4f0k Summary

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UNACTIVATED RUBISCO with MAGNESIUM AND CARBON DIOXIDE BOUND

The structure was published by Stec, B., in 2012 in a paper entitled "Structural mechanism of RuBisCO activation by carbamylation of the active site lysine." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 2.05 Å and deposited in 2012.

The experimental data on which the structure is based was also deposited.

This PDB entry contains a complex of 2 biomacromolecules, namely Ribulose bisphosphate carboxylase large chain and Ribulose bisphosphate carboxylase small chain.

It also contains one or more heterogenic compounds (e.g., ligands, co-factors, ions, modified amino acids, etc.); see here for a complete list.

The most likely quaternary structure is a 16meric assembly.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):


Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
A Ribulose bisphosphate carboxylase large chain P23755 (1-493) (RBL_GALSU)search Galdieria sulphurariasearch 100% 493 90%
B Ribulose bisphosphate carboxylase small chain P23756 (1-138) (RBS_GALSU)search Galdieria sulphurariasearch 100% 138 100%


This entry contains 2 unique UniProt proteins:

UniProt accession Name Organism PDB
P23755 (1 - 493) Ribulose bisphosphate carboxylase large chain Galdieria sulphuraria
P23756 (1 - 138) Ribulose bisphosphate carboxylase small chain Galdieria sulphuraria

Chain Structural classification (CATH) Sequence family (Pfam)
A (P23755) Alpha-Beta Plaitssearch, Rubiscosearch PF00016: Ribulose bisphosphate carboxylase large chain, catalytic domainsearch, PF02788: Ribulose bisphosphate carboxylase large chain, N-terminal domainsearch
B (P23756) RuBisCO, small subunitsearch PF00101: Ribulose bisphosphate carboxylase, small chainsearch

Chain ID Molecular function (GO) Biological process (GO) Cellular component (GO)
A (P23755) ribulose-bisphosphate carboxylase activitysearch magnesium ion bindingsearch metal ion bindingsearch monooxygenase activitysearch oxidoreductase activitysearch lyase activitysearch carbon fixationsearch oxidation-reduction processsearch photosynthesissearch reductive pentose-phosphate cyclesearch chloroplastsearch plastidsearch
B (P23756) oxidoreductase activitysearch lyase activitysearch ribulose-bisphosphate carboxylase activitysearch monooxygenase activitysearch reductive pentose-phosphate cyclesearch carbon fixationsearch photosynthesissearch oxidation-reduction processsearch plastidsearch chloroplastsearch

Chain InterPro annotation
A Ribulose bisphosphate carboxylase, large subunit, C-terminalsearch Ribulose bisphosphate carboxylase, large subunit, ferrodoxin-like N-terminalsearch Ribulose bisphosphate carboxylase, large subunit, N-terminalsearch Ribulose bisphosphate carboxylase, large chain, active sitesearch Ribulose bisphosphate carboxylase, large subunitsearch
B Ribulose bisphosphate carboxylase small chain, domainsearch