What is the type of glycosylase that has an E. coli of Muty?
CREATE TABLE "glycosylases_in_bacteria_yeast_and_human" (
  "e_coli" text,
  "yeast_s_cerevisiae" text,
  "human" text,
  "type" text,
  "substrates" text
);
SELECT "type" FROM "glycosylases_in_bacteria_yeast_and_human" WHERE "e_coli"='muty';