Protein structures in SDS micelle-protein complexes.

Journal Article

Sodium dodecyl sulfate (SDS) is used more often than any other detergent as an excellent denaturing or "unfolding" detergent. However, formation of ordered structure (alpha-helix or beta-sheet) in certain peptides is known to be induced by interaction with SDS micelles. The SDS-induced structures formed by these peptides are amphiphilic, having both a hydrophobic and a hydrophilic face. Previous work in this area has revealed that SDS induces helical folding in a wide variety of non-helical proteins. Here, we describe the interaction of several structurally unrelated proteins with SDS micelles and the correlation of these structures to helical amphiphilic regions present in the primary sequence. It is likely that the ability of native nonordered protein structures to form induced amphiphilic ordered structures is rather common.

Full Text

Duke Authors

Cited Authors

  • Parker, W; Song, PS

Published Date

  • May 1992

Published In

Volume / Issue

  • 61 / 5

Start / End Page

  • 1435 - 1439

PubMed ID

  • 1600087

International Standard Serial Number (ISSN)

  • 0006-3495

Digital Object Identifier (DOI)

  • 10.1016/S0006-3495(92)81949-5

Language

  • eng

Conference Location

  • United States