COXX2_PYRAE
ID COXX2_PYRAE Reviewed; 280 AA.
AC Q8ZST3;
DT 02-SEP-2008, integrated into UniProtKB/Swiss-Prot.
DT 02-SEP-2008, sequence version 2.
DT 25-MAY-2022, entry version 93.
DE RecName: Full=Protoheme IX farnesyltransferase 2 {ECO:0000255|HAMAP-Rule:MF_00154};
DE EC=2.5.1.141 {ECO:0000255|HAMAP-Rule:MF_00154};
DE AltName: Full=Heme B farnesyltransferase 2 {ECO:0000255|HAMAP-Rule:MF_00154};
DE AltName: Full=Heme O synthase 2 {ECO:0000255|HAMAP-Rule:MF_00154};
GN Name=ctaB2 {ECO:0000255|HAMAP-Rule:MF_00154}; OrderedLocusNames=PAE3597;
OS Pyrobaculum aerophilum (strain ATCC 51768 / DSM 7523 / JCM 9630 / CIP
OS 104966 / NBRC 100827 / IM2).
OC Archaea; Crenarchaeota; Thermoprotei; Thermoproteales; Thermoproteaceae;
OC Pyrobaculum.
OX NCBI_TaxID=178306;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 51768 / DSM 7523 / JCM 9630 / CIP 104966 / NBRC 100827 / IM2;
RX PubMed=11792869; DOI=10.1073/pnas.241636498;
RA Fitz-Gibbon S.T., Ladner H., Kim U.-J., Stetter K.O., Simon M.I.,
RA Miller J.H.;
RT "Genome sequence of the hyperthermophilic crenarchaeon Pyrobaculum
RT aerophilum.";
RL Proc. Natl. Acad. Sci. U.S.A. 99:984-989(2002).
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}.
CC -!- SEQUENCE CAUTION:
CC Sequence=AAL65030.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; AE009441; AAL65030.1; ALT_INIT; Genomic_DNA.
DR AlphaFoldDB; Q8ZST3; -.
DR SMR; Q8ZST3; -.
DR STRING; 178306.PAE3597; -.
DR EnsemblBacteria; AAL65030; AAL65030; PAE3597.
DR KEGG; pai:PAE3597; -.
DR PATRIC; fig|178306.9.peg.2710; -.
DR eggNOG; arCOG00479; Archaea.
DR HOGENOM; CLU_029631_0_1_2; -.
DR InParanoid; Q8ZST3; -.
DR OMA; PPLMGYC; -.
DR UniPathway; UPA00834; UER00712.
DR Proteomes; UP000002439; 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; 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 membrane; Heme biosynthesis; Membrane; Reference proteome;
KW Transferase; Transmembrane; Transmembrane helix.
FT CHAIN 1..280
FT /note="Protoheme IX farnesyltransferase 2"
FT /id="PRO_0000346090"
FT TRANSMEM 12..32
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 35..55
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 76..96
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 129..149
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 158..178
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 199..221
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 226..248
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
FT TRANSMEM 255..275
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00154"
SQ SEQUENCE 280 AA; 30190 MW; C0F0C35CBAEBAD84 CRC64;
MSPYISLLKP RVIWLLILAS VAGYIYGGGG VDSRLFSLLA VAFLSTGGSA AFNHYWERDI
DALMTRTFKR PLPSGLITPN AALAYSLALS ATGISLGFLL LGLLPGLFVL LGWLFYAVVY
TIVLKRRTWL NIFGGGFAGN AVFLGGYALA KGTVDLPAVL ISFAIYLWTP SHIWALAFKY
RGDYKRAGVP MLPALIKEER AVAVISAINA AAAAYILWLY LQFGGGAGGA IVALGVAATI
ATSIYAAVKK TEEAMWKMYK ASSPMLTLFL IALMIQRYRL
