1hz1
From Proteopedia
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| - | [[Image:1hz1.gif|left|200px]] | + | [[Image:1hz1.gif|left|200px]] |
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| - | '''RIBONUCLEASE T1 V16A MUTANT IN COMPLEX WITH MG2+''' | + | {{Structure |
| + | |PDB= 1hz1 |SIZE=350|CAPTION= <scene name='initialview01'>1hz1</scene>, resolution 1.80Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene> and <scene name='pdbligand=2GP:GUANOSINE-2'-MONOPHOSPHATE'>2GP</scene> | ||
| + | |ACTIVITY= [http://en.wikipedia.org/wiki/Ribonuclease_T(1) Ribonuclease T(1)], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.27.3 3.1.27.3] | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''RIBONUCLEASE T1 V16A MUTANT IN COMPLEX WITH MG2+''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1HZ1 is a [ | + | 1HZ1 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Aspergillus_niger Aspergillus niger]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HZ1 OCA]. |
==Reference== | ==Reference== | ||
| - | 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:[http:// | + | 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:[http://www.ncbi.nlm.nih.gov/pubmed/11453993 11453993] |
[[Category: Aspergillus niger]] | [[Category: Aspergillus niger]] | ||
[[Category: Ribonuclease T(1)]] | [[Category: Ribonuclease T(1)]] | ||
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[[Category: stability]] | [[Category: stability]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 11:43:21 2008'' |
Revision as of 09:43, 20 March 2008
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| , resolution 1.80Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | and | ||||||
| Activity: | Ribonuclease T(1), with EC number 3.1.27.3 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
RIBONUCLEASE T1 V16A MUTANT IN COMPLEX WITH MG2+
Overview
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.
About this Structure
1HZ1 is a Single protein structure of sequence from Aspergillus niger. Full crystallographic information is available from OCA.
Reference
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
Page seeded by OCA on Thu Mar 20 11:43:21 2008
