The present invention relates to modified arginine deiminases exhibiting an increased activity at a higher pH, compared to a non-modified arginine deiminase, as well as uses of these enzymes for the treatment of cancer and unwanted tumor-induced neovascularization in a cancer. The present invention further relates to a method for modifying the pH optimum of the activity of an arginine deiminase, wherein said modifying provides an increased activity of said modified arginine deiminase at a higher pH, compared to a non-modified arginine deiminase.
本发明涉及经修饰的精
氨酸脱
亚胺酶,与未经修饰的精
氨酸脱
亚胺酶相比,经修饰的精
氨酸脱
亚胺酶在较高的pH值下表现出更高的活性,本发明还涉及这些酶在治疗癌症和不必要的肿瘤诱导的癌症新生血管中的用途。本发明进一步涉及一种改变精
氨酸脱
亚胺酶活性的最佳pH值的方法,其中所述改变使所述经修饰的精
氨酸脱
亚胺酶在较高pH值下的活性比未经修饰的精
氨酸脱
亚胺酶更高。