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

 Restriction mapping showed that the two recombinant plasmids shared an EcoRI fragment of 8 . 9 kb .
EcoRI fragment

 It is concluded that the new class of competitive NMDA receptor antagonists , exemplified by CGP 37849 , is the most promising candidate for clinical trials in anxiety disorders .

NMDA receptor