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Protein

Ribulose bisphosphate carboxylase large chain

Gene

rbcL

Organism
Brexia madagascariensis
Status
Reviewed-Annotation score: Annotation score: 4 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 in the photorespiration process. Both reactions occur simultaneously and in competition at the same active site.UniRule annotation

Catalytic activityi

2 3-phospho-D-glycerate + 2 H+ = D-ribulose 1,5-bisphosphate + CO2 + H2O.UniRule annotation
3-phospho-D-glycerate + 2-phosphoglycolate = D-ribulose 1,5-bisphosphate + O2.UniRule annotation

Cofactori

Mg2+UniRule annotationNote: Binds 1 Mg2+ ion per subunit.UniRule annotation

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei123Substrate; in homodimeric partnerUniRule annotation1
Binding sitei173SubstrateUniRule annotation1
Active sitei175Proton acceptorUniRule annotation1
Binding sitei177SubstrateUniRule annotation1
Metal bindingi201Magnesium; via carbamate groupUniRule annotation1
Metal bindingi203MagnesiumUniRule annotation1
Metal bindingi204MagnesiumUniRule annotation1
Active sitei294Proton acceptorUniRule annotation1
Binding sitei295SubstrateUniRule annotation1
Binding sitei327SubstrateUniRule annotation1
Sitei334Transition state stabilizerUniRule annotation1
Binding sitei379SubstrateUniRule annotation1

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

Keywords - Ligandi

Magnesium, Metal-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Ribulose bisphosphate carboxylase large chainUniRule annotation (EC:4.1.1.39UniRule annotation)
Short name:
RuBisCO large subunitUniRule annotation
Gene namesi
Name:rbcLUniRule annotation
Encoded oniPlastid; Chloroplast
OrganismiBrexia madagascariensis
Taxonomic identifieri39394 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsfabidsCelastralesCelastraceaeBrexia

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Chloroplast, Plastid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
PropeptideiPRO_00000311451 – 2UniRule annotation2
ChainiPRO_00000311463 – ›469Ribulose bisphosphate carboxylase large chainAdd BLAST›467

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei3N-acetylprolineUniRule annotation1
Modified residuei14N6,N6,N6-trimethyllysineUniRule annotation1
Modified residuei201N6-carboxylysineUniRule annotation1
Disulfide bondi247Interchain; in linked formUniRule annotation

Post-translational modificationi

The disulfide bond which can form in the large chain dimeric partners within the hexadecamer appears to be associated with oxidative stress and protein turnover.UniRule annotation

Keywords - PTMi

Acetylation, Disulfide bond, Methylation

Proteomic databases

PRIDEiQ31738.

Interactioni

Subunit structurei

Heterohexadecamer of 8 large chains and 8 small chains; disulfide-linked. The disulfide link is formed within the large subunit homodimers.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliQ31738.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the RuBisCO large chain family. Type I subfamily.UniRule annotation

Family and domain databases

CDDicd08212. RuBisCO_large_I. 1 hit.
Gene3Di3.20.20.110. 1 hit.
3.30.70.150. 1 hit.
HAMAPiMF_01338. RuBisCO_L_type1. 1 hit.
InterProiIPR033966. RuBisCO.
IPR020878. RuBisCo_large_chain_AS.
IPR000685. RuBisCO_lsu_C.
IPR017443. RuBisCO_lsu_fd_N.
IPR020888. RuBisCO_lsuI.
[Graphical view]
PfamiPF00016. RuBisCO_large. 1 hit.
PF02788. RuBisCO_large_N. 1 hit.
[Graphical view]
SUPFAMiSSF51649. SSF51649. 1 hit.
SSF54966. SSF54966. 1 hit.
PROSITEiPS00157. RUBISCO_LARGE. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Fragment.

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

Q31738-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSPQTETKAS VGFKAGVKDY KLNYYTPDYE TKDTDILAAF RVTPQPGVPP
60 70 80 90 100
EEAGAAVAAE SSTGTWTTVW TDGLTSLDRY KGRCYHIEPV AGEENQYIPY
110 120 130 140 150
VAYPLDLFEE GSVTNMFTSI VGNVFGFKAL RALRLEDLRI PPAYSKTFQG
160 170 180 190 200
PPHGIQVERD KLNKYGRPLL GCTIKPKLGL SAKNYGRAVY ECLRGGLDFT
210 220 230 240 250
KDDENVNSQP FMRWRDRFLF CAEALYKAQA ETGEIKGHYL NATAGTCEEM
260 270 280 290 300
MKRAVFAREL GVPIVMHDYL TGGFTANTSL AHYCRDNGLL LHIHRAMHAV
310 320 330 340 350
IDRQKNHGMH FRVLAKALRM SGGDHVHAGT VVGKLEGERD ITLGFVDLLR
360 370 380 390 400
DDFIEKDRSR GIYFTQDWVS LPGVLPVASG GIHVWHMPAL TEIFGDDSVL
410 420 430 440 450
QFGGGTLGHP WGNAPGAVAN RVALEACVQA RNEGRDLARE GNEIIREASK
460
WSPELAAACE VWKEIKFEF
Length:469
Mass (Da):52,056
Last modified:November 1, 1996 - v1
Checksum:iA56F292BA21F1F36
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Non-terminal residuei4691

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
L11176 Genomic DNA. Translation: AAA84093.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
L11176 Genomic DNA. Translation: AAA84093.1.

3D structure databases

ProteinModelPortaliQ31738.
ModBaseiSearch...
MobiDBiSearch...

Proteomic databases

PRIDEiQ31738.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Family and domain databases

CDDicd08212. RuBisCO_large_I. 1 hit.
Gene3Di3.20.20.110. 1 hit.
3.30.70.150. 1 hit.
HAMAPiMF_01338. RuBisCO_L_type1. 1 hit.
InterProiIPR033966. RuBisCO.
IPR020878. RuBisCo_large_chain_AS.
IPR000685. RuBisCO_lsu_C.
IPR017443. RuBisCO_lsu_fd_N.
IPR020888. RuBisCO_lsuI.
[Graphical view]
PfamiPF00016. RuBisCO_large. 1 hit.
PF02788. RuBisCO_large_N. 1 hit.
[Graphical view]
SUPFAMiSSF51649. SSF51649. 1 hit.
SSF54966. SSF54966. 1 hit.
PROSITEiPS00157. RUBISCO_LARGE. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiRBL_BREMA
AccessioniPrimary (citable) accession number: Q31738
Entry historyi
Integrated into UniProtKB/Swiss-Prot: December 15, 1998
Last sequence update: November 1, 1996
Last modified: November 30, 2016
This is version 81 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Miscellaneous

The basic functional RuBisCO is composed of a large chain homodimer in a "head-to-tail" conformation. In form I RuBisCO this homodimer is arranged in a barrel-like tetramer with the small subunits forming a tetrameric "cap" on each end of the "barrel".UniRule annotation

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.