3.4.23.36 A128V site-directed mutagenesis 651951 3.4.23.36 D102A site-directed mutagenesis 651951 3.4.23.36 D111A site-directed mutagenesis 651951 3.4.23.36 D129A site-directed mutagenesis 651951 3.4.23.36 D14A site-directed mutagenesis 651951 3.4.23.36 F125A site-directed mutagenesis 651951 3.4.23.36 F50A site-directed mutagenesis 651951 3.4.23.36 G47A site-directed mutagenesis 651951 3.4.23.36 G95A site-directed mutagenesis 651951 3.4.23.36 K18A site-directed mutagenesis 651951