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:
The other end of this cluster contained the human type I cytokeratin K20 and K12 gene loci .
answer:
K12 gene

question:
Parathyroid hormone responses of cyclic AMP - , serum - and phorbol ester - responsive reporter genes in osteoblast - like UMR - 106 cells .
answer:
Parathyroid hormone

question:
It also showed which amino acid residues would contact an extended TATA box with a B recognition element , and evolutionary conservation of the TBP - TFB - DNA complex orientation between two archaeal organisms with widely different optimal temperature for growth ( 37 and 100 degrees C ) .
answer:
B recognition element