
CC -!- MISCELLANEOUS: Carbon 2 of the heme B porphyrin ring is defined
CC according to the Fischer nomenclature. {ECO:0000250}.
CC -!- SIMILARITY: In the C-terminal section; belongs to the UbiA
CC prenyltransferase family. Protoheme IX farnesyltransferase subfamily.
CC {ECO:0000305}.
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DR EMBL; AE004437; AAG19160.1; -; Genomic_DNA.
DR PIR; D84224; D84224.
DR RefSeq; WP_010902456.1; NC_002607.1.
DR AlphaFoldDB; Q9HRJ8; -.
DR SMR; Q9HRJ8; -.
DR STRING; 64091.VNG_0666G; -.
DR PaxDb; Q9HRJ8; -.
DR EnsemblBacteria; AAG19160; AAG19160; VNG_0666G.
DR GeneID; 5953661; -.
DR GeneID; 62886284; -.
DR KEGG; hal:VNG_0666G; -.
DR PATRIC; fig|64091.14.peg.508; -.
DR HOGENOM; CLU_030009_1_1_2; -.
DR InParanoid; Q9HRJ8; -.
DR OMA; MKPRLMW; -.
DR OrthoDB; 97092at2157; -.
DR UniPathway; UPA00834; UER00712.
DR Proteomes; UP000000554; 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:0004311; F:farnesyltranstransferase activity; IBA:GO_Central.
DR GO; GO:0008495; F:protoheme IX farnesyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006783; P:heme biosynthetic process; IBA:GO_Central.
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..442
FT /note="Protoheme IX farnesyltransferase"
FT /id="PRO_0000327195"
FT TRANSMEM 49..69
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 76..96
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 106..126
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 167..187
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 194..214
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 245..265
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 267..287
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 308..328
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 365..385
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 386..406
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 421..441
FT /note="Helical"
FT /evidence="ECO:0000255"
FT REGION 1..167
FT /note="Unknown"
FT REGION 168..439
FT /note="Prenyltransferase"
SQ SEQUENCE 442 AA; 46128 MW; A951E2B87C9FFE30 CRC64;
MGVYSLLVLG ATTSLTGAAS ACQTWPSCNG QWFALQSLDL VVVWGHRTAA ALTGLAVVGA
AVLAWRTGAS RRVRTAVTLA LALYPVQVVI GAYTAMSAGA APFTGVHLTL GVGIFASLVV
ALAWTLDAQT GDLPSAEWEG EPRHTDDGDP TQPGIVRAYV QLMKPRLMWL LCLVAGAGMA
LASSQLGAGQ QLSAATVVLT LGGGVLSIGA SGTFNHVLER EQDEKMARTD DRPVVTDRIP
PRNALAFGVV LGVASLAAFA AVNLLTAVLG LTAIAFYSIV YTLVLKPNTR QSTVIGGAAG
ALPALIGWVA VTGAVGVGGV VLAGVIFLWT PAHFYNLALA YKDDYERGGF PLMPVVEGEA
KTRRHIVYYI GATLASAVVL AELTGLGPLY AATTVLLGAV FLYFAIRLHR ERDRRAAMRS
FHASNAYLGC LLVAVVLDTM VV
