PETN_SYNE7
ID PETN_SYNE7 Reviewed; 34 AA.
AC Q31R12;
DT 25-NOV-2008, integrated into UniProtKB/Swiss-Prot.
DT 25-NOV-2008, sequence version 2.
DT 03-AUG-2022, entry version 83.
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};
GN OrderedLocusNames=Synpcc7942_0475;
OS Synechococcus elongatus (strain PCC 7942 / FACHB-805) (Anacystis nidulans
OS R2).
OC Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus.
OX NCBI_TaxID=1140;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PCC 7942 / FACHB-805;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA Hammon N., Israni S., Pitluck S., Schmutz J., Larimer F., Land M.,
RA Kyrpides N., Lykidis A., Richardson P.;
RT "Complete sequence of chromosome 1 of Synechococcus elongatus PCC 7942.";
RL Submitted (AUG-2005) 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_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}.
CC -!- SEQUENCE CAUTION:
CC Sequence=ABB56507.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; CP000100; ABB56507.1; ALT_INIT; Genomic_DNA.
DR RefSeq; WP_011243356.1; NC_007604.1.
DR AlphaFoldDB; Q31R12; -.
DR SMR; Q31R12; -.
DR STRING; 1140.Synpcc7942_0475; -.
DR EnsemblBacteria; ABB56507; ABB56507; Synpcc7942_0475.
DR KEGG; syf:Synpcc7942_0475; -.
DR HOGENOM; CLU_215774_0_0_3; -.
DR OrthoDB; 2086025at2; -.
DR BioCyc; MetaCyc:SYNPCC7942_0475-MON; -.
DR BioCyc; SYNEL:SYNPCC7942_0475-MON; -.
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..34
FT /note="Cytochrome b6-f complex subunit 8"
FT /id="PRO_5000100996"
FT TRANSMEM 3..23
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00395"
SQ SEQUENCE 34 AA; 3678 MW; 4A1E41863D4EB2D2 CRC64;
MELLTFGWAA LLAVFTFSLA MVVWGRNGDG SIGF
