PETN_EMIHU
ID PETN_EMIHU Reviewed; 29 AA.
AC Q4G3B2;
DT 06-FEB-2007, integrated into UniProtKB/Swiss-Prot.
DT 30-AUG-2005, sequence version 1.
DT 03-AUG-2022, entry version 55.
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};
OS Emiliania huxleyi (Coccolithophore) (Pontosphaera huxleyi).
OG Plastid; Chloroplast.
OC Eukaryota; Haptista; Haptophyta; Prymnesiophyceae; Isochrysidales;
OC Noelaerhabdaceae; Emiliania.
OX NCBI_TaxID=2903;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CCMP373 / CSIRO-CS-57 / BT6;
RX PubMed=16303746; DOI=10.1093/dnares/12.2.151;
RA Sanchez-Puerta M.V., Bachvaroff T.R., Delwiche C.F.;
RT "The complete plastid genome sequence of the haptophyte Emiliania huxleyi:
RT a comparison to other plastid genomes.";
RL DNA Res. 12:151-156(2005).
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: Plastid, chloroplast thylakoid membrane; Single-
CC pass membrane protein.
CC -!- SIMILARITY: Belongs to the PetN family. {ECO:0000255|HAMAP-
CC Rule:MF_00395}.
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DR EMBL; AY741371; AAX13854.1; -; Genomic_DNA.
DR RefSeq; YP_277355.1; NC_007288.1.
DR AlphaFoldDB; Q4G3B2; -.
DR SMR; Q4G3B2; -.
DR GeneID; 3562428; -.
DR Proteomes; UP000013827; Unassembled WGS sequence.
DR GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
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: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 Chloroplast; Electron transport; Membrane; Photosynthesis; Plastid;
KW Reference proteome; Thylakoid; Transmembrane; Transmembrane helix;
KW Transport.
FT CHAIN 1..29
FT /note="Cytochrome b6-f complex subunit 8"
FT /id="PRO_0000275574"
FT TRANSMEM 3..23
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00395"
SQ SEQUENCE 29 AA; 3265 MW; E2EB2E552FD3FEA0 CRC64;
MDLLSLGWSS LMVMFSFSLA LVVWGRNGF