1LE0 | pdb_00001le0

NMR structure of Tryptophan Zipper 1: a stable, monomeric beta-hairpin with a type II' turn

• PDB DOI: https://doi.org/10.2210/pdb1LE0/pdb
• Entry: 1LE0 supersedes: 1HRW

• Classification: DE NOVO PROTEIN
• Mutation(s): No 


• Deposited: 2002-04-09 Released: 2002-04-24 
• Deposition Author(s): Cochran, A.G., Skelton, N.J., Starovasnik, M.A.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 90 
• Conformers Submitted: 20 
• Selection Criteria: structures with the least restraint violations 

Literature

Tryptophan zippers: stable, monomeric beta -hairpins.

Cochran, A.G., Skelton, N.J., Starovasnik, M.A.

(2001) Proc Natl Acad Sci U S A 98: 5578-5583

• PubMed: 11331745 
• DOI: https://doi.org/10.1073/pnas.091100898
• Primary Citation Related Structures: 
  1LE0, 1LE1, 1LE3


• PubMed Abstract: 
  

  A structural motif, the tryptophan zipper (trpzip), greatly stabilizes the beta-hairpin conformation in short peptides. Peptides (12 or 16 aa in length) with four different turn sequences are monomeric and fold cooperatively in water, as has been observed previously for some hairpin peptides. However, the folding free energies of the trpzips exceed substantially those of all previously reported beta-hairpins and even those of some larger designed proteins. NMR structures of three of the trpzip peptides reveal exceptionally well-defined beta-hairpin conformations stabilized by cross-strand pairs of indole rings. The trpzips are the smallest peptides to adopt an unique tertiary fold without requiring metal binding, unusual amino acids, or disulfide crosslinks.

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Organizational Affiliation: 
• Department of Protein Engineering, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA. [e-mail]

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 1.61 kDa 
• Atom Count: 116 
• Modeled Residue Count: 13 
• Deposited Residue Count: 13 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Tryptophan Zipper 1	A	13	N/A	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 90 
• Conformers Submitted: 20 
• Selection Criteria: structures with the least restraint violations 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2002-04-24 
Deposition Author(s): Cochran, A.G., Skelton, N.J., Starovasnik, M.A.
• This entry supersedes: 1HRW

Revision History  

• Version 1.0: 2002-04-24
  Type: Initial release
  
• Version 1.1: 2008-04-28
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2022-02-23
  Changes: Data collection, Database references, Derived calculations
• Version 1.4: 2024-10-09
  Changes: Data collection, Structure summary