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Protein

Ribulose bisphosphate carboxylase small chain 8B, chloroplastic

Gene

RBCS-8B

Organism
Nicotiana plumbaginifolia (Leadwort-leaved tobacco) (Tex-Mex tobacco)
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

GO - Biological processi

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 8B, chloroplastic (EC:4.1.1.39)
Short name:
RuBisCO small subunit 8B
Gene namesi
Name:RBCS-8B
OrganismiNicotiana plumbaginifolia (Leadwort-leaved tobacco) (Tex-Mex tobacco)
Taxonomic identifieri4092 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaeasteridslamiidsSolanalesSolanaceaeNicotianoideaeNicotianeaeNicotiana

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Chloroplast, Plastid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transit peptidei1 – 57ChloroplastBy similarityAdd BLAST57
ChainiPRO_000003153458 – 180Ribulose bisphosphate carboxylase small chain 8B, chloroplasticAdd BLAST123

Proteomic databases

PRIDEiP26573.

Interactioni

Subunit structurei

8 large chains + 8 small chains.

Structurei

3D structure databases

ProteinModelPortaliP26573.
SMRiP26573.
ModBaseiSearch...
MobiDBiSearch...

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.
InterProiIPR024681. RuBisCO_sc.
IPR000894. RuBisCO_sc_dom.
IPR024680. RuBisCO_ssu_N.
[Graphical view]
PfamiPF12338. RbcS. 1 hit.
PF00101. RuBisCO_small. 1 hit.
[Graphical view]
PRINTSiPR00152. RUBISCOSMALL.
SMARTiSM00961. RuBisCO_small. 1 hit.
[Graphical view]
SUPFAMiSSF55239. SSF55239. 1 hit.

Sequencei

Sequence statusi: Complete.

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

P26573-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MASSVLSSAA VATRSNVAQA NMVAPFTGLK SAASFPVSRK QNLDITSIAS
60 70 80 90 100
NGGRVQCMQV WPPINKKKYE TLSYLPDLSQ EQLLSEIEYL LKSGWVPCLE
110 120 130 140 150
FETERGFVYR EHHHSPGYYD GRYWTMWKLP MFGCTDATQV LAEVEEAKKA
160 170 180
YPQAWVRIIG FDNVRQVQCI SFIAYKPEGY
Length:180
Mass (Da):20,358
Last modified:August 1, 1992 - v1
Checksum:i80E780E5FD2EE438
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M36685 Genomic DNA. Translation: AAA34110.1.
X13711 Genomic DNA. Translation: CAA31994.1.
PIRiS08318. RKNTSV.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M36685 Genomic DNA. Translation: AAA34110.1.
X13711 Genomic DNA. Translation: CAA31994.1.
PIRiS08318. RKNTSV.

3D structure databases

ProteinModelPortaliP26573.
SMRiP26573.
ModBaseiSearch...
MobiDBiSearch...

Proteomic databases

PRIDEiP26573.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Family and domain databases

Gene3Di3.30.190.10. 1 hit.
InterProiIPR024681. RuBisCO_sc.
IPR000894. RuBisCO_sc_dom.
IPR024680. RuBisCO_ssu_N.
[Graphical view]
PfamiPF12338. RbcS. 1 hit.
PF00101. RuBisCO_small. 1 hit.
[Graphical view]
PRINTSiPR00152. RUBISCOSMALL.
SMARTiSM00961. RuBisCO_small. 1 hit.
[Graphical view]
SUPFAMiSSF55239. SSF55239. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiRBS8_NICPL
AccessioniPrimary (citable) accession number: P26573
Entry historyi
Integrated into UniProtKB/Swiss-Prot: August 1, 1992
Last sequence update: August 1, 1992
Last modified: November 2, 2016
This is version 76 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Documents

  1. 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.