1h8k
From Proteopedia
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| - | [[Image:1h8k.gif|left|200px]] | + | [[Image:1h8k.gif|left|200px]] |
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| - | '''A-SPECTRIN SH3 DOMAIN A11V, V23L, M25V, V53I, V58L MUTANT''' | + | {{Structure |
| + | |PDB= 1h8k |SIZE=350|CAPTION= <scene name='initialview01'>1h8k</scene>, resolution 2.7Å | ||
| + | |SITE= | ||
| + | |LIGAND= | ||
| + | |ACTIVITY= | ||
| + | |GENE= | ||
| + | }} | ||
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| + | '''A-SPECTRIN SH3 DOMAIN A11V, V23L, M25V, V53I, V58L MUTANT''' | ||
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==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1H8K is a [ | + | 1H8K is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1H8K OCA]. |
==Reference== | ==Reference== | ||
| - | Conformational strain in the hydrophobic core and its implications for protein folding and design., Ventura S, Vega MC, Lacroix E, Angrand I, Spagnolo L, Serrano L, Nat Struct Biol. 2002 Jun;9(6):485-93. PMID:[http:// | + | Conformational strain in the hydrophobic core and its implications for protein folding and design., Ventura S, Vega MC, Lacroix E, Angrand I, Spagnolo L, Serrano L, Nat Struct Biol. 2002 Jun;9(6):485-93. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12006985 12006985] |
[[Category: Gallus gallus]] | [[Category: Gallus gallus]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: sh3-domain]] | [[Category: sh3-domain]] | ||
| - | ''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 11:33:45 2008'' |
Revision as of 09:33, 20 March 2008
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| Coordinates: | save as pdb, mmCIF, xml | ||||||
A-SPECTRIN SH3 DOMAIN A11V, V23L, M25V, V53I, V58L MUTANT
Overview
We have designed de novo 13 divergent spectrin SH3 core sequences to determine their folding properties. Kinetic analysis of the variants with stability similar to that of the wild type protein shows accelerated unfolding and refolding rates compatible with a preferential stabilization of the transition state. This is most likely caused by conformational strain in the native state, as deletion of a methyl group (Ile-->Val) leads to deceleration in unfolding and increased stability (up to 2 kcal x mol(-1)). Several of these Ile-->Val mutants have negative phi(-U) values, indicating that some noncanonical phi(-U) values might result from conformational strain. Thus, producing a stable protein does not necessarily mean that the design process has been entirely successful. Strained interactions could have been introduced, and a reduction in the buried volume could result in a large increase in stability and a reduction in unfolding rates.
About this Structure
1H8K is a Single protein structure of sequence from Gallus gallus. Full crystallographic information is available from OCA.
Reference
Conformational strain in the hydrophobic core and its implications for protein folding and design., Ventura S, Vega MC, Lacroix E, Angrand I, Spagnolo L, Serrano L, Nat Struct Biol. 2002 Jun;9(6):485-93. PMID:12006985
Page seeded by OCA on Thu Mar 20 11:33:45 2008
