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Karle, IL and Flippen-Anderson, JL and Uma, K and Balaram, P (1993) Peptide mimics for structural features in proteins. Crystal structures of three heptapeptide helices with a C-terminal 6-->1 hydrogen bond. In: International Journal of Peptide & Protein Research, 42 (5). pp. 401-410.
Karle, IL and Flippen-Anderson, JL and Uma, K and Balaram, P (1993) Accommodation of a D-Phe Residue into a Right-Handed 310-Helix: Structure of Boc-D-Phe- ( Aib)4-Gly-L-Leu-(Aib)2-OMe, an Analogue of the Amino Terminal Segment of Antiamoebins and Emerimicins. In: Biopolymers, 33 (3). pp. 401-407.
Agarwalla, S and Mellor, IR and Sansom, MSP and Karle, IL and Flippen-Anderson, JL and Uma, K and Krishna, K and Sukumar, M and Balaram, P (1992) Zervamicins, a structurally characterised peptide model for membrane ion channels. In: Biochemical and Biophysical Research Communications, 186 (1). pp. 8-15.
Karle, Isabella L and Flippen-Anderson, JL and Uma, K and Balaram, Padmanabhan (1990) Helix construction using a-aminoisobutyryl residues in a modular approach to synthetic protein design. Conformational properties of an apolar decapeptide in two different crystal forms and in solution. In: Current Science (Bangalore), 59 (17). 875-885 .
Karle, IL and Flippen-Anderson, JL and Sukumar, M and Balaram, P (1990) Parallel and antiparallel aggregation of alpha-helices. Crystal structures of two apolar decapeptides X-Trp-Ile-Ala-Aib-Ile-Val-Aib-Leu-Aib-Pro-OMe (X = Boc, Ac). In: International Journal of Peptide & Protein Research, 35 (6). pp. 518-526.
Karle, IL and Flippen-Anderson, JL and Uma, K and Balaram, P (1989) Solvated Helical Backbones: X-Ray Diffraction Study of Boc-Ala-Leu-Aib-Ala-Leu-Aib-Ome.$H_2O$. In: Biopolymers, 28 (3). pp. 773-781.
Karle, IL and Flippen-Anderson, JL and Uma, K and Balaram, Padmanabhan (1988) Aggregation studies in crystals of apolar helical peptides: Boc-Aib-Val-Ala-Leu-Aib-Val-Ala-Leu-Aib-OMe. In: International Journal of Peptide & Protein Research Int J Pept Protein Res, 32 (6). pp. 536-543.
Karle, Isabella L and Flippen-Anderson, JL and Uma, K and Balaram, Padmanabhan (1988) Aqueous channels within apolar peptide aggregates. Solvated helix of Boc-Aib-Ala-Leu-Aib-Ala-Leu-Aib- -Ala-Leu-Aib-OMe. H2O.CH3OH. In: Proceedings Of The National Academy of Sciences of The United States Of America , 85 (2). pp. 299-303.
Karle, IL and Flippen-Anderson, JL and Sukumar , M and Balaram, Padmanabhan (1987) Conformation of a 16-residue zervamicin IIA analog peptide containing three different structural features: 310-helix, alpha helix and ß-bend ribbon. In: Proceedings of The National Academy of Sciences of The United States of America, 84 (15). pp. 5087-5091.
