TASK DEFINITION: In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.
PROBLEM:  When a longer - 714 to + 78 fragment of the PBGD promoter is used , the - 70 GATA mutant still displays erythroid - specific activity and is cis - activated by the 5 ' HS - 2 enhancer , while the - 100 CCACC mutant is completely inactive in the absence or in the presence of the 5 ' HS - 2 enhancer .

SOLUTION: PBGD promoter

PROBLEM:  Nitroglycerin ( glyceryl trinitrate ) as a monoamine oxidase inhibitor .

SOLUTION: monoamine oxidase

PROBLEM:  In F9 , which is a prototype of embryonal carcinoma cells expressing hst , the expression of hst gene is positively regulated by a downstream octamer motif that functions as an enhancer .

SOLUTION:
hst gene