P00870 (RBS1_SPIOL) Reviewed, UniProtKB/Swiss-Prot
Last modified
April 3, 2013.
Version 96.
History...
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Web links·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Web links·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Ribulose bisphosphate carboxylase small chain Short name=RuBisCO small subunit EC=4.1.1.39 | ||
| Gene names |
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| Organism | Spinacia oleracea (Spinach) | ||
| Taxonomic identifier | 3562 [NCBI] | ||
| Taxonomic lineage | Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliophyta › eudicotyledons › core eudicotyledons › Caryophyllales › Amaranthaceae › Spinacia![]() |
Protein attributes
| Sequence length | 123 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| 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. Both reactions occur simultaneously and in competition at the same active site. |
| Catalytic activity | 2 3-phospho-D-glycerate + 2 H+ = D-ribulose 1,5-bisphosphate + CO2 + H2O. 3-phospho-D-glycerate + 2-phosphoglycolate = D-ribulose 1,5-bisphosphate + O2. |
| Subunit structure | 8 large chains + 8 small chains. |
| Subcellular location | |
| Sequence similarities | Belongs to the RuBisCO small chain family. |
Ontologies
| Keywords | |
|---|---|
| Biological process | Carbon dioxide fixation Photorespiration Photosynthesis |
| Cellular component | Chloroplast Plastid |
| Molecular function | Lyase Monooxygenase Oxidoreductase |
| Technical term | 3D-structure Direct protein sequencing |
| Gene Ontology (GO) | |
| Biological_process | carbon fixation Inferred from electronic annotation. Source: UniProtKB-KW photorespirationInferred from electronic annotation. Source: UniProtKB-KW photosynthesisInferred from electronic annotation. Source: UniProtKB-KW |
| Cellular_component | chloroplast Inferred from electronic annotation. Source: UniProtKB-SubCell |
| Molecular_function | monooxygenase activity Inferred from electronic annotation. Source: UniProtKB-KW ribulose-bisphosphate carboxylase activityInferred from electronic annotation. Source: EC |
| Complete GO annotation... | |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||||||||||||||||
Molecule processing | |||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 123 | 123 | Ribulose bisphosphate carboxylase small chain | PRO_0000198589 | |||||||||||||||||||
Amino acid modifications | |||||||||||||||||||||||
| Modified residue | 1 | 1 | Methionine derivative | ||||||||||||||||||||
Natural variations | |||||||||||||||||||||||
| Natural variant | 94 | 1 | P → Y. | ||||||||||||||||||||
Secondary structure | |||||||||||||||||||||||
Helix Strand Turn | |||||||||||||||||||||||
| Turn | 14 – 17 | 4 | |||||||||||||||||||||
| Helix | 23 – 35 | 13 | |||||||||||||||||||||
| Beta strand | 39 – 47 | 9 | |||||||||||||||||||||
| Beta strand | 68 – 71 | 4 | |||||||||||||||||||||
| Helix | 80 – 93 | 14 | |||||||||||||||||||||
| Beta strand | 97 – 105 | 9 | |||||||||||||||||||||
| Turn | 106 – 109 | 4 | |||||||||||||||||||||
| Beta strand | 110 – 118 | 9 | |||||||||||||||||||||
Sequences
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References
| [1] | "Amino acid sequence of the small subunit of ribulose-1,5-bisphosphate carboxylase from spinach." Martin P.G. Aust. J. Plant Physiol. 6:401-408(1979) Cited for: PROTEIN SEQUENCE. |
| [2] | Martin P.G. Submitted (OCT-1982) to the PIR data bank Cited for: SEQUENCE REVISION TO 68-70. |
| + | Additional computationally mapped references. |
Web resources
| Protein Spotlight The Plant Kingdom's sloth - Issue 38 of September 2003 |
Cross-references
Sequence databases | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PIR | RKSPS. A01089. | ||||||||||||||||||||||||||||||||||||
3D structure databases | |||||||||||||||||||||||||||||||||||||
| PDBe RCSB PDB PDBj |
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| ProteinModelPortal | P00870. | ||||||||||||||||||||||||||||||||||||
| SMR | P00870. Positions 1-123. | ||||||||||||||||||||||||||||||||||||
| ModBase | Search... | ||||||||||||||||||||||||||||||||||||
Protein-protein interaction databases | |||||||||||||||||||||||||||||||||||||
| DIP | DIP-27640N. | ||||||||||||||||||||||||||||||||||||
Protein family/group databases | |||||||||||||||||||||||||||||||||||||
| Allergome | 3814. Spi o RuBisCO. | ||||||||||||||||||||||||||||||||||||
Proteomic databases | |||||||||||||||||||||||||||||||||||||
| ProMEX | P00870. | ||||||||||||||||||||||||||||||||||||
Protocols and materials databases | |||||||||||||||||||||||||||||||||||||
| StructuralBiologyKnowledgebase | Search... | ||||||||||||||||||||||||||||||||||||
Family and domain databases | |||||||||||||||||||||||||||||||||||||
| Gene3D | 3.30.190.10. 1 hit. | ||||||||||||||||||||||||||||||||||||
| InterPro | IPR024681. RuBisCO_sc. IPR000894. RuBisCO_sc_dom. [Graphical view] | ||||||||||||||||||||||||||||||||||||
| Pfam | PF00101. RuBisCO_small. 1 hit. [Graphical view] | ||||||||||||||||||||||||||||||||||||
| PRINTS | PR00152. RUBISCOSMALL. | ||||||||||||||||||||||||||||||||||||
| SUPFAM | SSF55239. RuBisCO_small. 1 hit. | ||||||||||||||||||||||||||||||||||||
| ProtoNet | Search... | ||||||||||||||||||||||||||||||||||||
Other | |||||||||||||||||||||||||||||||||||||
| EvolutionaryTrace | P00870. | ||||||||||||||||||||||||||||||||||||
Entry information
| Entry name | RBS1_SPIOL | ||||||||
| Accession | Primary (citable) accession number: P00870 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Plant Protein Annotation Program | ||||||||
Relevant documents
| PDB cross-references Index of Protein Data Bank (PDB) cross-references |
| SIMILARITY comments Index of protein domains and families |

Clusters with
