Structural and functional properties of the membranotropic HIV-1 glycoprotein gp41 loop region are modulated by its intrinsic hydrophobic core.

Abstract excerpt

The gp41 disulfide loop region switches from a soluble state to a membrane-bound state during the human immunodeficiency virus type 1 (HIV-1) envelope-mediated membrane fusion process. The loop possesses a hydrophobic core at the center of the region with an unusual basic residue (Lys-601). Furthermore, two loop core mutations, K601A and L602A, are found to inhibit HIV-1 infectivity while keeping wild type-like...

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