PETD_SYNEL
ID PETD_SYNEL Reviewed; 161 AA.
AC P0C8N2; Q79V52; Q9X9S8;
DT 20-JAN-2009, integrated into UniProtKB/Swiss-Prot.
DT 20-JAN-2009, sequence version 1.
DT 25-MAY-2022, entry version 50.
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 Synechococcus elongatus.
OC Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus.
OX NCBI_TaxID=32046;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=10760604; DOI=10.1016/s0167-4781(00)00048-8;
RA Schneider D., Altenfeld U., Thomas H., Schrader S., Muehlenhoff U.,
RA Roegner M.;
RT "Sequence of the two operons encoding the four core subunits of the
RT cytochrome b6f complex from the thermophilic cyanobacterium Synechococcus
RT elongatus.";
RL Biochim. Biophys. Acta 1491:364-368(2000).
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. {ECO:0000255|HAMAP-
CC Rule:MF_01344}.
CC -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000255|HAMAP-
CC Rule:MF_01344}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC 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; AJ243707; CAB46750.1; -; Genomic_DNA.
DR AlphaFoldDB; P0C8N2; -.
DR SMR; P0C8N2; -.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0031676; C:plasma membrane-derived thylakoid membrane; IEA:UniProtKB-SubCell.
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 3: Inferred from homology;
KW Electron transport; Membrane; Photosynthesis; Thylakoid; Transmembrane;
KW Transmembrane helix; Transport.
FT CHAIN 1..161
FT /note="Cytochrome b6-f complex subunit 4"
FT /id="PRO_0000061908"
FT TRANSMEM 37..57
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01344"
FT TRANSMEM 96..116
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01344"
FT TRANSMEM 130..150
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01344"
SQ SEQUENCE 161 AA; 17831 MW; B7309123F6852991 CRC64;
MAKVLKKPDL TNPALRAKLK KGMGHNYYGE PAWPNDLLYI FPVVIMGTIA LVIGLAVMDP
AMVGEPADPF ATPLEILPEW YLYPTFQIFR VVPNKLLGVL MNASIPLGLM LIPFIESVNK
FQNPFRRPVA MTVFLFGTLV TLWLGIGAAF PLDKSLTLGL F
