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P23756

- RBS_GALSU

UniProt

P23756 - RBS_GALSU

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Protein

Ribulose bisphosphate carboxylase small chain

Gene

rbcS

Organism
Galdieria sulphuraria (Red alga)
Status
Reviewed - Annotation score: 3 out of 5- 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 (By similarity).By similarity

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

  1. monooxygenase activity Source: UniProtKB-KW
  2. ribulose-bisphosphate carboxylase activity Source: UniProtKB-EC

GO - Biological processi

  1. photorespiration Source: UniProtKB-KW
  2. reductive pentose-phosphate cycle Source: UniProtKB-KW
Complete GO annotation...

Keywords - Molecular functioni

Lyase, Monooxygenase, Oxidoreductase

Keywords - Biological processi

Calvin cycle, Carbon dioxide fixation, Photorespiration, Photosynthesis

Names & Taxonomyi

Protein namesi
Recommended name:
Ribulose bisphosphate carboxylase small chain (EC:4.1.1.39)
Short name:
RuBisCO small subunit
Gene namesi
Name:rbcS
Encoded oniPlastid; Chloroplast
OrganismiGaldieria sulphuraria (Red alga)
Taxonomic identifieri130081 [NCBI]
Taxonomic lineageiEukaryotaRhodophytaBangiophyceaeCyanidialesCyanidiaceaeGaldieria

Subcellular locationi

GO - Cellular componenti

  1. chloroplast Source: UniProtKB-KW
Complete GO annotation...

Keywords - Cellular componenti

Chloroplast, Plastid

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 138138Ribulose bisphosphate carboxylase small chainPRO_0000198598Add
BLAST

Interactioni

Subunit structurei

8 large chains + 8 small chains.

Protein-protein interaction databases

DIPiDIP-60090N.

Structurei

Secondary structure

1
138
Legend: HelixTurnBeta strand
Show more details
Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Turni7 – 104
Helixi16 – 2813
Beta strandi32 – 398
Beta strandi49 – 524
Helixi61 – 7414
Turni75 – 773
Beta strandi78 – 869
Turni89 – 913
Beta strandi93 – 1019
Beta strandi109 – 1157
Beta strandi121 – 1277
Helixi128 – 1314
Helixi134 – 1363

3D structure databases

Select the link destinations:
PDBe
RCSB PDB
PDBj
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
4F0HX-ray1.96B1-138[»]
4F0KX-ray2.05B1-138[»]
4F0MX-ray2.25B1-138[»]
ProteinModelPortaliP23756.
SMRiP23756. Positions 1-138.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the RuBisCO small chain family.Curated

Family and domain databases

Gene3Di3.30.190.10. 1 hit.
InterProiIPR000894. RuBisCO_sc_dom.
[Graphical view]
PfamiPF00101. RuBisCO_small. 1 hit.
[Graphical view]
SUPFAMiSSF55239. SSF55239. 1 hit.

Sequencei

Sequence statusi: Complete.

P23756-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MRITQGTFSF LPDLTDEQIK KQIDYMISKK LAIGIEYTND IHPRNSFWEM
60 70 80 90 100
WGLPLFEVTD PAPVLFEINA CRKAKSNFYI KVVGFSSERG IESTIISFIV
110 120 130
NRPKHEPGFN LIRQEDKSRS IKYSIQAYET YKPEDQRY
Length:138
Mass (Da):16,206
Last modified:November 1, 1991 - v1
Checksum:i5E946BA51DAFAEC2
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
X55524 Genomic DNA. Translation: CAA39141.2.
AF233069 Genomic DNA. Translation: AAF81682.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
X55524 Genomic DNA. Translation: CAA39141.2 .
AF233069 Genomic DNA. Translation: AAF81682.1 .

3D structure databases

Select the link destinations:
PDBe
RCSB PDB
PDBj
Links Updated
Entry Method Resolution (Å) Chain Positions PDBsum
4F0H X-ray 1.96 B 1-138 [» ]
4F0K X-ray 2.05 B 1-138 [» ]
4F0M X-ray 2.25 B 1-138 [» ]
ProteinModelPortali P23756.
SMRi P23756. Positions 1-138.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

DIPi DIP-60090N.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Family and domain databases

Gene3Di 3.30.190.10. 1 hit.
InterProi IPR000894. RuBisCO_sc_dom.
[Graphical view ]
Pfami PF00101. RuBisCO_small. 1 hit.
[Graphical view ]
SUPFAMi SSF55239. SSF55239. 1 hit.
ProtoNeti Search...

Publicationsi

  1. "Structure of the Rubisco operon from the unicellular red alga Cyanidium caldarium: evidence for a polyphyletic origin of the plastids."
    Valentin K.-U., Zetsche K.
    Mol. Gen. Genet. 222:425-430(1990) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
    Strain: 14-1-1 / Isolate 107.79/Goettingen.
  2. Whitney S.M., Andrews J.
    Submitted (FEB-2000) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
    Strain: UTEX 2393.

Entry informationi

Entry nameiRBS_GALSU
AccessioniPrimary (citable) accession number: P23756
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 1, 1991
Last sequence update: November 1, 1991
Last modified: October 29, 2014
This is version 76 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)

Miscellaneousi

Miscellaneous

In this alga, in contrast to plants, the small subunit is encoded in the chloroplast.

Keywords - Technical termi

3D-structure

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3