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PETN_PROM3
ID   PETN_PROM3              Reviewed;          33 AA.
AC   A2C9Y5;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   20-FEB-2007, sequence version 1.
DT   03-AUG-2022, entry version 69.
DE   RecName: Full=Cytochrome b6-f complex subunit 8 {ECO:0000255|HAMAP-Rule:MF_00395};
DE   AltName: Full=Cytochrome b6-f complex subunit PetN {ECO:0000255|HAMAP-Rule:MF_00395};
DE   AltName: Full=Cytochrome b6-f complex subunit VIII {ECO:0000255|HAMAP-Rule:MF_00395};
GN   Name=petN {ECO:0000255|HAMAP-Rule:MF_00395}; OrderedLocusNames=P9303_15511;
OS   Prochlorococcus marinus (strain MIT 9303).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=59922;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MIT 9303;
RX   PubMed=18159947; DOI=10.1371/journal.pgen.0030231;
RA   Kettler G.C., Martiny A.C., Huang K., Zucker J., Coleman M.L., Rodrigue S.,
RA   Chen F., Lapidus A., Ferriera S., Johnson J., Steglich C., Church G.M.,
RA   Richardson P., Chisholm S.W.;
RT   "Patterns and implications of gene gain and loss in the evolution of
RT   Prochlorococcus.";
RL   PLoS Genet. 3:2515-2528(2007).
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_00395}.
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_00395}.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000255|HAMAP-
CC       Rule:MF_00395}; Single-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_00395}.
CC   -!- SIMILARITY: Belongs to the PetN family. {ECO:0000255|HAMAP-
CC       Rule:MF_00395}.
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DR   EMBL; CP000554; ABM78295.1; -; Genomic_DNA.
DR   AlphaFoldDB; A2C9Y5; -.
DR   SMR; A2C9Y5; -.
DR   STRING; 59922.P9303_15511; -.
DR   EnsemblBacteria; ABM78295; ABM78295; P9303_15511.
DR   KEGG; pmf:P9303_15511; -.
DR   HOGENOM; CLU_215774_0_0_3; -.
DR   BioCyc; PMAR59922:G1G80-1346-MON; -.
DR   Proteomes; UP000002274; Chromosome.
DR   GO; GO:0009512; C:cytochrome b6f complex; IEA:InterPro.
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:InterPro.
DR   GO; GO:0017004; P:cytochrome complex assembly; IEA:UniProtKB-UniRule.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR   HAMAP; MF_00395; Cytb6_f_PetN; 1.
DR   InterPro; IPR036143; Cytochr_b6-f_cplx_su8_sf.
DR   InterPro; IPR005497; Cytochrome_b6-f_cplx_su8.
DR   Pfam; PF03742; PetN; 1.
DR   SUPFAM; SSF103451; SSF103451; 1.
PE   3: Inferred from homology;
KW   Electron transport; Membrane; Photosynthesis; Thylakoid; Transmembrane;
KW   Transmembrane helix; Transport.
FT   CHAIN           1..33
FT                   /note="Cytochrome b6-f complex subunit 8"
FT                   /id="PRO_1000049575"
FT   TRANSMEM        2..22
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00395"
SQ   SEQUENCE   33 AA;  3580 MW;  EF5B0D79F7881A1B CRC64;
     MLFTLAWASL AAVFSFSIAM VVWGRNGDGS LNF
 
 
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