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Protein

Ribulose bisphosphate carboxylase small chain

Gene

rbcS

Organism
Cyanidioschyzon merolae (strain 10D) (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

Miscellaneous

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

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 processCalvin 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 (strain 10D) (Red alga)
Taxonomic identifieri280699 [NCBI]
Taxonomic lineageiEukaryotaRhodophytaBangiophyceaeCyanidialesCyanidiaceaeCyanidioschyzon
Proteomesi
  • UP000007014 Componenti: Chloroplast

Subcellular locationi

GO - Cellular componenti

Keywords - Cellular componenti

Chloroplast, Plastid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001985931 – 138Ribulose bisphosphate carboxylase small chainAdd BLAST138

Interactioni

Subunit structurei

8 large chains + 8 small chains.

Protein-protein interaction databases

STRINGi45157.CMV014CT.

Structurei

3D structure databases

ProteinModelPortaliO22024.
SMRiO22024.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the RuBisCO small chain family.Curated

Phylogenomic databases

eggNOGiENOG410IWI6. Eukaryota.
COG4451. LUCA.
KOiK01602.
OMAiKQCQVLS.

Family and domain databases

Gene3Di3.30.190.10. 1 hit.
InterProiView protein in InterPro
IPR000894. RuBisCO_sc_dom.
PfamiView protein in Pfam
PF00101. RuBisCO_small. 1 hit.
SMARTiView protein in SMART
SM00961. RuBisCO_small. 1 hit.
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

EnsemblPlantsiCMV014CT; CMV014CT; CMV014C.
GeneIDi844965.
GrameneiCMV014CT; CMV014CT; CMV014C.
KEGGicme:CymeCp014.

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 one 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.

Entry informationi

Entry nameiRBS_CYAM1
AccessioniPrimary (citable) accession number: O22024
Entry historyiIntegrated into UniProtKB/Swiss-Prot: December 15, 1998
Last sequence update: January 1, 1998
Last modified: June 7, 2017
This is version 92 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families