PSBX_GUITH
ID PSBX_GUITH Reviewed; 39 AA.
AC O78455;
DT 15-DEC-1998, integrated into UniProtKB/Swiss-Prot.
DT 01-NOV-1998, sequence version 1.
DT 25-MAY-2022, entry version 63.
DE RecName: Full=Photosystem II reaction center X protein {ECO:0000255|HAMAP-Rule:MF_01386};
GN Name=psbX {ECO:0000255|HAMAP-Rule:MF_01386};
OS Guillardia theta (Cryptophyte) (Cryptomonas phi).
OG Plastid; Chloroplast.
OC Eukaryota; Cryptophyceae; Pyrenomonadales; Geminigeraceae; Guillardia.
OX NCBI_TaxID=55529;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=9929392; DOI=10.1007/pl00006462;
RA Douglas S.E., Penny S.L.;
RT "The plastid genome of the cryptophyte alga, Guillardia theta: complete
RT sequence and conserved synteny groups confirm its common ancestry with red
RT algae.";
RL J. Mol. Evol. 48:236-244(1999).
CC -!- FUNCTION: Involved in the binding and/or turnover of quinones at the
CC Q(B) site of Photosystem II. {ECO:0000255|HAMAP-Rule:MF_01386}.
CC -!- SUBUNIT: PSII consists of a core antenna complex that captures photons,
CC and an electron transfer chain that converts photonic excitation into a
CC charge separation. PSII forms dimeric complexes. {ECO:0000255|HAMAP-
CC Rule:MF_01386}.
CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC {ECO:0000255|HAMAP-Rule:MF_01386}; Single-pass membrane protein
CC {ECO:0000255|HAMAP-Rule:MF_01386}.
CC -!- SIMILARITY: Belongs to the PsbX family. Type 1 subfamily.
CC {ECO:0000255|HAMAP-Rule:MF_01386}.
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DR EMBL; AF041468; AAC35646.1; -; Genomic_DNA.
DR RefSeq; NP_050712.1; NC_000926.1.
DR AlphaFoldDB; O78455; -.
DR SMR; O78455; -.
DR GeneID; 857013; -.
DR HOGENOM; CLU_212837_1_0_1; -.
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:0015979; P:photosynthesis; IEA:UniProtKB-UniRule.
DR HAMAP; MF_01386; PSII_PsbX_1; 1.
DR InterPro; IPR009518; PSII_PsbX.
DR InterPro; IPR023431; PSII_PsbX_type_1_subfam.
DR Pfam; PF06596; PsbX; 1.
PE 3: Inferred from homology;
KW Chloroplast; Membrane; Photosynthesis; Photosystem II; Plastid; Thylakoid;
KW Transmembrane; Transmembrane helix.
FT CHAIN 1..39
FT /note="Photosystem II reaction center X protein"
FT /id="PRO_0000217288"
FT TRANSMEM 11..31
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01386"
SQ SEQUENCE 39 AA; 4171 MW; 6FEB634D4E55D8F1 CRC64;
MTPSLSAFIN SLLLGLFIVV LPIGTALLLV SQSDRVTRN