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:  Transcripts appear to be initiated from an upstream promoter , P1 , located in front of the tRNA ( met1 ) gene and from three internal promoters : P2 is located immediately in front of the tRNA ( met2 ) gene ; PL10 is near the beginning of the L1 - L10 intergenic space , and PL12 is at the end of the L10 gene sequence .

SOLUTION: L10 gene sequence

PROBLEM:  Treatments were two adrenocorticotrophin ( ACTH ) preparations given intramuscularly at 2 . 2 U / kg , one of the ACTH preparations given intramuscularly at 1 U / kg and a synthetic polypeptide with ACTH - like activity ( tetracosactrin , cosyntropin ) given intravenously at 5 micrograms / kg .

SOLUTION: ACTH - like

PROBLEM:  As exogenously expressed PKR can form heterodimers with endogenous PKR , the results obtained on the functional characterization of mutant forms of PKR have been taken with caution .

SOLUTION:
endogenous PKR