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:  Lastly , several restriction length polymorphisms were identified and mapped within a 1 kb region located immediately upstream from the JH cluster .

SOLUTION: JH cluster

PROBLEM:  Plasma hemopexin homeostasis during the acute phase response .

SOLUTION: Plasma hemopexin

PROBLEM:  Primer extension analysis and subcloning of the virJ - phoA fusion indicate that the acetosyringone - inducible promoter lies directly upstream of the virJ structural gene .

SOLUTION:
virJ structural gene