ID   PSBB_NEPOL              Reviewed;         508 AA.
AC   Q9TKW4;
DT   05-DEC-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-2000, sequence version 1.
DT   03-AUG-2022, entry version 79.
DE   RecName: Full=Photosystem II CP47 reaction center protein {ECO:0000255|HAMAP-Rule:MF_01495};
DE   AltName: Full=PSII 47 kDa protein {ECO:0000255|HAMAP-Rule:MF_01495};
DE   AltName: Full=Protein CP-47 {ECO:0000255|HAMAP-Rule:MF_01495};
GN   Name=psbB {ECO:0000255|HAMAP-Rule:MF_01495};
OS   Nephroselmis olivacea (Green alga).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Chlorophyta; Nephroselmidophyceae;
OC   Nephroselmidales; Nephroselmidaceae; Nephroselmis.
OX   NCBI_TaxID=31312;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NIES-484 / S-N-5-8;
RX   PubMed=10468594; DOI=10.1073/pnas.96.18.10248;
RA   Turmel M., Otis C., Lemieux C.;
RT   "The complete chloroplast DNA sequence of the green alga Nephroselmis
RT   olivacea: insights into the architecture of ancestral chloroplast
RT   genomes.";
RL   Proc. Natl. Acad. Sci. U.S.A. 96:10248-10253(1999).
CC   -!- FUNCTION: One of the components of the core complex of photosystem II
CC       (PSII). It binds chlorophyll and helps catalyze the primary light-
CC       induced photochemical processes of PSII. PSII is a light-driven
CC       water:plastoquinone oxidoreductase, using light energy to abstract
CC       electrons from H(2)O, generating O(2) and a proton gradient
CC       subsequently used for ATP formation. {ECO:0000255|HAMAP-Rule:MF_01495}.
CC   -!- COFACTOR:
CC       Note=Binds multiple chlorophylls. PSII binds additional chlorophylls,
CC       carotenoids and specific lipids. {ECO:0000255|HAMAP-Rule:MF_01495};
CC   -!- SUBUNIT: PSII is composed of 1 copy each of membrane proteins PsbA,
CC       PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK, PsbL, PsbM, PsbT,
CC       PsbX, PsbY, PsbZ, Ycf12, at least 3 peripheral proteins of the oxygen-
CC       evolving complex and a large number of cofactors. It forms dimeric
CC       complexes. {ECO:0000255|HAMAP-Rule:MF_01495}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_01495}; Multi-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_01495}.
CC   -!- SIMILARITY: Belongs to the PsbB/PsbC family. PsbB subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_01495}.
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DR   EMBL; AF137379; AAD54852.1; -; Genomic_DNA.
DR   RefSeq; NP_050881.1; NC_000927.1.
DR   AlphaFoldDB; Q9TKW4; -.
DR   SMR; Q9TKW4; -.
DR   PRIDE; Q9TKW4; -.
DR   GeneID; 801962; -.
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:0009523; C:photosystem II; IEA:UniProtKB-KW.
DR   GO; GO:0016168; F:chlorophyll binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0045156; F:electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity; IEA:InterPro.
DR   GO; GO:0009772; P:photosynthetic electron transport in photosystem II; IEA:InterPro.
DR   HAMAP; MF_01495; PSII_PsbB_CP47; 1.
DR   InterPro; IPR000932; PS_antenna-like.
DR   InterPro; IPR036001; PS_II_antenna-like_sf.
DR   InterPro; IPR017486; PSII_PsbB.
DR   PANTHER; PTHR33180; PTHR33180; 1.
DR   Pfam; PF00421; PSII; 1.
DR   SUPFAM; SSF161077; SSF161077; 1.
DR   TIGRFAMs; TIGR03039; PS_II_CP47; 1.
PE   3: Inferred from homology;
KW   Chlorophyll; Chloroplast; Chromophore; Membrane; Photosynthesis;
KW   Photosystem II; Plastid; Thylakoid; Transmembrane; Transmembrane helix.
FT   CHAIN           1..508
FT                   /note="Photosystem II CP47 reaction center protein"
FT                   /id="PRO_0000077488"
FT   TRANSMEM        21..36
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01495"
FT   TRANSMEM        101..115
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01495"
FT   TRANSMEM        140..156
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01495"
FT   TRANSMEM        203..218
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01495"
FT   TRANSMEM        237..252
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01495"
FT   TRANSMEM        457..472
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01495"
SQ   SEQUENCE   508 AA;  56014 MW;  90545B4B0569054F CRC64;
     MGLPWYRVHT VVLNDPGRLI AVHLMHTALV SGWAGSMALY EISVFDPSDP VLNPMWRQGM
     FVIPFMTRLG VTKSWGGWSI TGESVSNPGI WSYEGVATAH ILLSGALFMA AIWHWVFWDL
     ELFRDPRTGE PALDLPKIFG IHLFLSGLLC FGFGAFHVTG LYGPGIWVSD PYGITGSVQP
     VEPAWGPEGF DPFNPGGIAS HHIAAGILGI LAGLFHLSVR PPQRLYKALR MGNVETVLSS
     SIAAVFWAAF VVSGTMWYGS AATPIELFGP TRYQWDQGFF QQEIEKRVQG SLASGASLSD
     AWAKIPEKLS FYDYIGNNPA KGGLFRAGAM NSGDGIAAGW LGHPVFTDKA GNELFVRRMP
     TFFETFPVLL VDKDGVVRAD VPFRRAESKY SIEQVGVSVT FYGGELDGVT FNDPSTVKKY
     ARRAQLGSVF EFDRATLQSD GVFRSSPRGW FTFGHLWFAL LFFFGHIWHG ARTIFRDVFG
     GIDPDLDDQV EFGAFQKLGD VTTRRQAV