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Protein

Ribulose bisphosphate carboxylase small chain

Gene

cbbS

Organism
Halothiobacillus neapolitanus (strain ATCC 23641 / c2) (Thiobacillus neapolitanus)
Status
Reviewed-Annotation score: 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.

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

Complete GO annotation...

Keywords - Molecular functioni

Lyase, Monooxygenase, Oxidoreductase

Keywords - Biological processi

Calvin cycle, Carbon dioxide fixation

Enzyme and pathway databases

BioCyciHNEA555778:GIVV-950-MONOMER.
BRENDAi4.1.1.39. 6349.

Names & Taxonomyi

Protein namesi
Recommended name:
Ribulose bisphosphate carboxylase small chain (EC:4.1.1.39)
Short name:
RuBisCO small subunit
Gene namesi
Name:cbbS
Synonyms:rbcS
Ordered Locus Names:Hneap_0921
OrganismiHalothiobacillus neapolitanus (strain ATCC 23641 / c2) (Thiobacillus neapolitanus)
Taxonomic identifieri555778 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaChromatialesHalothiobacillaceaeHalothiobacillus
Proteomesi
  • UP000009102 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001986311 – 110Ribulose bisphosphate carboxylase small chainAdd BLAST110

Interactioni

Subunit structurei

8 large chains + 8 small chains.

Protein-protein interaction databases

STRINGi555778.Hneap_0921.

Structurei

Secondary structure

1110
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Turni15 – 18Combined sources4
Helixi24 – 36Combined sources13
Beta strandi40 – 46Combined sources7
Helixi48 – 50Combined sources3
Beta strandi57 – 60Combined sources4
Helixi69 – 82Combined sources14
Beta strandi86 – 94Combined sources9
Turni95 – 98Combined sources4
Beta strandi99 – 107Combined sources9

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1SVDX-ray1.80M1-110[»]
ProteinModelPortaliP45686.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP45686.

Family & Domainsi

Sequence similaritiesi

Belongs to the RuBisCO small chain family.Curated

Phylogenomic databases

eggNOGiENOG4108VFZ. Bacteria.
COG4451. LUCA.
HOGENOMiHOG000141332.
KOiK01602.
OMAiWNPAIEH.
OrthoDBiPOG091H13LH.

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.

P45686-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAEMQDYKQS LKYETFSYLP PMNAERIRAQ IKYAIAQGWS PGIEHVEVKN
60 70 80 90 100
SMNQYWYMWK LPFFGEQNVD NVLAEIEACR SAYPTHQVKL VAYDNYAQSL
110
GLAFVVYRGN
Length:110
Mass (Da):12,855
Last modified:November 1, 1995 - v1
Checksum:i9C4F1AB8D29B104D
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF038430 Genomic DNA. Translation: AAC32550.1.
CP001801 Genomic DNA. Translation: ACX95764.1.
RefSeqiWP_012823800.1. NC_013422.1.

Genome annotation databases

EnsemblBacteriaiACX95764; ACX95764; Hneap_0921.
KEGGihna:Hneap_0921.
PATRICi32205716. VBIHalNea120669_0940.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF038430 Genomic DNA. Translation: AAC32550.1.
CP001801 Genomic DNA. Translation: ACX95764.1.
RefSeqiWP_012823800.1. NC_013422.1.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1SVDX-ray1.80M1-110[»]
ProteinModelPortaliP45686.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi555778.Hneap_0921.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiACX95764; ACX95764; Hneap_0921.
KEGGihna:Hneap_0921.
PATRICi32205716. VBIHalNea120669_0940.

Phylogenomic databases

eggNOGiENOG4108VFZ. Bacteria.
COG4451. LUCA.
HOGENOMiHOG000141332.
KOiK01602.
OMAiWNPAIEH.
OrthoDBiPOG091H13LH.

Enzyme and pathway databases

BioCyciHNEA555778:GIVV-950-MONOMER.
BRENDAi4.1.1.39. 6349.

Miscellaneous databases

EvolutionaryTraceiP45686.

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...

Entry informationi

Entry nameiRBS_HALNC
AccessioniPrimary (citable) accession number: P45686
Secondary accession number(s): D0KZ91
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 1, 1995
Last sequence update: November 1, 1995
Last modified: October 5, 2016
This is version 88 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Reference proteome

Documents

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

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.