PETD_SPIOL
ID PETD_SPIOL Reviewed; 160 AA.
AC P00166;
DT 21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT 01-NOV-1990, sequence version 2.
DT 25-MAY-2022, entry version 118.
DE RecName: Full=Cytochrome b6-f complex subunit 4 {ECO:0000255|HAMAP-Rule:MF_01344};
DE AltName: Full=17 kDa polypeptide {ECO:0000255|HAMAP-Rule:MF_01344};
GN Name=petD {ECO:0000255|HAMAP-Rule:MF_01344};
OS Spinacia oleracea (Spinach).
OG Plastid; Chloroplast.
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC Caryophyllales; Chenopodiaceae; Chenopodioideae; Anserineae; Spinacia.
OX NCBI_TaxID=3562;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA Heinemeyer W., Alt J., Herrmann R.G.;
RT "Nucleotide sequence of the clustered genes for apocytochrome b6 and
RT subunit 4 of the cytochrome b/f complex in the spinach plastid
RT chromosome.";
RL Curr. Genet. 8:543-549(1984).
RN [2]
RP PROTEIN SEQUENCE.
RX PubMed=6322162; DOI=10.1073/pnas.81.3.674;
RA Widger W.R., Cramer W.A., Herrmann R.G., Trebst A.;
RT "Sequence homology and structural similarity between cytochrome b of
RT mitochondrial complex III and the chloroplast b6-f complex: position of the
RT cytochrome b hemes in the membrane.";
RL Proc. Natl. Acad. Sci. U.S.A. 81:674-678(1984).
RN [3]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=cv. Geant d'hiver, and cv. Monatol;
RX PubMed=11292076; DOI=10.1023/a:1006478403810;
RA Schmitz-Linneweber C., Maier R.M., Alcaraz J.-P., Cottet A., Herrmann R.G.,
RA Mache R.;
RT "The plastid chromosome of spinach (Spinacia oleracea): complete nucleotide
RT sequence and gene organization.";
RL Plant Mol. Biol. 45:307-315(2001).
RN [4]
RP PROTEIN SEQUENCE OF 1-22.
RX PubMed=2831053; DOI=10.1111/j.1432-1033.1988.tb13824.x;
RA Westhoff P., Herrmann R.G.;
RT "Complex RNA maturation in chloroplasts. The psbB operon from spinach.";
RL Eur. J. Biochem. 171:551-564(1988).
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_01344}.
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_01344}; Multi-pass membrane protein
CC {ECO:0000255|HAMAP-Rule:MF_01344}.
CC -!- SIMILARITY: Belongs to the cytochrome b family. PetD subfamily.
CC {ECO:0000255|HAMAP-Rule:MF_01344}.
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DR EMBL; X07106; CAA30129.1; -; Genomic_DNA.
DR EMBL; AJ400848; CAB88758.1; -; Genomic_DNA.
DR PIR; S00458; WMSP17.
DR RefSeq; NP_054965.1; NC_002202.1.
DR PDB; 6RQF; EM; 3.58 A; B/J=1-160.
DR PDBsum; 6RQF; -.
DR AlphaFoldDB; P00166; -.
DR SMR; P00166; -.
DR IntAct; P00166; 1.
DR STRING; 3562.P00166; -.
DR BindingDB; P00166; -.
DR ChEMBL; CHEMBL2366461; -.
DR GeneID; 2715599; -.
DR KEGG; soe:2715599; -.
DR OrthoDB; 1125966at2759; -.
DR PRO; PR:P00166; -.
DR Proteomes; UP000054095; Chloroplast.
DR GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0045158; F:electron transporter, transferring electrons within cytochrome b6/f complex of photosystem II activity; IEA:UniProtKB-UniRule.
DR GO; GO:0045156; F:electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity; IEA:InterPro.
DR GO; GO:0009767; P:photosynthetic electron transport chain; IEA:InterPro.
DR CDD; cd00290; cytochrome_b_C; 1.
DR HAMAP; MF_01344; Cytb6_f_subIV; 1.
DR InterPro; IPR005798; Cyt_b/b6_C.
DR InterPro; IPR036150; Cyt_b/b6_C_sf.
DR InterPro; IPR005870; Cyt_b6/f_cplx_suIV.
DR Pfam; PF00032; Cytochrom_B_C; 1.
DR PIRSF; PIRSF000033; B6f_17K; 1.
DR SUPFAM; SSF81648; SSF81648; 1.
DR TIGRFAMs; TIGR01156; cytb6/f_IV; 1.
DR PROSITE; PS51003; CYTB_CTER; 1.
PE 1: Evidence at protein level;
KW 3D-structure; Chloroplast; Direct protein sequencing; Electron transport;
KW Membrane; Photosynthesis; Plastid; Reference proteome; Thylakoid;
KW Transmembrane; Transmembrane helix; Transport.
FT CHAIN 1..160
FT /note="Cytochrome b6-f complex subunit 4"
FT /id="PRO_0000061893"
FT TRANSMEM 36..56
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01344"
FT TRANSMEM 95..115
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01344"
FT TRANSMEM 131..151
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01344"
FT CONFLICT 28..31
FT /note="Missing (in Ref. 2; AA sequence)"
FT /evidence="ECO:0000305"
FT CONFLICT 117
FT /note="Missing (in Ref. 2; AA sequence)"
FT /evidence="ECO:0000305"
SQ SEQUENCE 160 AA; 17445 MW; 8FBDC1A34D4C2B07 CRC64;
MGVTKKPDLN DPVLRAKLAK GMGHNYYGEP AWPNDLLYIF PVVILGTIAC NVGLAVLEPS
MIGEPADPFA TPLEILPEWY FFPVFQILRT VPNKLLGVLL MASVPAGLLT VPFLENVNKF
QNPFRRPVAT TVFLVGTVVA LWLGIGATLP IDKSLTLGLF
