1i0v

Ribonuclease T1 in complex with 2'GMP (form I crystal)

spinqualitylabelsall models 1i0v, resolution 1.23Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1i0v is a 1 chain structure with sequence from Aspergillus oryzae. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.234Å Ligands: 2GP, CA Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function RNT1_ASPOR 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 In the crystalline state, ribonuclease T1 binds calcium ions at different lattice-dependent positions. In solution, its conformational stability is also remarkably increased in the presence of divalent metal ions. Combining urea unfolding studies and X-ray crystallography, we compared the presence of several metal ions at specific sites in the protein to their contribution to the overall stabilizing effect in solution. We constructed thermodynamic cycles involving particular metal ions and specific carboxylate functions. The resulting coupling energies indicate that some (but not all) metal ions found at lattice contacts in crystal structures may indeed significantly contribute to stability enhancement in the presence of metal ions in solution. The contribution of metal ions to the conformational stability of ribonuclease T1: crystal versus solution.,Deswarte J, De Vos S, Langhorst U, Steyaert J, Loris R Eur J Biochem. 2001 Jul;268(14):3993-4000. PMID:11453993 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Ribonuclease 3D structures

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