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.

 Northern analyses further confirm that the expression of endogenous alpha - ENaC gene in salivary Pa - 4 cells is suppressed by an ectopic HMGI - C overexpression .
HMGI - C

 Detailed analysis of the predicted amino acid sequence revealed sequence elements which are conserved in many DNA and RNA polymerases .
RNA polymerases

 Thus , the mutants are deficient in production of the O - antigen polymerase and were termed rfc mutants .

rfc mutants

