UniProtKB - P07689 (RBS3_PEA)
Ribulose bisphosphate carboxylase small subunit, chloroplastic 3
RBCS.3A
Functioni
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. Although the small subunit is not catalytic it is essential for maximal activity (Probable). Binds to abscisic acid (ABA); only half of the possible binding sites are occupied in the crystal; and there are indications this is a low affinity site (PubMed:26197050).
2 Publications1 PublicationMiscellaneous
GO - Biological processi
- photorespiration Source: UniProtKB-KW
- reductive pentose-phosphate cycle Source: UniProtKB-KW
Keywordsi
Biological process | Calvin cycle, Carbon dioxide fixation, Photorespiration, Photosynthesis |
Enzyme and pathway databases
BRENDAi | 4.1.1.39, 4872 |
Names & Taxonomyi
Protein namesi | Recommended name: Ribulose bisphosphate carboxylase small subunit, chloroplastic 3UniRule annotationShort name: RuBisCO small subunit 3UniRule annotation Alternative name(s): Ribulose bisphosphate carboxylase small subunit, chloroplastic 3A Short name: RuBisCO small subunit 3A |
Gene namesi | Name:RBCS.3A |
Organismi | Pisum sativum (Garden pea) |
Taxonomic identifieri | 3888 [NCBI] |
Taxonomic lineagei | Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliopsida › eudicotyledons › Gunneridae › Pentapetalae › rosids › fabids › Fabales › Fabaceae › Papilionoideae › 50 kb inversion clade › NPAAA clade › Hologalegina › IRL clade › Fabeae › Pisum |
Subcellular locationi
Chloroplast
- chloroplast UniRule annotation
Chloroplast
- chloroplast Source: UniProtKB-SubCell
Keywords - Cellular componenti
Chloroplast, PlastidPTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Transit peptidei | 1 – 56 | ChloroplastUniRule annotationAdd BLAST | 56 | |
ChainiPRO_0000031542 | 57 – 180 | Ribulose bisphosphate carboxylase small subunit, chloroplastic 3UniRule annotationAdd BLAST | 124 |
Interactioni
Subunit structurei
Heterohexadecamer of 8 large and 8 small subunits.
UniRule annotation2 PublicationsStructurei
Secondary structure
3D structure databases
SMRi | P07689 |
ModBasei | Search... |
PDBe-KBi | Search... |
Family & Domainsi
Sequence similaritiesi
Keywords - Domaini
Transit peptideFamily and domain databases
CDDi | cd03527, RuBisCO_small, 1 hit |
Gene3Di | 3.30.190.10, 1 hit |
HAMAPi | MF_00859, RuBisCO_S_bact, 1 hit |
InterProi | View protein in InterPro IPR024681, RuBisCO_ssu IPR000894, RuBisCO_ssu_dom IPR024680, RuBisCO_ssu_N IPR036385, RuBisCO_ssu_sf |
PANTHERi | PTHR31262, PTHR31262, 1 hit |
Pfami | View protein in Pfam PF12338, RbcS, 1 hit PF00101, RuBisCO_small, 1 hit |
PRINTSi | PR00152, RUBISCOSMALL |
SMARTi | View protein in SMART SM00961, RuBisCO_small, 1 hit |
SUPFAMi | SSF55239, SSF55239, 1 hit |
i Sequence
Sequence statusi: Complete.
: The displayed sequence is further processed into a mature form. Sequence processingi
10 20 30 40 50
MASMISSSAV TTVSRASTVQ SAAVAPFGGL KSMTGFPVKK VNTDITSITS
60 70 80 90 100
NGGRVKCMQV WPPIGKKKFE TLSYLPPLTR DQLLKEVEYL LRKGWVPCLE
110 120 130 140 150
FELEKGFVYR EHNKSPGYYD GRYWTMWKLP MFGTTDASQV LKELDEVVAA
160 170 180
YPQAFVRIIG FDNVRQVQCI SFIAHTPESY
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | X04333 Genomic DNA Translation: CAA27864.1 M21375 Genomic DNA Translation: AAA33683.2 |
PIRi | A27874, RKPMS3 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | X04333 Genomic DNA Translation: CAA27864.1 M21375 Genomic DNA Translation: AAA33683.2 |
PIRi | A27874, RKPMS3 |
3D structure databases
Select the link destinations: PDBei RCSB PDBi PDBji Links Updated | PDB entry | Method | Resolution (Å) | Chain | Positions | PDBsum |
4HHH | X-ray | 2.20 | S/T/U/V | 58-180 | [»] | |
4MKV | X-ray | 2.15 | S/T/U/V | 58-180 | [»] | |
SMRi | P07689 | |||||
ModBasei | Search... | |||||
PDBe-KBi | Search... |
Enzyme and pathway databases
BRENDAi | 4.1.1.39, 4872 |
Family and domain databases
CDDi | cd03527, RuBisCO_small, 1 hit |
Gene3Di | 3.30.190.10, 1 hit |
HAMAPi | MF_00859, RuBisCO_S_bact, 1 hit |
InterProi | View protein in InterPro IPR024681, RuBisCO_ssu IPR000894, RuBisCO_ssu_dom IPR024680, RuBisCO_ssu_N IPR036385, RuBisCO_ssu_sf |
PANTHERi | PTHR31262, PTHR31262, 1 hit |
Pfami | View protein in Pfam PF12338, RbcS, 1 hit PF00101, RuBisCO_small, 1 hit |
PRINTSi | PR00152, RUBISCOSMALL |
SMARTi | View protein in SMART SM00961, RuBisCO_small, 1 hit |
SUPFAMi | SSF55239, SSF55239, 1 hit |
MobiDBi | Search... |
Entry informationi
Entry namei | RBS3_PEA | |
Accessioni | P07689Primary (citable) accession number: P07689 Secondary accession number(s): P12467 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | April 1, 1988 |
Last sequence update: | April 1, 1988 | |
Last modified: | February 23, 2022 | |
This is version 105 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Plant Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
3D-structureDocuments
- PDB cross-references
Index of Protein Data Bank (PDB) cross-references - SIMILARITY comments
Index of protein domains and families