PETG_NOSS1
ID PETG_NOSS1 Reviewed; 37 AA.
AC P58246;
DT 29-AUG-2001, integrated into UniProtKB/Swiss-Prot.
DT 29-AUG-2001, sequence version 1.
DT 25-MAY-2022, entry version 103.
DE RecName: Full=Cytochrome b6-f complex subunit 5 {ECO:0000255|HAMAP-Rule:MF_00432};
DE AltName: Full=Cytochrome b6-f complex subunit PetG {ECO:0000255|HAMAP-Rule:MF_00432};
DE AltName: Full=Cytochrome b6-f complex subunit V {ECO:0000255|HAMAP-Rule:MF_00432};
GN Name=petG {ECO:0000255|HAMAP-Rule:MF_00432}; OrderedLocusNames=asr1366;
OS Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576).
OC Bacteria; Cyanobacteria; Nostocales; Nostocaceae; Nostoc.
OX NCBI_TaxID=103690;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA Arnold M.;
RT "b6f complex of Anabaena sp.";
RL Submitted (MAY-2001) to the EMBL/GenBank/DDBJ databases.
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PCC 7120 / SAG 25.82 / UTEX 2576;
RX PubMed=11759840; DOI=10.1093/dnares/8.5.205;
RA Kaneko T., Nakamura Y., Wolk C.P., Kuritz T., Sasamoto S., Watanabe A.,
RA Iriguchi M., Ishikawa A., Kawashima K., Kimura T., Kishida Y., Kohara M.,
RA Matsumoto M., Matsuno A., Muraki A., Nakazaki N., Shimpo S., Sugimoto M.,
RA Takazawa M., Yamada M., Yasuda M., Tabata S.;
RT "Complete genomic sequence of the filamentous nitrogen-fixing
RT cyanobacterium Anabaena sp. strain PCC 7120.";
RL DNA Res. 8:205-213(2001).
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. PetG is
CC required for either the stability or assembly of the cytochrome b6-f
CC complex. {ECO:0000255|HAMAP-Rule:MF_00432}.
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_00432}.
CC -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000255|HAMAP-
CC Rule:MF_00432}; Single-pass membrane protein {ECO:0000255|HAMAP-
CC Rule:MF_00432}.
CC -!- SIMILARITY: Belongs to the PetG family. {ECO:0000255|HAMAP-
CC Rule:MF_00432}.
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DR EMBL; AJ319650; CAC39610.1; -; Genomic_DNA.
DR EMBL; BA000019; BAB73323.1; -; Genomic_DNA.
DR PIR; AC1977; AC1977.
DR RefSeq; WP_010995538.1; NZ_RSCN01000029.1.
DR PDB; 2ZT9; X-ray; 3.00 A; G=1-37.
DR PDB; 4H44; X-ray; 2.70 A; G=1-37.
DR PDB; 4OGQ; X-ray; 2.50 A; G=1-37.
DR PDBsum; 2ZT9; -.
DR PDBsum; 4H44; -.
DR PDBsum; 4OGQ; -.
DR AlphaFoldDB; P58246; -.
DR SMR; P58246; -.
DR DIP; DIP-61006N; -.
DR IntAct; P58246; 1.
DR STRING; 103690.17130713; -.
DR TCDB; 3.D.3.5.6; the proton-translocating quinol:cytochrome c reductase (qcr) superfamily.
DR EnsemblBacteria; BAB73323; BAB73323; BAB73323.
DR KEGG; ana:asr1366; -.
DR eggNOG; ENOG5033BE9; Bacteria.
DR EvolutionaryTrace; P58246; -.
DR Proteomes; UP000002483; 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:UniProtKB-UniRule.
DR GO; GO:0017004; P:cytochrome complex assembly; IEA:UniProtKB-UniRule.
DR GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR HAMAP; MF_00432; Cytb6_f_PetG; 1.
DR InterPro; IPR003683; Cyt_6/f_cplx_su5.
DR InterPro; IPR036099; Cyt_6/f_cplx_su5_sf.
DR Pfam; PF02529; PetG; 1.
DR PIRSF; PIRSF000034; Cyt_b6-f_V; 1.
DR SUPFAM; SSF103446; SSF103446; 1.
PE 1: Evidence at protein level;
KW 3D-structure; Electron transport; Membrane; Photosynthesis;
KW Reference proteome; Thylakoid; Transmembrane; Transmembrane helix;
KW Transport.
FT CHAIN 1..37
FT /note="Cytochrome b6-f complex subunit 5"
FT /id="PRO_0000216408"
FT TRANSMEM 5..25
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00432"
FT HELIX 4..30
FT /evidence="ECO:0007829|PDB:4OGQ"
SQ SEQUENCE 37 AA; 3995 MW; D8A768B9DA7B727B CRC64;
MVEPLLSGIV LGLIVVTLAG LFYAAYKQYK RPNELGG
