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Protein

Ribulose bisphosphate carboxylase large chain

Gene

rbcL

Organism
Sorghum bicolor (Sorghum) (Sorghum vulgare)
Status
Reviewed-Annotation score: -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

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

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

Keywordsi

Molecular functionLyase, Monooxygenase, Oxidoreductase
Biological processCalvin cycle, Carbon dioxide fixation, Photorespiration, Photosynthesis
LigandMagnesium, 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
OrganismiSorghum bicolor (Sorghum) (Sorghum vulgare)
Taxonomic identifieri4558 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaLiliopsidaPoalesPoaceaePACMAD cladePanicoideaeAndropogonodaeAndropogoneaeSorghinaeSorghum
Proteomesi
  • UP000000768 Componenti: Chloroplast

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cell wall Cytoskeleton Vacuole Chloroplast Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertion Graphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Chloroplast, Plastid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
PropeptideiPRO_00002753691 – 2UniRule annotation2
ChainiPRO_00002753703 – 476Ribulose bisphosphate carboxylase large chainAdd BLAST474

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

PRIDEiA1E9T2

Expressioni

Gene expression databases

ExpressionAtlasiA1E9T2 baseline

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

Protein-protein interaction databases

STRINGi4558.Sb03g020182.1

Structurei

3D structure databases

ProteinModelPortaliA1E9T2
SMRiA1E9T2
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

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

Phylogenomic databases

eggNOGiENOG410IIVP Eukaryota
COG1850 LUCA
InParanoidiA1E9T2
KOiK01601

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
InterProiView protein in InterPro
IPR033966 RuBisCO
IPR020878 RuBisCo_large_chain_AS
IPR000685 RuBisCO_lsu_C
IPR036376 RuBisCO_lsu_C_sf
IPR017443 RuBisCO_lsu_fd_N
IPR036422 RuBisCO_lsu_N_sf
IPR020888 RuBisCO_lsuI
PfamiView protein in Pfam
PF00016 RuBisCO_large, 1 hit
PF02788 RuBisCO_large_N, 1 hit
SFLDiSFLDS00014 RuBisCO, 1 hit
SUPFAMiSSF51649 SSF51649, 1 hit
SSF54966 SSF54966, 1 hit
PROSITEiView protein in PROSITE
PS00157 RUBISCO_LARGE, 1 hit

Sequencei

Sequence statusi: Complete.

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

A1E9T2-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSPQTETKAS VGFKAGVKDY KLTYYTPEYE TKDTDILAAF RVTPQLGVPP
60 70 80 90 100
EEAGAAVAAE SSTGTWTTVW TDGLTSLDRY KGRCYHIEPV PGDPDQYICY
110 120 130 140 150
VAYPLDLFEE GSVTNMFTSI VGNVFGFKAL RALRLEDLRI PPAYVKTFQG
160 170 180 190 200
PPHGIQVERD KLNKYGRPLL GCTIKPKLGL SAKNYGRACY ECLRGGLDFT
210 220 230 240 250
KDDENVNSQP FMRWRDRFVF CAEAIYKAQA ETGEIKGHYL NATAGTCEEM
260 270 280 290 300
IKRAVFAKEL GVPIVMHDYL TGGFTANTTL SHYCRDNGLL LHIHRAMHAV
310 320 330 340 350
IDRQKNHGMH FRVLAKALRM SGGDHIHSGT VVGKLEGERE ITLGFVDLLR
360 370 380 390 400
DDFIEKDRSR GIFFTQDWVS MPGVIPVASG GIHVWHMPAL TEIFGDDSVL
410 420 430 440 450
QFGGGTLGHP WGNAPGAAAN RVALEACVQA RNEGRDLARE GNEIIKAACK
460 470
WSAELAAACE IWKEIKFDTF KAMDTL
Length:476
Mass (Da):52,729
Last modified:January 23, 2007 - v1
Checksum:i3C805C1BA1050367
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
EF115542 Genomic DNA Translation: ABK79504.1
RefSeqiYP_899415.1, NC_008602.1

Genome annotation databases

GeneIDi4549167
KEGGisbi:4549167

Similar proteinsi

Entry informationi

Entry nameiRBL_SORBI
AccessioniPrimary (citable) accession number: A1E9T2
Entry historyiIntegrated into UniProtKB/Swiss-Prot: February 6, 2007
Last sequence update: January 23, 2007
Last modified: May 23, 2018
This is version 63 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

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