SELECT T1.id ,  T1.name FROM enzyme AS T1 JOIN medicine_enzyme_interaction AS T2 ON T1.id  =  T2.enzyme_id WHERE T2.interaction_type  =  'activitor' GROUP BY T1.id ORDER BY count(*) DESC LIMIT 1
What is the id and name of the enzyme with most number of medicines that can interact as 'activator'?
CREATE TABLE "medicine" (
"id" int,
"name" text,
"Trade_Name" text,
"FDA_approved" text,
primary key ("id")
);
CREATE TABLE "enzyme" (
"id" int,
"name" text,
"Location" text,
"Product" text,
"Chromosome" text,
"OMIM" int,
"Porphyria" text,
primary key ("id")
);
CREATE TABLE "medicine_enzyme_interaction" (
"enzyme_id" int,
"medicine_id" int,
"interaction_type" text,
primary key ("enzyme_id", "medicine_id"),
foreign key ("enzyme_id") references `enzyme`("id"),
foreign key ("medicine_id") references `medicine`("id")
);
INSERT INTO  "medicine" VALUES (1,"Amisulpride","Solian","No");
INSERT INTO  "enzyme" VALUES (1,"ALA synthase","Mitochondrion","δ-Aminolevulinic acid","3p21.1","125290","none");
INSERT INTO "medicine_enzyme_interaction" VALUES(1,1, "inhibitor");