instruction:
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.
question:
 On the basis of experiments with mutant virus and transfection with isolated genes , the herpes simplex virus immediate - early gene product ICP4 is known to positively regulate the transcription of viral early and late genes and negatively regulate expression from its own promoter .
answer:
early gene


question:
 Differential transcription of plastome - encoded genes in the mesophyll and bundle - sheath chloroplasts of the monocotyledonous NADP - malic enzyme - type C4 plants maize and Sorghum .
answer:
malic enzyme


question:
 Action against Vibrio cholerae O1 Tox + of chemical products used in the lemon production .
answer:

Tox +