ID   PSBN_TOBAC              Reviewed;          43 AA.
AC   P62114; P12172;
DT   21-JUN-2004, integrated into UniProtKB/Swiss-Prot.
DT   21-JUN-2004, sequence version 1.
DT   25-MAY-2022, entry version 55.
DE   RecName: Full=Photosystem biogenesis factor 1 {ECO:0000303|PubMed:23738654};
DE   AltName: Full=Protein PsbN {ECO:0000255|HAMAP-Rule:MF_00293};
GN   Name=pbf1 {ECO:0000303|PubMed:23738654};
GN   Synonyms=orf43, psbN {ECO:0000255|HAMAP-Rule:MF_00293};
OS   Nicotiana tabacum (Common tobacco).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; lamiids; Solanales; Solanaceae; Nicotianoideae; Nicotianeae;
OC   Nicotiana.
OX   NCBI_TaxID=4097;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Bright Yellow 4;
RX   PubMed=16453699; DOI=10.1002/j.1460-2075.1986.tb04464.x;
RA   Shinozaki K., Ohme M., Tanaka M., Wakasugi T., Hayashida N.,
RA   Matsubayashi T., Zaita N., Chunwongse J., Obokata J.,
RA   Yamaguchi-Shinozaki K., Ohto C., Torazawa K., Meng B.-Y., Sugita M.,
RA   Deno H., Kamogashira T., Yamada K., Kusuda J., Takaiwa F., Kato A.,
RA   Tohdoh N., Shimada H., Sugiura M.;
RT   "The complete nucleotide sequence of the tobacco chloroplast genome: its
RT   gene organization and expression.";
RL   EMBO J. 5:2043-2049(1986).
RN   [2]
RP   FUNCTION, INDUCTION, AND DISRUPTION PHENOTYPE.
RC   STRAIN=cv. Petit Havana;
RX   PubMed=23738654; DOI=10.1111/tpj.12256;
RA   Krech K., Fu H.Y., Thiele W., Ruf S., Schoettler M.A., Bock R.;
RT   "Reverse genetics in complex multigene operons by co-transformation of the
RT   plastid genome and its application to the open reading frame previously
RT   designated psbN.";
RL   Plant J. 75:1062-1074(2013).
CC   -!- FUNCTION: May play a role in photosystem I and II biogenesis.
CC       {ECO:0000255|HAMAP-Rule:MF_00293, ECO:0000269|PubMed:23738654}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_00293}; Single-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_00293}.
CC   -!- INDUCTION: Expressed in leaves; transcribed from the opposite strand
CC       from the psbB-psbT-psbH-petB-petD operon, it is found in the antisense
CC       region between psbT and psbH. {ECO:0000269|PubMed:23738654}.
CC   -!- DISRUPTION PHENOTYPE: When grown photoautotrophically on soil is highly
CC       light-sensitive with extremely slow growth and pigment deficiency; on
CC       sucrose-containing medium under low-light grows like wild-type.
CC       Strongly impaired photosynthesis; both PSI and PSII levels are
CC       decreased. {ECO:0000269|PubMed:23738654}.
CC   -!- SIMILARITY: Belongs to the PsbN family. {ECO:0000255|HAMAP-
CC       Rule:MF_00293}.
CC   -!- CAUTION: Originally thought to be a component of PSII; based on
CC       experiments in this organism, Synechocystis and barley, and its absence
CC       from PSII in T.elongatus and T.vulcanus, this is probably not true.
CC       {ECO:0000255|HAMAP-Rule:MF_00293, ECO:0000269|PubMed:23738654}.
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DR   EMBL; Z00044; CAA77424.1; -; Genomic_DNA.
DR   RefSeq; NP_054528.1; NC_001879.2.
DR   AlphaFoldDB; P62114; -.
DR   SMR; P62114; -.
DR   GeneID; 800457; -.
DR   KEGG; nta:800457; -.
DR   OrthoDB; 1632211at2759; -.
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:0015979; P:photosynthesis; IEA:InterPro.
DR   HAMAP; MF_00293; PSII_PsbN; 1.
DR   InterPro; IPR003398; PSII_PsbN.
DR   PANTHER; PTHR35326; PTHR35326; 1.
DR   Pfam; PF02468; PsbN; 1.
PE   2: Evidence at transcript level;
KW   Chloroplast; Membrane; Plastid; Thylakoid; Transmembrane;
KW   Transmembrane helix.
FT   CHAIN           1..43
FT                   /note="Photosystem biogenesis factor 1"
FT                   /id="PRO_0000207966"
FT   TRANSMEM        7..27
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00293"
SQ   SEQUENCE   43 AA;  4722 MW;  060A87AA741707AD CRC64;
     METATLVAIF ISGLLVSFTG YALYTAFGQP SQQLRDPFEE HGD