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CYF_CRUWA
ID   CYF_CRUWA               Reviewed;         320 AA.
AC   A4QKU4;
DT   01-JUL-2008, integrated into UniProtKB/Swiss-Prot.
DT   15-MAY-2007, sequence version 1.
DT   03-AUG-2022, entry version 66.
DE   RecName: Full=Cytochrome f {ECO:0000255|HAMAP-Rule:MF_00610};
DE   Flags: Precursor;
GN   Name=petA {ECO:0000255|HAMAP-Rule:MF_00610};
OS   Crucihimalaya wallichii (Rock-cress) (Arabidopsis campestris).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; malvids; Brassicales; Brassicaceae; Crucihimalayeae; Crucihimalaya.
OX   NCBI_TaxID=78192;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA   Hosouchi T., Tsuruoka H., Kotani H.;
RT   "Sequencing analysis of Crucihimalaya wallichii chloroplast DNA.";
RL   Submitted (MAR-2007) to the EMBL/GenBank/DDBJ databases.
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; AP009372; BAF50299.1; -; Genomic_DNA.
DR   RefSeq; YP_001123475.1; NC_009271.1.
DR   AlphaFoldDB; A4QKU4; -.
DR   SMR; A4QKU4; -.
DR   GeneID; 4962691; -.
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_0000342055"
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;  35375 MW;  72110CC1F0D1569F CRC64;
     MQTRNTFSWI REEITRSISV SLMIYIITWA SISSAYPIFA QQNYENPREA TGRIVCANCH
     LANKPVDIEV PQTVLPDTVF EAVVKIPYDM QLKQVLANGK KGALNVGAVL ILPEGFELAP
     PDRISPEMKE KIGNLSFQNY RPNKKNILVI GPVPGQKYSE ITFPILAPDP ATNKDVHFLK
     YPIYVGGNRG RGQIYPDGSK SNNTVYNATA GGIISKILRK EKGGYEITIV DASNGREVID
     IIPRGLELLV SEGESIKLDQ PLTSNPNVGG FGQGDAEIVL QDPLRVQGLL FFLGSVVLAQ
     IFLVLKKKQF EKVQLSEMNF
 
 
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