TY - RPRT TI - Capping interactions in isolated alpha helices: position-dependent substitution effects and structure of a serine-capped peptide helix. AU - P C Lyu AU - D E Wemmer AU - H X Zhou AU - R J Pinker AU - N R Kallenbach PY - 1993 DO - 10.1021/bi00053a006 UR - https://pubmed.ncbi.nlm.nih.gov/8422351/ ID - 8422351 ER -