1s9z

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{{Seed}}
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{{STRUCTURE_1s9z| PDB=1s9z | SCENE= }}
{{STRUCTURE_1s9z| PDB=1s9z | SCENE= }}
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'''SYNTHETIC 17 AMINO ACID LONG PEPTIDE THAT FORMS A NATIVE-LIKE COILED-COIL AT AMBIENT TEMPERATURE AND AGGREGATES INTO AMYLOID-LIKE FIBRILS AT HIGHER TEMPERATURES.'''
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===SYNTHETIC 17 AMINO ACID LONG PEPTIDE THAT FORMS A NATIVE-LIKE COILED-COIL AT AMBIENT TEMPERATURE AND AGGREGATES INTO AMYLOID-LIKE FIBRILS AT HIGHER TEMPERATURES.===
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==Overview==
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Protein deposition as amyloid fibrils underlies many debilitating human disorders. The complexity and size of disease-related polypeptides, however, often hinders a detailed rational approach to study effects that contribute to the process of amyloid formation. We report here a simplified peptide sequence successfully designed de novo to fold into a coiled-coil conformation under ambient conditions but to transform into amyloid fibrils at elevated temperatures. We have determined the crystal structure of the coiled-coil form and propose a detailed molecular model for the peptide in its fibrillar state. The relative stabilities of the two structural forms and the kinetics of their interconversion were found to be highly sensitive to small sequence changes. The results reveal the importance of specific packing interactions on the kinetics of amyloid formation and show the potential of this exceptionally favorable system for probing details of the molecular origins of amyloid disease.
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(as it appears on PubMed at http://www.pubmed.gov), where 15070736 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15070736}}
==About this Structure==
==About this Structure==
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[[Category: Zurdo, J.]]
[[Category: Zurdo, J.]]
[[Category: Coiled coil]]
[[Category: Coiled coil]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 08:28:10 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 20:27:58 2008''

Revision as of 17:28, 27 July 2008

Template:STRUCTURE 1s9z

SYNTHETIC 17 AMINO ACID LONG PEPTIDE THAT FORMS A NATIVE-LIKE COILED-COIL AT AMBIENT TEMPERATURE AND AGGREGATES INTO AMYLOID-LIKE FIBRILS AT HIGHER TEMPERATURES.

Template:ABSTRACT PUBMED 15070736

About this Structure

Full crystallographic information is available from OCA.

Reference

Exploring amyloid formation by a de novo design., Kammerer RA, Kostrewa D, Zurdo J, Detken A, Garcia-Echeverria C, Green JD, Muller SA, Meier BH, Winkler FK, Dobson CM, Steinmetz MO, Proc Natl Acad Sci U S A. 2004 Mar 30;101(13):4435-40. Epub 2004 Feb 26. PMID:15070736

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