1rlc | pdb_00001rlc

CRYSTAL STRUCTURE OF THE UNACTIVATED RIBULOSE 1, 5-BISPHOSPHATE CARBOXYLASE(SLASH)OXYGENASE COMPLEXED WITH A TRANSITION STATE ANALOG, 2-CARBOXY-D-ARABINITOL 1,5-BISPHOSPHATE

spinqualitylabelsall models 1rlc, resolution 2.70Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1rlc is a 2 chain structure with sequence from Nicotiana tabacum. The November 2000 RCSB PDB Molecule of the Month feature on Rubisco by David S. Goodsell is 10.2210/rcsb_pdb/mom_2000_11. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.7Å Ligands: CAP Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function RBS_TOBAC 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. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed The crystal structure of unactivated ribulose 1,5-bisphosphate carboxylase/oxygenase from Nicotiana tabacum complexed with a transition state analog, 2-carboxy-D-arabinitol 1,5-bisphosphate, was determined to 2.7 A resolution by X-ray crystallography. The transition state analog binds at the active site in an extended conformation. As compared to the binding of the same analog in the activated enzyme, the analog binds in a reverse orientation. The active site Lys 201 is within hydrogen bonding distance of the carboxyl oxygen of the analog. Loop 6 (residues 330-339) remains open and flexible upon binding of the analog in the unactivated enzyme, in contrast to the closed and ordered loop 6 in the activated enzyme complex. The transition state analog is exposed to solvent due to the open conformation of loop 6. Crystal structure of the unactivated ribulose 1,5-bisphosphate carboxylase/oxygenase complexed with a transition state analog, 2-carboxy-D-arabinitol 1,5-bisphosphate.,Zhang KY, Cascio D, Eisenberg D Protein Sci. 1994 Jan;3(1):64-9. PMID:8142899 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also RuBisCO 3D structures

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