Recombinant human MSP1D1 (membrane scaffold protein 1D1) encompassing amino acids 79-267 (end). This construct contains an N-terminal His-tag (6xHis) followed by an optimal TEV protease target sequence that allows cleavage of the His-tag (TEV: tobacco etch virus cysteine protease (BPS Bioscience #50308)). The protein was affinity purified.