CYC6_TETOB
ID CYC6_TETOB Reviewed; 89 AA.
AC P57736;
DT 11-JAN-2001, integrated into UniProtKB/Swiss-Prot.
DT 11-JAN-2001, sequence version 1.
DT 03-AUG-2022, entry version 88.
DE RecName: Full=Cytochrome c6;
DE AltName: Full=Cytochrome c-553;
DE AltName: Full=Cytochrome c553;
DE AltName: Full=Soluble cytochrome f;
GN Name=petJ;
OS Tetradesmus obliquus (Green alga) (Acutodesmus obliquus).
OC Eukaryota; Viridiplantae; Chlorophyta; core chlorophytes; Chlorophyceae;
OC CS clade; Sphaeropleales; Scenedesmaceae; Tetradesmus.
OX NCBI_TaxID=3088;
RN [1]
RP PROTEIN SEQUENCE, AND X-RAY CRYSTALLOGRAPHY (2.0 ANGSTROMS).
RC STRAIN=D3;
RX PubMed=10438600; DOI=10.1006/jmbi.1999.2944;
RA Schnackenberg J., Than M.E., Mann K., Wiegand G., Huber R., Reuter W.;
RT "Amino acid sequence, crystallization and structure determination of
RT reduced and oxidized cytochrome c6 from the green alga Scenedesmus
RT obliquus.";
RL J. Mol. Biol. 290:1019-1030(1999).
CC -!- FUNCTION: Functions as an electron carrier between membrane-bound
CC cytochrome b6-f and photosystem I in oxygenic photosynthesis.
CC -!- SUBUNIT: Monomer.
CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid lumen.
CC -!- PTM: Binds 1 heme c group covalently per subunit.
CC -!- SIMILARITY: Belongs to the cytochrome c family. PetJ subfamily.
CC {ECO:0000305}.
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DR PIR; S77923; S77923.
DR PDB; 1C6O; X-ray; 2.00 A; A/B=1-89.
DR PDB; 1C6R; X-ray; 1.90 A; A=1-89.
DR PDBsum; 1C6O; -.
DR PDBsum; 1C6R; -.
DR AlphaFoldDB; P57736; -.
DR SMR; P57736; -.
DR EvolutionaryTrace; P57736; -.
DR GO; GO:0009543; C:chloroplast thylakoid lumen; IEA:UniProtKB-SubCell.
DR GO; GO:0009055; F:electron transfer activity; IEA:InterPro.
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-KW.
DR Gene3D; 1.10.760.10; -; 1.
DR InterPro; IPR009056; Cyt_c-like_dom.
DR InterPro; IPR036909; Cyt_c-like_dom_sf.
DR InterPro; IPR023655; Cyt_C6.
DR InterPro; IPR008168; Cyt_C_IC.
DR PANTHER; PTHR34688; PTHR34688; 1.
DR Pfam; PF13442; Cytochrome_CBB3; 1.
DR PRINTS; PR00605; CYTCHROMECIC.
DR SUPFAM; SSF46626; SSF46626; 1.
DR PROSITE; PS51007; CYTC; 1.
PE 1: Evidence at protein level;
KW 3D-structure; Chloroplast; Direct protein sequencing; Electron transport;
KW Heme; Iron; Metal-binding; Photosynthesis; Plastid; Thylakoid; Transport.
FT CHAIN 1..89
FT /note="Cytochrome c6"
FT /id="PRO_0000208680"
FT BINDING 15
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /note="covalent"
FT BINDING 18
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /note="covalent"
FT BINDING 19
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT BINDING 61
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT HELIX 4..14
FT /evidence="ECO:0007829|PDB:1C6R"
FT HELIX 16..19
FT /evidence="ECO:0007829|PDB:1C6R"
FT HELIX 20..22
FT /evidence="ECO:0007829|PDB:1C6R"
FT STRAND 25..27
FT /evidence="ECO:0007829|PDB:1C6R"
FT HELIX 34..40
FT /evidence="ECO:0007829|PDB:1C6R"
FT HELIX 47..56
FT /evidence="ECO:0007829|PDB:1C6R"
FT TURN 65..67
FT /evidence="ECO:0007829|PDB:1C6R"
FT HELIX 70..85
FT /evidence="ECO:0007829|PDB:1C6R"
SQ SEQUENCE 89 AA; 9408 MW; 3B37FE598DDD78AE CRC64;
SADLALGKQT FEANCAACHA GGNNSVIPDH TLRKAAMEQF LQGGFNLEAI TYQVENGKGA
MPAWSGTLDD DEIAAVAAYV YDQASGDKW
