B3SGU8 · B3SGU8_9LILI
- ProteinPhotosystem II D2 protein
- GenepsbD
- StatusUniProtKB unreviewed (TrEMBL)
- Organism
- Amino acids326 (go to sequence)
- Protein existenceInferred from homology
- Annotation score2/5
Function
function
Photosystem II (PSII) is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H2O, generating O2 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. The D1/D2 (PsbA/PsbD) reaction center heterodimer binds P680, the primary electron donor of PSII as well as several subsequent electron acceptors. D2 is needed for assembly of a stable PSII complex.
Catalytic activity
- 2 a plastoquinone + 4 hnu + 2 H2O = 2 a plastoquinol + O2
2 a plastoquinone RHEA-COMP:9562 + 4 CHEBI:30212 + 2 CHEBI:15377 = 2 a plastoquinol RHEA-COMP:9561 + CHEBI:15379
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 thylakoid membrane | |
Cellular Component | photosystem II | |
Molecular Function | chlorophyll binding | |
Molecular Function | electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity | |
Molecular Function | metal ion binding | |
Molecular Function | oxygen evolving activity | |
Biological Process | photosynthetic electron transport in photosystem II |
Keywords
- Biological process
- Ligand
Names & Taxonomy
Protein names
- Recommended namePhotosystem II D2 protein
Gene names
Encoded on
- Plastid
Organism names
- Organism
- Taxonomic lineageEukaryota > Viridiplantae > Streptophyta > Embryophyta > Tracheophyta > Spermatophyta > Magnoliopsida > Liliopsida > Commelinales > Philydraceae > Helmholtzia
Accessions
- Primary accessionB3SGU8
Subcellular Location
UniProt Annotation
GO Annotation
Membrane ; Multi-pass membrane protein
Features
Showing features for transmembrane.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Transmembrane | 6-33 | Helical | ||||
Sequence: WSGLLLFPCAYFALGGWFTGTTFVTSWY | ||||||
Transmembrane | 84-102 | Helical | ||||
Sequence: LWTFVALHGAFGLMGFMLR | ||||||
Transmembrane | 114-134 | Helical | ||||
Sequence: PYNAIAFSGPIAVFVSVFLIY | ||||||
Transmembrane | 140-158 | Helical | ||||
Sequence: GWFFAPSFGVAAIFRFILF | ||||||
Transmembrane | 170-190 | Helical | ||||
Sequence: FHMMGVAGVLGAALLCAIHGA | ||||||
Transmembrane | 240-265 | Helical | ||||
Sequence: WLHFFMLFVPVTGLWMSAIGVVGLAL |
Keywords
- Cellular component
PTM/Processing
Keywords
- PTM
Structure
Sequence
- Sequence statusFragment
- Length326
- Mass (Da)36,256
- Last updated2008-09-02 v1
- ChecksumB91A9786276EA40F
Features
Showing features for non-terminal residue.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Non-terminal residue | 1 | |||||
Sequence: F |