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Protein

Ribulose bisphosphate carboxylase small chain

Gene

rbcS

Organism
Cyanidioschyzon merolae (Red alga)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

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
OrganismiCyanidioschyzon merolae (Red alga)
Taxonomic identifieri45157 [NCBI]
Taxonomic lineageiEukaryotaRhodophytaBangiophyceaeCyanidialesCyanidiaceaeCyanidioschyzon

Subcellular locationi

GO - Cellular componenti

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

Keywords - Cellular componenti

Chloroplast, Plastid

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 138138Ribulose bisphosphate carboxylase small chainPRO_0000198593Add
BLAST

Interactioni

Subunit structurei

8 large chains + 8 small chains.

Structurei

3D structure databases

ProteinModelPortaliO22024.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the RuBisCO small chain family.Curated

Phylogenomic databases

OMAiYIPAVEF.
PhylomeDBiO22024.

Family and domain databases

Gene3Di3.30.190.10. 1 hit.
InterProiIPR000894. RuBisCO_sc_dom.
[Graphical view]
PfamiPF00101. RuBisCO_small. 1 hit.
[Graphical view]
SMARTiSM00961. RuBisCO_small. 1 hit.
[Graphical view]
SUPFAMiSSF55239. SSF55239. 1 hit.

Sequencei

Sequence statusi: Complete.

O22024-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MRVTQGTFCY LPDLTDEQIR KQIQYAINQG WAVSVEYTDD PHPRNSYWEM
60 70 80 90 100
WGLPLFDVKD PATIMFEVQE CRKQFPNHYI KVLAFNSTKG IESTALSFIV
110 120 130
NRPANEPGFV LRRIESNDRV QRYQIHSYAT EKPEGSRY
Length:138
Mass (Da):16,225
Last modified:January 1, 1998 - v1
Checksum:i584F64F1709104A8
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
D63675 Genomic DNA. Translation: BAA22820.1.
AB002583 Genomic DNA. Translation: BAC76108.1.
RefSeqiNP_848946.1. NC_004799.1.

Genome annotation databases

GeneIDi844965.
KEGGicme:CymeCp014.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
D63675 Genomic DNA. Translation: BAA22820.1.
AB002583 Genomic DNA. Translation: BAC76108.1.
RefSeqiNP_848946.1. NC_004799.1.

3D structure databases

ProteinModelPortaliO22024.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi844965.
KEGGicme:CymeCp014.

Phylogenomic databases

OMAiYIPAVEF.
PhylomeDBiO22024.

Family and domain databases

Gene3Di3.30.190.10. 1 hit.
InterProiIPR000894. RuBisCO_sc_dom.
[Graphical view]
PfamiPF00101. RuBisCO_small. 1 hit.
[Graphical view]
SMARTiSM00961. RuBisCO_small. 1 hit.
[Graphical view]
SUPFAMiSSF55239. SSF55239. 1 hit.
ProtoNetiSearch...

Publicationsi

« Hide 'large scale' publications
  1. "Analysis of a plastid gene cluster reveals a close relationship between Cyanidioschyzon and Cyanidium."
    Ohta N., Sato N., Ueda K., Kuroiwa T.
    J. Plant Res. 110:235-245(1997)
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
  2. "Complete sequence and analysis of the plastid genome of the unicellular red alga Cyanidioschyzon merolae."
    Ohta N., Matsuzaki M., Misumi O., Miyagishima S.-Y., Nozaki H., Tanaka K., Shin-i T., Kohara Y., Kuroiwa T.
    DNA Res. 10:67-77(2003) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: 10D.

Entry informationi

Entry nameiRBS_CYAME
AccessioniPrimary (citable) accession number: O22024
Entry historyi
Integrated into UniProtKB/Swiss-Prot: December 15, 1998
Last sequence update: January 1, 1998
Last modified: February 4, 2015
This is version 78 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.

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into Uniref entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.