O49347 · PSBY_ARATH
- ProteinPhotosystem II reaction center proteins PsbY, chloroplastic
- GenePSBY
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids189 (go to sequence)
- Protein existenceEvidence at protein level
- Annotation score4/5
Function
function
Loosely associated component of the core of photosystem II (PSII), it is not always seen in crystals. PSII is a light-driven water plastoquinone oxidoreductase, using light energy to abstract electrons from H2O, generating a proton gradient subsequently used for ATP formation.
Miscellaneous
The central hydrophobic segment (residues 118-138) does not form a membrane-spanning region but could serve as a targeting signal for processing of the precursor in the thylakoid membrane.
GO annotations
all annotations | all molecular function | nucleotide binding | molecular_function | nucleic acid binding | dna binding | chromatin binding | dna-binding transcription factor activity | rna binding | cytoskeletal motor activity | catalytic activity | nuclease activity | signaling receptor binding | structural molecule activity | transporter activity | binding | protein binding | translation factor activity, rna binding | lipid binding | kinase activity | transferase activity | hydrolase activity | oxygen binding | enzyme regulator activity | carbohydrate binding | signaling receptor activity | translation regulator activity | transcription regulator activity | other molecular function | all biological process | carbohydrate metabolic process | generation of precursor metabolites and energy | nucleobase-containing compound metabolic process | dna metabolic process | translation | lipid metabolic process | transport | response to stress | cell cycle | cell communication | signal transduction | cell-cell signaling | multicellular organism development | circadian rhythm | biological_process | metabolic process | catabolic process | biosynthetic process | response to light stimulus | response to external stimulus | tropism | response to biotic stimulus | response to abiotic stimulus | response to endogenous stimulus | embryo development | post-embryonic development | fruit ripening | abscission | pollination | flower development | cellular process | programmed cell death | photosynthesis | cellular component organization | cell growth | protein metabolic process | cellular homeostasis | secondary metabolic process | reproductive process | cell differentiation | protein modification process | growth | epigenetic regulation of gene expression | response to chemical | anatomical structure development | regulation of molecular function | other biological process | all cellular component | cellular_component | extracellular region | cell wall | intracellular anatomical structure | nucleus | nuclear envelope | nucleoplasm | nucleolus | cytoplasm | mitochondrion | lysosome | endosome | vacuole | peroxisome | endoplasmic reticulum | golgi apparatus | cytosol | ribosome | cytoskeleton | plasma membrane | chloroplast | plastid | thylakoid | membrane | external encapsulating structure | other cellular component | |||
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Aspect | Term | |
---|---|---|
Cellular Component | chloroplast stromal thylakoid | |
Cellular Component | chloroplast thylakoid membrane | |
Cellular Component | photosystem II | |
Molecular Function | manganese ion binding | |
Biological Process | cell redox homeostasis | |
Biological Process | photoinhibition | |
Biological Process | photosynthesis |
Keywords
- Biological process
- Ligand
Enzyme and pathway databases
Protein family/group databases
Names & Taxonomy
Protein names
- Recommended namePhotosystem II reaction center proteins PsbY, chloroplastic
- Alternative names
- Cleaved into 2 chains
Gene names
Organism names
- Strain
- Taxonomic lineageEukaryota > Viridiplantae > Streptophyta > Embryophyta > Tracheophyta > Spermatophyta > Magnoliopsida > eudicotyledons > Gunneridae > Pentapetalae > rosids > malvids > Brassicales > Brassicaceae > Camelineae > Arabidopsis
Accessions
- Primary accessionO49347
Proteomes
Organism-specific databases
Genome annotation databases
Subcellular Location
UniProt Annotation
GO Annotation
Plastid, chloroplast thylakoid membrane ; Multi-pass membrane protein
Note: Imports into spinach thylakoid membranes.
Features
Showing features for topological domain, transmembrane.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Topological domain | 75-83 | Lumenal | ||||
Sequence: AANASSDNR | ||||||
Transmembrane | 84-104 | Helical | ||||
Sequence: GLALLLPIVPAIAWVLYNILQ | ||||||
Topological domain | 105-117 | Stromal | ||||
Sequence: PAINQVNKMRESK | ||||||
Transmembrane | 118-138 | Helical | ||||
Sequence: GIVVGLGIGGGLAASGLLTPP | ||||||
Topological domain | 139-157 | Lumenal | ||||
Sequence: PEAYAAAEAAAASSDSRGQ | ||||||
Transmembrane | 158-178 | Helical | ||||
Sequence: LLLIVVTPALLWVLYNILQPA | ||||||
Topological domain | 179-189 | Stromal | ||||
Sequence: LNQINKMRSGD |
Keywords
- Cellular component
PTM/Processing
Features
Showing features for transit peptide, chain, propeptide.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Transit peptide | 1-74 | Chloroplast | ||||
Sequence: MAAAMATATKCMSLNPSPPKLQNQTKSKPFISLPTPPKPNVSLAVTSTALAGAVFSSLSYSEPALAIQQIAQLA | ||||||
Chain | PRO_0000029610 | 75-117 | Photosystem II reaction center protein PsbY-1, chloroplastic | |||
Sequence: AANASSDNRGLALLLPIVPAIAWVLYNILQPAINQVNKMRESK | ||||||
Propeptide | PRO_0000029611 | 118-143 | ||||
Sequence: GIVVGLGIGGGLAASGLLTPPPEAYA | ||||||
Chain | PRO_0000029612 | 144-189 | Photosystem II reaction center protein PsbY-2, chloroplastic | |||
Sequence: AAEAAAASSDSRGQLLLIVVTPALLWVLYNILQPALNQINKMRSGD |
Proteomic databases
PTM databases
Expression
Gene expression databases
Interaction
Protein-protein interaction databases
Structure
Family & Domains
Features
Showing features for region, compositional bias.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Region | 1-24 | Disordered | ||||
Sequence: MAAAMATATKCMSLNPSPPKLQNQ | ||||||
Compositional bias | 10-24 | Polar residues | ||||
Sequence: KCMSLNPSPPKLQNQ |
Sequence similarities
Belongs to the PsbY family.
Keywords
- Domain
Phylogenomic databases
Family and domain databases
Sequence
- Sequence statusComplete
- Sequence processingThe displayed sequence is further processed into a mature form.
- Length189
- Mass (Da)19,465
- Last updated1998-06-01 v1
- Checksum3D71B983156B1D8D
Features
Showing features for compositional bias.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Compositional bias | 10-24 | Polar residues | ||||
Sequence: KCMSLNPSPPKLQNQ |
Keywords
- Technical term
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
AJ223306 EMBL· GenBank· DDBJ | CAA11248.1 EMBL· GenBank· DDBJ | mRNA | ||
AF079800 EMBL· GenBank· DDBJ | AAC95011.1 EMBL· GenBank· DDBJ | mRNA | ||
AC008113 EMBL· GenBank· DDBJ | AAG28890.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
CP002684 EMBL· GenBank· DDBJ | AEE34689.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
AY050391 EMBL· GenBank· DDBJ | AAK91408.1 EMBL· GenBank· DDBJ | mRNA | ||
AY052269 EMBL· GenBank· DDBJ | AAK97739.1 EMBL· GenBank· DDBJ | mRNA | ||
AY097348 EMBL· GenBank· DDBJ | AAM19864.1 EMBL· GenBank· DDBJ | mRNA |