Protein Information

Name Aib 3
Synonyms AIB 3; AIB3; ANIB 3; ANIB3

Compound Information

Name OCH
CAS 2,3,4,4,5,5,6,6-octachloro-2-cyclohexen-1-one

Reference List

PubMed Abstract RScore(About this table)
10873633 Kumar Thakur A, Venugopalan P, Kishore R: Collateral existence of folded and extended conformations of the beta-Ala moiety in a model peptide. Biochem Biophys Res Commun. 2000 Jul 5;273(2):492-8.


The single-crystal X-ray diffraction analysis of a nonchiral beta-Ala-containing model peptide, Boc-beta-Ala-Aib-OCH (3) 1 (beta-Ala, 3-aminopropionic acid; Aib, alpha-aminoisobutyric acid), establishes the coexistence of distinctly different backbone conformations in two crystallographically independent molecules, A and B, in the asymmetric unit.
1(0,0,0,1) Details
10679622 De Simone G, Lombardi A, Galdiero S, Nastri F, Di Costanzo L, Gohda S, Sano A, Yamada T, Pavone V: The crystal structure of a Dcp-containing peptide. Biopolymers. 2000 Feb;53(2):182-8.


The overall peptide structural organization corresponds to an alpha-pleated sheet conformation, similar to that observed in linear peptides made up of alternating D- and L-residues and in Z-Aib-Aib-OCH (3) (Aib: alpha,alpha-dimethylglycine).
1(0,0,0,1) Details
19053595 Ousaka N, Inai Y: Transfer of noncovalent chiral information along an optically inactive helical peptide chain: allosteric control of asymmetry of the C-terminal site by external molecule that binds to the N-terminal site. J Org Chem. 2009 Feb 20;74(4):1429-39.


The domino-type induction of helical sense is proven by using achiral peptides 1-m of bis-chromophoric sequence with different chain lengths: H-(Aib-Delta (Z) Phe)(m)-(Aib-Delta (Z) Bip)(2)-Aib-OCH (3) [m = 2, 4, and 6; Aib = alpha-aminoisobutyric acid; Delta (Z) Phe = (Z)-alpha,beta-didehydrophenylalanine; Delta (Z) Bip = (Z)-beta-(4,4'-biphenyl)-alpha,beta-didehydroalanine].
1(0,0,0,1) Details