主权项 |
1. An isolated, modified human kynureninase enzyme, said modified enzyme having at least one substitution relative to native human kynureninase (see SEQ ID NO: 8), said at least one substitution is at a position selected from the group consisting of: (a) A99, F306, and A436; (b) A99, G112, F306, L337, I405, S408; (c) G112, F306, L337, and I405; (d) A99, T138, F306, and A436; (e) A99, G112, F306, V339, I405, and S408; (f) A99 and F306; (g) F306, L337, V339, I405, and S408; (h) G112, F306, V339, and I405; (i) G112, F306, V339, S408; (k) F71, A99, G112, T138, F306, L337, V339, I405, S408, and A436; (1) A99, G112, F306, L337, V339, I405, and S408; (m) A436; (n) A99, G112, T138, V339, and I405; (p) A99, G112, F306, I405, S408, and A436; (q) F71, A99, I131, F249, and L322; (r) A99, I131, F249, E259, and F306; (s) F71, A99, and E259; (t) F71, A99, S167, and E259; (u) I131, F249, and S274; (v) L59, G112, F306, V339, I405, and S408; (w) I110 and F306; (x) A99, I131, F249, and E259; (y) F71, E259, and L322; (z) H41, Q175, and A436; (a′) A99, I131, and F249; (b′) I131 and F249; (c′) T138 and A436; (d′) T138; (e′) F71, A99, I131, E259, and V303; (f) A99, G112, F306, V339, I405, and S408; (g′) F71, A99, I131, E259, and A282; (h′) F71, F249, E259, and V303; (i′) I110; and (j′) F306. |