A0A7T0IGD0 · A0A7T0IGD0_NEOHI
- ProteinRibulose bisphosphate carboxylase large chain
- GenerbcL
- StatusUniProtKB unreviewed (TrEMBL)
- Amino acids476 (go to sequence)
- Protein existenceInferred from homology
- Annotation score3/5
Function
function
RuBisCO catalyzes two reactions: the carboxylation of D-ribulose 1,5-bisphosphate, the primary event in carbon dioxide fixation, as well as the oxidative fragmentation of the pentose substrate in the photorespiration process. Both reactions occur simultaneously and in competition at the same active site.
Miscellaneous
The basic functional RuBisCO is composed of a large chain homodimer in a 'head-to-tail' conformation. In form I RuBisCO this homodimer is arranged in a barrel-like tetramer with the small subunits forming a tetrameric 'cap' on each end of the 'barrel'.
Catalytic activity
- 2 (2R)-3-phosphoglycerate + 2 H+ = D-ribulose 1,5-bisphosphate + CO2 + H2O
- D-ribulose 1,5-bisphosphate + O2 = 2-phosphoglycolate + (2R)-3-phosphoglycerate + 2 H+
Cofactor
Note: Binds 1 Mg2+ ion per subunit.
Features
Showing features for binding site, active site, site.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Binding site | 115 | substrate; in homodimeric partner | |||
Binding site | 165 | substrate | |||
Active site | 167 | Proton acceptor | |||
Binding site | 169 | substrate | |||
Binding site | 193 | Mg2+ (UniProtKB | ChEBI); via carbamate group | |||
Binding site | 195 | Mg2+ (UniProtKB | ChEBI) | |||
Binding site | 196 | Mg2+ (UniProtKB | ChEBI) | |||
Active site | 285 | Proton acceptor | |||
Binding site | 286 | substrate | |||
Binding site | 318 | substrate | |||
Site | 325 | Transition state stabilizer | |||
Binding site | 370 | substrate | |||
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | chloroplast | |
Molecular Function | magnesium ion binding | |
Molecular Function | monooxygenase activity | |
Molecular Function | ribulose-bisphosphate carboxylase activity | |
Biological Process | reductive pentose-phosphate cycle |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameRibulose bisphosphate carboxylase large chain
- EC number
- Short namesRuBisCO large subunit
Gene names
Encoded on
- Chloroplast
Organism names
- Taxonomic lineageEukaryota > Rhodophyta > Bangiophyceae > Bangiales > Bangiaceae > Neoporphyra
Accessions
- Primary accessionA0A7T0IGD0
Subcellular Location
PTM/Processing
Features
Showing features for modified residue.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Modified residue | 193 | N6-carboxylysine | |||
Interaction
Subunit
Heterohexadecamer of 8 large chains and 8 small chains.
Structure
Family & Domains
Features
Showing features for domain.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Domain | 16-136 | Ribulose bisphosphate carboxylase large subunit ferrodoxin-like N-terminal | |||
Domain | 148-453 | Ribulose bisphosphate carboxylase large subunit C-terminal | |||
Sequence similarities
Belongs to the RuBisCO large chain family. Type I subfamily.
Family and domain databases
Sequence
- Sequence statusFragment
- Length476
- Mass (Da)52,586
- Last updated2021-06-02 v1
- MD5 Checksum8F70D538CEA03208D2F00A12E8D436AC
Features
Showing features for non-terminal residue.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Non-terminal residue | 1 | ||||
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
MT025697 EMBL· GenBank· DDBJ | QPK40925.1 EMBL· GenBank· DDBJ | Genomic DNA |