Because Delta Air Lines charges $35 for your first checked bag (each way), you'd owe $140 total. But the Delta SkyMiles® Gold American Express Card will cost you more than that in Year Two and ...

The biochemical properties of CMY-32, a class C enzyme possessing a single-amino acid substitution in the Ω loop (Gly214Glu), were compared to those of the parent enzyme, CMY-2, a widespread class C β ...