ID   CYF_DAUCA               Reviewed;         320 AA.
AC   Q0G9U9;
DT   06-FEB-2007, integrated into UniProtKB/Swiss-Prot.
DT   03-OCT-2006, sequence version 1.
DT   03-AUG-2022, entry version 70.
DE   RecName: Full=Cytochrome f {ECO:0000255|HAMAP-Rule:MF_00610};
DE   Flags: Precursor;
GN   Name=petA {ECO:0000255|HAMAP-Rule:MF_00610};
OS   Daucus carota (Wild carrot).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; campanulids; Apiales; Apiaceae; Apioideae; Scandiceae; Daucinae;
OC   Daucus; Daucus sect. Daucus.
OX   NCBI_TaxID=4039;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Danvers Half-long;
RX   PubMed=16945140; DOI=10.1186/1471-2164-7-222;
RA   Ruhlman T., Lee S.-B., Jansen R.K., Hostetler J.B., Tallon L.J., Town C.D.,
RA   Daniell H.;
RT   "Complete plastid genome sequence of Daucus carota: implications for
RT   biotechnology and phylogeny of angiosperms.";
RL   BMC Genomics 7:222-222(2006).
CC   -!- FUNCTION: Component of the cytochrome b6-f complex, which mediates
CC       electron transfer between photosystem II (PSII) and photosystem I
CC       (PSI), cyclic electron flow around PSI, and state transitions.
CC       {ECO:0000255|HAMAP-Rule:MF_00610}.
CC   -!- COFACTOR:
CC       Name=heme; Xref=ChEBI:CHEBI:30413;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00610};
CC       Note=Binds 1 heme group covalently. {ECO:0000255|HAMAP-Rule:MF_00610};
CC   -!- SUBUNIT: The 4 large subunits of the cytochrome b6-f complex are
CC       cytochrome b6, subunit IV (17 kDa polypeptide, petD), cytochrome f and
CC       the Rieske protein, while the 4 small subunits are PetG, PetL, PetM and
CC       PetN. The complex functions as a dimer (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_00610}; Single-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_00610}.
CC   -!- SIMILARITY: Belongs to the cytochrome f family. {ECO:0000255|HAMAP-
CC       Rule:MF_00610}.
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DR   EMBL; DQ898156; ABI32437.1; -; Genomic_DNA.
DR   RefSeq; YP_740130.1; NC_008325.1.
DR   AlphaFoldDB; Q0G9U9; -.
DR   SMR; Q0G9U9; -.
DR   PRIDE; Q0G9U9; -.
DR   EnsemblPlants; KZM81235; KZM81235; DCAR_032497.
DR   GeneID; 4266756; -.
DR   Gramene; KZM81235; KZM81235; DCAR_032497.
DR   OMA; FWAQQNY; -.
DR   OrthoDB; 826802at2759; -.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0031361; C:integral component of thylakoid membrane; IEA:InterPro.
DR   GO; GO:0009055; F:electron transfer activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0020037; F:heme binding; IEA:InterPro.
DR   GO; GO:0005506; F:iron ion binding; IEA:InterPro.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-UniRule.
DR   Gene3D; 2.60.40.830; -; 1.
DR   HAMAP; MF_00610; Cytb6_f_cytF; 1.
DR   InterPro; IPR024058; Cyt-f_TM.
DR   InterPro; IPR002325; Cyt_f.
DR   InterPro; IPR024094; Cyt_f_lg_dom.
DR   InterPro; IPR036826; Cyt_f_lg_dom_sf.
DR   InterPro; IPR011054; Rudment_hybrid_motif.
DR   Pfam; PF01333; Apocytochr_F_C; 1.
DR   Pfam; PF16639; Apocytochr_F_N; 1.
DR   PRINTS; PR00610; CYTOCHROMEF.
DR   SUPFAM; SSF103431; SSF103431; 1.
DR   SUPFAM; SSF49441; SSF49441; 1.
DR   SUPFAM; SSF51246; SSF51246; 1.
DR   PROSITE; PS51010; CYTF; 1.
PE   3: Inferred from homology;
KW   Chloroplast; Electron transport; Heme; Iron; Membrane; Metal-binding;
KW   Photosynthesis; Plastid; Signal; Thylakoid; Transmembrane;
KW   Transmembrane helix; Transport.
FT   SIGNAL          1..35
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00610"
FT   CHAIN           36..320
FT                   /note="Cytochrome f"
FT                   /id="PRO_0000275409"
FT   TRANSMEM        286..306
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00610"
FT   BINDING         36
FT                   /ligand="heme"
FT                   /ligand_id="ChEBI:CHEBI:30413"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00610"
FT   BINDING         56
FT                   /ligand="heme"
FT                   /ligand_id="ChEBI:CHEBI:30413"
FT                   /note="covalent"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00610"
FT   BINDING         59
FT                   /ligand="heme"
FT                   /ligand_id="ChEBI:CHEBI:30413"
FT                   /note="covalent"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00610"
FT   BINDING         60
FT                   /ligand="heme"
FT                   /ligand_id="ChEBI:CHEBI:30413"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00610"
SQ   SEQUENCE   320 AA;  35285 MW;  22C607FDA6A22F62 CRC64;
     MQTRKTFSWI KEQINRSISV SLMIYIITRP SISIAYPIFA QQGYENPREA TGRIVCANCH
     LANKPVDIEV PQTVLPDTVF EAVVRIPYDM QLKQVLANGK RGTLNVGAVL ILPEGFELAP
     ADRISPEMKE KIGNLSFQSY RPNKKNILVI GPVPGQKYSE ITFPILSPDP ATTKEVHFLK
     YPIYVGGNRG RGQIYPDGSK SNNTVYNATS AGIVGKIIRK EKGGYEITIA DASDGRQVVD
     IIPPGPELLV SEGESIKLDQ PLTSNPNVGG FGQGDAEIVL QDPLRVQGLL FFLASVILAQ
     IFLVLKKKQF EKVQLSEMNF