A0A023HQR4 · A0A023HQR4_NEOPR
- ProteinPhotosystem I P700 chlorophyll a apoprotein A2
- GenepsaB
- StatusUniProtKB unreviewed (TrEMBL)
- Amino acids734 (go to sequence)
- Protein existenceInferred from homology
- Annotation score3/5
Function
Catalytic activity
- reduced [plastocyanin] + hnu + oxidized [2Fe-2S]-[ferredoxin] = oxidized [plastocyanin] + reduced [2Fe-2S]-[ferredoxin]
Features
Showing features for binding site.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Binding site | 559 | [4Fe-4S] cluster (UniProtKB | ChEBI); ligand shared between dimeric partners | |||
Binding site | 568 | [4Fe-4S] cluster (UniProtKB | ChEBI); ligand shared between dimeric partners | |||
Binding site | 654 | Mg (UniProtKB | ChEBI) of chlorophyll a B1 (UniProtKB | ChEBI); axial binding residue | |||
Binding site | 662 | Mg (UniProtKB | ChEBI) of chlorophyll a B3 (UniProtKB | ChEBI); axial binding residue | |||
Binding site | 670 | chlorophyll a B3 (UniProtKB | ChEBI) | |||
Binding site | 671 | phylloquinone B (UniProtKB | ChEBI) | |||
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | chloroplast | |
Cellular Component | photosystem I | |
Cellular Component | thylakoid membrane | |
Molecular Function | 4 iron, 4 sulfur cluster binding | |
Molecular Function | chlorophyll binding | |
Molecular Function | electron transfer activity | |
Molecular Function | magnesium ion binding | |
Molecular Function | oxidoreductase activity | |
Biological Process | photosynthesis |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended namePhotosystem I P700 chlorophyll a apoprotein A2
- EC number
- Alternative names
Gene names
Encoded on
- Plastid
Organism names
- Strain
- Taxonomic lineageEukaryota > Rhodophyta > Bangiophyceae > Bangiales > Bangiaceae > Neoporphyra
Accessions
- Primary accessionA0A023HQR4
- Secondary accessions
Subcellular Location
UniProt Annotation
GO Annotation
Cellular thylakoid membrane ; Multi-pass membrane protein
Membrane ; Multi-pass membrane protein
Features
Showing features for transmembrane.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Transmembrane | 51-70 | Helical | |||
Transmembrane | 135-157 | Helical | |||
Transmembrane | 178-199 | Helical | |||
Transmembrane | 334-354 | Helical | |||
Transmembrane | 374-396 | Helical | |||
Transmembrane | 417-438 | Helical | |||
Transmembrane | 517-539 | Helical | |||
Transmembrane | 575-596 | Helical | |||
Transmembrane | 645-665 | Helical | |||
Keywords
- Cellular component
Interaction
Subunit
The PsaA/B heterodimer binds the P700 chlorophyll special pair and subsequent electron acceptors. PSI consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. The eukaryotic PSI reaction center is composed of at least 11 subunits.
Structure
Sequence
- Sequence statusComplete
- Length734
- Mass (Da)82,115
- Last updated2014-07-09 v1
- Checksum0B2E28997AE49AB0
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
KC904971 EMBL· GenBank· DDBJ | AGQ17102.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
KF515972 EMBL· GenBank· DDBJ | AHB35061.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
KF515973 EMBL· GenBank· DDBJ | AHB35270.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
KJ776827 EMBL· GenBank· DDBJ | AIA19432.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
KJ776828 EMBL· GenBank· DDBJ | AIA19641.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
KJ776829 EMBL· GenBank· DDBJ | AIA19850.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
KJ776830 EMBL· GenBank· DDBJ | AIA20059.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
KJ776831 EMBL· GenBank· DDBJ | AIA20268.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
KJ776832 EMBL· GenBank· DDBJ | AIA20477.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
KJ776833 EMBL· GenBank· DDBJ | AIA20686.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
KJ776834 EMBL· GenBank· DDBJ | AIA20895.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
KJ776835 EMBL· GenBank· DDBJ | AIA21104.1 EMBL· GenBank· DDBJ | Genomic DNA |