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Protein

Ribulose bisphosphate carboxylase small chain 2, chloroplastic

Gene

RBCS2

Organism
Spinacia oleracea (Spinach)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

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.

Catalytic activityi

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.

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionLyase, Monooxygenase, Oxidoreductase
Biological processCarbon dioxide fixation, Photorespiration, Photosynthesis

Names & Taxonomyi

Protein namesi
Recommended name:
Ribulose bisphosphate carboxylase small chain 2, chloroplastic (EC:4.1.1.39)
Short name:
RuBisCO small subunit 2
Gene namesi
Name:RBCS2
OrganismiSpinacia oleracea (Spinach)
Taxonomic identifieri3562 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaeCaryophyllalesChenopodiaceaeChenopodioideaeAnserineaeSpinacia

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cell wall Cytoskeleton Vacuole Chloroplast Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertion Graphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Chloroplast, Plastid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transit peptidei1 – 57ChloroplastBy similarityAdd BLAST57
ChainiPRO_000003155858 – 180Ribulose bisphosphate carboxylase small chain 2, chloroplasticAdd BLAST123

Proteomic databases

PRIDEiQ43832

Interactioni

Subunit structurei

8 large chains + 8 small chains.6 Publications

Protein-protein interaction databases

IntActiQ43832, 1 interactor
MINTiQ43832

Structurei

Secondary structure

1180
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Turni71 – 74Combined sources4
Helixi80 – 92Combined sources13
Beta strandi96 – 104Combined sources9
Beta strandi125 – 128Combined sources4
Helixi137 – 150Combined sources14
Beta strandi154 – 162Combined sources9
Turni163 – 166Combined sources4
Beta strandi167 – 175Combined sources9

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1AA1X-ray2.20C/F/I/S58-180[»]
1AUSX-ray2.20S/T/U/V58-180[»]
1IR1X-ray1.80S/T/U/V58-180[»]
1UPMX-ray2.30C/F/I/M/P/S/T/W58-180[»]
1UPPX-ray2.30I/J/K/L58-180[»]
1UZDX-ray2.40C/F/I/J/M/P/T/W103-121[»]
ProteinModelPortaliQ43832
SMRiQ43832
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiQ43832

Family & Domainsi

Sequence similaritiesi

Belongs to the RuBisCO small chain family.Curated

Keywords - Domaini

Transit peptide

Family and domain databases

Gene3Di3.30.190.10, 1 hit
InterProiView protein in InterPro
IPR024681 RuBisCO_sc
IPR000894 RuBisCO_sc_dom
IPR024680 RuBisCO_ssu_N
IPR036385 RuBisCO_ssu_sf
PfamiView protein in Pfam
PF12338 RbcS, 1 hit
PF00101 RuBisCO_small, 1 hit
PRINTSiPR00152 RUBISCOSMALL
SMARTiView protein in SMART
SM00961 RuBisCO_small, 1 hit
SUPFAMiSSF55239 SSF55239, 1 hit

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q43832-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MASSVLSSAA VATVSRTPAQ ASMVAPFTGL KSTVGFPATK KNDDITSLAS
60 70 80 90 100
NGGRVQCMKV WPTQNMKRYE TLSYLPPLTT DQLARQVDYL LNNKWVPCLE
110 120 130 140 150
FETDHGFVYR EHHNSPGYYD GRYWTMWKLP MFGCTDPAQV LNELEECKKE
160 170 180
YPNAFIRIIG FDSNRQVQCV SFIAYKPAGY
Length:180
Mass (Da):20,326
Last modified:November 1, 1996 - v1
Checksum:i651FF2F212CFD64A
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X97600 mRNA Translation: CAA66201.1
PIRiS78083

Similar proteinsi

Entry informationi

Entry nameiRBS2_SPIOL
AccessioniPrimary (citable) accession number: Q43832
Entry historyiIntegrated into UniProtKB/Swiss-Prot: December 15, 1998
Last sequence update: November 1, 1996
Last modified: May 23, 2018
This is version 118 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure

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