what are the location of the enzymes?
select distinct location from enzyme
yes
select chromosome from enzyme where name = "PBG deaminase"
Find the product name of the ALA synthase?
select product from enzyme where name = "ALA synthase"
Find the enzyme name of medicine id 3?
select distinct t1.name from enzyme as t1 join medicine_enzyme_interaction as t2 on t2.enzyme_id = t1.id where t2.medicine_id = 3