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Protein

Ribulose bisphosphate carboxylase large chain

Gene

cbbL

Organism
Prochlorococcus marinus (strain MIT 9312)
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 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 sitei115Substrate; in homodimeric partnerUniRule annotation1
Binding sitei165SubstrateUniRule annotation1
Active sitei167Proton acceptorUniRule annotation1
Binding sitei169SubstrateUniRule annotation1
Metal bindingi193Magnesium; via carbamate groupUniRule annotation1
Metal bindingi195MagnesiumUniRule annotation1
Metal bindingi196MagnesiumUniRule annotation1
Active sitei286Proton acceptorUniRule annotation1
Binding sitei287SubstrateUniRule annotation1
Binding sitei319SubstrateUniRule annotation1
Sitei326Transition state stabilizerUniRule annotation1
Binding sitei371SubstrateUniRule 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:cbbLUniRule annotation
Synonyms:rbcLUniRule annotation
Ordered Locus Names:PMT9312_0550
OrganismiProchlorococcus marinus (strain MIT 9312)
Taxonomic identifieri74546 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaSynechococcalesProchloraceaeProchlorococcus
Proteomesi
  • UP000002715 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00002514531 – 471Ribulose bisphosphate carboxylase large chainAdd BLAST471

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei193N6-carboxylysineUniRule annotation1

Interactioni

Subunit structurei

Heterohexadecamer of 8 large chains and 8 small chains.UniRule annotation

Protein-protein interaction databases

STRINGi74546.PMT9312_0550.

Structurei

3D structure databases

ProteinModelPortaliQ31BY4.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

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

Phylogenomic databases

eggNOGiENOG4105DT1. Bacteria.
COG1850. LUCA.
HOGENOMiHOG000230831.
KOiK01601.
OMAiFTQDWAS.
OrthoDBiPOG091H14UZ.

Family and domain databases

Gene3Di3.20.20.110. 1 hit.
3.30.70.150. 1 hit.
HAMAPiMF_01338. RuBisCO_L_type1. 1 hit.
InterProiIPR033966. RuBisCO.
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.

Sequencei

Sequence statusi: Complete.

Q31BY4-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSKKYDAGVK EYRDTYWTPE YVPLDTDLLA CFKCTGQEGV PREEVAAAVA
60 70 80 90 100
AESSTGTWST VWSELLTDLE FYKGRCYRIE DVPGDPEAFY AFIAYPLDLF
110 120 130 140 150
EEGSITNVLT SLVGNVFGFK ALRHLRLEDI RFPIAFIKTC GGPPNGIVVE
160 170 180 190 200
RDRLNKYGRP LLGCTIKPKL GLSGKNYGRV VYECLRGGLD LTKDDENINS
210 220 230 240 250
QPFQRWRERF EFVAEAVKLA QQETGEVKGH YLNCTANTPE ELYERAEFAK
260 270 280 290 300
ELDMPIIMHD YITGGFTANT GLANWCRKNG MLLHIHRAMH AVIDRHPKHG
310 320 330 340 350
IHFRVLAKCL RLSGGDQLHT GTVVGKLEGD RQTTLGYIDN LRESFVPEDR
360 370 380 390 400
SRGNFFDQDW GSMPGVFAVA SGGIHVWHMP ALLAIFGDDS CLQFGGGTHG
410 420 430 440 450
HPWGSAAGAA ANRVALEACV KARNAGREIE KESRDILMEA AKHSPELAIA
460 470
LETWKEIKFE FDTVDKLDVQ G
Length:471
Mass (Da):52,574
Last modified:December 6, 2005 - v1
Checksum:iF02490497AD6D2AD
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000111 Genomic DNA. Translation: ABB49611.1.
RefSeqiWP_002805854.1. NC_007577.1.

Genome annotation databases

EnsemblBacteriaiABB49611; ABB49611; PMT9312_0550.
KEGGipmi:PMT9312_0550.
PATRICi23004778. VBIProMar70153_0570.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000111 Genomic DNA. Translation: ABB49611.1.
RefSeqiWP_002805854.1. NC_007577.1.

3D structure databases

ProteinModelPortaliQ31BY4.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi74546.PMT9312_0550.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABB49611; ABB49611; PMT9312_0550.
KEGGipmi:PMT9312_0550.
PATRICi23004778. VBIProMar70153_0570.

Phylogenomic databases

eggNOGiENOG4105DT1. Bacteria.
COG1850. LUCA.
HOGENOMiHOG000230831.
KOiK01601.
OMAiFTQDWAS.
OrthoDBiPOG091H14UZ.

Family and domain databases

Gene3Di3.20.20.110. 1 hit.
3.30.70.150. 1 hit.
HAMAPiMF_01338. RuBisCO_L_type1. 1 hit.
InterProiIPR033966. RuBisCO.
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.
ProtoNetiSearch...

Entry informationi

Entry nameiRBL_PROM9
AccessioniPrimary (citable) accession number: Q31BY4
Entry historyi
Integrated into UniProtKB/Swiss-Prot: October 3, 2006
Last sequence update: December 6, 2005
Last modified: November 30, 2016
This is version 68 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic 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

Keywords - Technical termi

Complete proteome

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.