2005
DOI: 10.1002/bip.20390
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Natural polypeptide scaffolds: β‐sheets, β‐turns, and β‐hairpins

Abstract: This paper provides an introduction to fundamental conformational states of polypeptides in the beta-region of phi,psi space, in which the backbone is extended near to its maximal length, and to more complex architectures in which extended segments are linked by turns and loops. There are several variants on these conformations, and they comprise versatile scaffolds for presentation of side chains and backbone amides for molecular recognition and designed catalysts. In addition, the geometry of these fundament… Show more

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Cited by 41 publications
(37 citation statements)
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“…Compound 1 has reduced conformational freedom relative to 4 and 6. The and dihedral angle equivalents in 4 are restricted by allylic strain (A 1,2 and A 1,3 ) relative to 6 (39). Compound 5, designed to replace the i ϩ 1 and i ϩ 2 residues of a type II ␤-turn (25), was expected to introduce a Pin WW twist preference mismatch.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…Compound 1 has reduced conformational freedom relative to 4 and 6. The and dihedral angle equivalents in 4 are restricted by allylic strain (A 1,2 and A 1,3 ) relative to 6 (39). Compound 5, designed to replace the i ϩ 1 and i ϩ 2 residues of a type II ␤-turn (25), was expected to introduce a Pin WW twist preference mismatch.…”
Section: Resultsmentioning
confidence: 99%
“…beta-sheet nucleator ͉ kinetic assessment of turn mimics ͉ Pin WW domain ͉ protein folding L oops and turns enable the formation of compact protein structures (1,2). Numerous reports analyzing structural databases, studying peptide model systems, and perturbing known protein structures have revealed many examples where ␤-sheet folding is nucleated or envisioned to be nucleated by reverse turn formation (3)(4)(5)(6)(7)(8)(9)(10).…”
mentioning
confidence: 99%
“…[1] More recently, peptides have become very attractive as scaffolds in the development of smart biomaterials. [2,3] Engineering new intramolecular disulfide bonds in peptide structures is a simple strategy to stabilize them. [4] In fact, some natural antimicrobial peptides consist of b-hairpin structures stabilized by several disulfide bonds.…”
Section: Introductionmentioning
confidence: 99%
“…This agrees well with the parallel β-sheet of equivalent length in protein structure as 13.4 and 12.9 Å on the two strands (pid:202J, chain A). We made type I and type II β-turns with the model, and compared them, respectively, with the type I β-hairpin turn found in ubiquitin (pid:1AAR, turn-seq:TLTG) (31), and the type II turn found as a subpart of the β-barrel in factor H binding protein (pid:3KVD, turn-seq:GSDD) (32) (Fig. 6C).…”
Section: Resultsmentioning
confidence: 99%