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Annotation rule MF_01316
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General rule information [?]

Accession MF_01316
Dates 26-JUN-2003 (Created)
19-NOV-2019 (Last updated, Version 29)
Name PSII_PsbI
Scope
Bacteria; Cyanobacteria
Plastid
Templates P62103 (PSBI_SPIOL); Q8DJZ6 (PSBI_THEEB); Q54697 (PSBI_SYNY3); P59763 (PSBI_CHLRE); P12240 (PSBI_THEVL); P62102 (PSBI_TOBAC): [Recover all]

Propagated annotation [?]


Identifier, protein and gene names [?]

Identifier
PSBI
case not <OG:Chloroplast>
Protein name
RecName: Full=Photosystem II reaction center protein I;
Short=PSII-I;
AltName: Full=PSII 4.4 kDa protein;
else case <OG:Chloroplast>
Protein name
RecName: Full=Photosystem II reaction center protein I;
Short=PSII-I;
AltName: Full=PSII 4.8 kDa protein;
end case
Gene name
psbI

Comments [?]

Function One of the components of the core complex of photosystem II (PSII), required for its stability and/or assembly. PSII is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation.
case <OC:Cyanobacteria>
Subunit Cyanobacterial PSII is composed of 1 copy each of membrane proteins PsbA, PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK, PsbL, PsbM, PsbT, PsbX, PsbY, PsbZ, Ycf12, at least 3 peripheral proteins PsbO, PsbU, PsbV and a large number of cofactors. It forms dimeric complexes.
else
Subunit PSII is composed of 1 copy each of membrane proteins PsbA, PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK, PsbL, PsbM, PsbT, PsbX, PsbY, PsbZ, Ycf12, at least 3 peripheral proteins of the oxygen-evolving complex and a large number of cofactors. It forms dimeric complexes.
end case
case <OG:Chloroplast>
Subcellular location Plastid, chloroplast thylakoid membrane; Single-pass membrane protein.
else case <OC:Gloeobacter>
Subcellular location Cell inner membrane; Single-pass membrane protein.
else
Subcellular location Cellular thylakoid membrane; Single-pass membrane protein.
end case
Similarity Belongs to the PsbI family.

Keywords [?]

case <OC:Magnoliopsida>
end case
case <OC:Gloeobacter>
else
end case

Gene Ontology [?]

GO:0015979; Biological process: photosynthesis.
case <OG:Chloroplast>
GO:0009535; Cellular component: chloroplast thylakoid membrane.
else case <OC:Gloeobacter>
GO:0005886; Cellular component: plasma membrane.
else
GO:0042651; Cellular component: thylakoid membrane.
end case

Cross-references [?]

Pfam PF02532; PsbI; 1;

Computed features [?]

General Transmembrane; -; 1; trigger=yes;

Additional information [?]

Size range 35-53 amino acids
Related rules None
Fusion None