ID   PETO_VOLCA              Reviewed;         203 AA.
AC   Q9SBM5;
DT   15-NOV-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-2000, sequence version 1.
DT   25-MAY-2022, entry version 58.
DE   RecName: Full=Cytochrome b6-f complex subunit petO, chloroplastic;
DE   AltName: Full=Cytochrome b6-f complex subunit V;
DE            Short=suV;
DE   AltName: Full=Cytochrome b6-f-associated phosphoprotein;
DE   Flags: Precursor;
GN   Name=PETO;
OS   Volvox carteri (Green alga).
OC   Eukaryota; Viridiplantae; Chlorophyta; core chlorophytes; Chlorophyceae;
OC   CS clade; Chlamydomonadales; Volvocaceae; Volvox.
OX   NCBI_TaxID=3067;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RC   STRAIN=f. Nagariensis;
RX   PubMed=10654090; DOI=10.1007/s002940050511;
RA   Meissner M., Stark K., Cresnar B., Kirk D.L., Schmitt R.;
RT   "Volvox germline-specific genes that are putative targets of RegA
RT   repression encode chloroplast proteins.";
RL   Curr. Genet. 36:363-370(1999).
CC   -!- FUNCTION: The cytochrome b6-f complex functions in the linear cross-
CC       membrane transport of electrons between photosystem II and I, as well
CC       as in cyclic electron flow around photosystem I.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000250}; Single-pass membrane protein {ECO:0000250}.
CC   -!- PTM: Phosphorylated. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the petO family. {ECO:0000305}.
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DR   EMBL; AF110791; AAD55573.1; -; mRNA.
DR   RefSeq; XP_002946525.1; XM_002946479.1.
DR   AlphaFoldDB; Q9SBM5; -.
DR   GeneID; 9624486; -.
DR   KEGG; vcn:VOLCADRAFT_72648; -.
DR   OMA; SAHKGAF; -.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0070469; C:respirasome; IEA:UniProtKB-KW.
PE   2: Evidence at transcript level;
KW   Chloroplast; Electron transport; Membrane; Phosphoprotein; Plastid;
KW   Respiratory chain; Thylakoid; Transit peptide; Transmembrane;
KW   Transmembrane helix; Transport.
FT   TRANSIT         1..53
FT                   /note="Chloroplast"
FT                   /evidence="ECO:0000250"
FT   CHAIN           54..203
FT                   /note="Cytochrome b6-f complex subunit petO, chloroplastic"
FT                   /id="PRO_0000023866"
FT   TOPO_DOM        54..120
FT                   /note="Lumenal"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        121..141
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        142..203
FT                   /note="Stromal"
FT                   /evidence="ECO:0000255"
FT   REGION          79..118
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        102..116
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   203 AA;  20749 MW;  DE32B15372D3BAC2 CRC64;
     MALATRCKAP AAVCAAHSRR SVKVSAHKGA FEQVQVAAAA VAAAALLASP ANAGVVLQQP
     ELKKVFQDDA PAPAPVKREF KGLAPPSLPK PVEAPKPAAV AAAPEKKEEV KESGSDLDPR
     SIALPGALAL TIGGFFAASK IDTSFNEWFI EAVVKDSNNY AGYEATLKTD AGVVFPKAAT
     AGTKKVKAAT GSKKGGFPFG GKK