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.

 We have isolated a unique murine FLT3 cDNA that codes for a variant isoform of FLT3 , devoid of the fifth Ig - like domain , by comparison with the prototypic form .
murine FLT3 cDNA

 Biochemical experiments and genome sequencing have shown that , despite the prokaryotic cell and genome organization , basal transcriptional elements of members of the domain Archaea ( i . e . , TATA box - like sequences , RNA polymerase , and transcription factors TBP , TFIIB , and TFIIS ) are of the eukaryotic type .
RNA polymerase

 This latter complex reacts with an antibody to serum response factor ( SRF ) and exhibits the same binding characteristics as purified SRF .

serum response factor