PSBI_RIPO1
ID PSBI_RIPO1 Reviewed; 38 AA.
AC B7JYE8;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 10-FEB-2009, sequence version 1.
DT 25-MAY-2022, entry version 54.
DE RecName: Full=Photosystem II reaction center protein I {ECO:0000255|HAMAP-Rule:MF_01316};
DE Short=PSII-I {ECO:0000255|HAMAP-Rule:MF_01316};
DE AltName: Full=PSII 4.4 kDa protein {ECO:0000255|HAMAP-Rule:MF_01316};
GN Name=psbI {ECO:0000255|HAMAP-Rule:MF_01316};
GN OrderedLocusNames=PCC8801_3277;
OS Rippkaea orientalis (strain PCC 8801) (Cyanothece sp. (strain PCC 8801)).
OC Bacteria; Cyanobacteria; Oscillatoriophycideae; Chroococcales;
OC Aphanothecaceae; Rippkaea; Rippkaea orientalis.
OX NCBI_TaxID=41431;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PCC 8801;
RX PubMed=21972240; DOI=10.1128/mbio.00214-11;
RA Bandyopadhyay A., Elvitigala T., Welsh E., Stockel J., Liberton M., Min H.,
RA Sherman L.A., Pakrasi H.B.;
RT "Novel metabolic attributes of the genus Cyanothece, comprising a group of
RT unicellular nitrogen-fixing Cyanobacteria.";
RL MBio 2:E214-E214(2011).
CC -!- FUNCTION: One of the components of the core complex of photosystem II
CC (PSII), required for its stability and/or assembly. PSII is a light-
CC driven water:plastoquinone oxidoreductase that uses light energy to
CC abstract electrons from H(2)O, generating O(2) and a proton gradient
CC subsequently used for ATP formation. It consists of a core antenna
CC complex that captures photons, and an electron transfer chain that
CC converts photonic excitation into a charge separation.
CC {ECO:0000255|HAMAP-Rule:MF_01316}.
CC -!- SUBUNIT: Cyanobacterial PSII is composed of 1 copy each of membrane
CC proteins PsbA, PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK,
CC PsbL, PsbM, PsbT, PsbX, PsbY, PsbZ, Ycf12, at least 3 peripheral
CC proteins PsbO, PsbU, PsbV and a large number of cofactors. It forms
CC dimeric complexes. {ECO:0000255|HAMAP-Rule:MF_01316}.
CC -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000255|HAMAP-
CC Rule:MF_01316}; Single-pass membrane protein {ECO:0000255|HAMAP-
CC Rule:MF_01316}.
CC -!- SIMILARITY: Belongs to the PsbI family. {ECO:0000255|HAMAP-
CC Rule:MF_01316}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; CP001287; ACK67250.1; -; Genomic_DNA.
DR RefSeq; WP_012596511.1; NC_011726.1.
DR AlphaFoldDB; B7JYE8; -.
DR SMR; B7JYE8; -.
DR STRING; 41431.PCC8801_3277; -.
DR EnsemblBacteria; ACK67250; ACK67250; PCC8801_3277.
DR KEGG; cyp:PCC8801_3277; -.
DR eggNOG; ENOG5033CII; Bacteria.
DR HOGENOM; CLU_212150_0_0_3; -.
DR OrthoDB; 2079393at2; -.
DR Proteomes; UP000008204; Chromosome.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0009539; C:photosystem II reaction center; IEA:InterPro.
DR GO; GO:0031676; C:plasma membrane-derived thylakoid membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-UniRule.
DR HAMAP; MF_01316; PSII_PsbI; 1.
DR InterPro; IPR003686; PSII_PsbI.
DR InterPro; IPR037271; PSII_PsbI_sf.
DR PANTHER; PTHR35772; PTHR35772; 1.
DR Pfam; PF02532; PsbI; 1.
DR SUPFAM; SSF161041; SSF161041; 1.
PE 3: Inferred from homology;
KW Membrane; Photosynthesis; Photosystem II; Reaction center;
KW Reference proteome; Thylakoid; Transmembrane; Transmembrane helix.
FT CHAIN 1..38
FT /note="Photosystem II reaction center protein I"
FT /id="PRO_1000141338"
FT TRANSMEM 6..26
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01316"
SQ SEQUENCE 38 AA; 4340 MW; 740C152C59339ABC CRC64;
MLTLKIAVYI VVAFFVSLFI FGFLSSDPTR NPGRKDFE
