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.

[EX Q]:  Plasma hemopexin homeostasis during the acute phase response .
[EX A]: Plasma hemopexin

[EX Q]:  Interestingly , these " activation - defective " mutants segregated into two classes : 1 ) those that were unable to form dimers but that could still form higher order oligomers and transform cells , and 2 ) those that were defective for PDGF - R binding and were transformation - incompetent .
[EX A]: PDGF - R

[EX Q]:  Due to significant homology to the C - terminus of the Mutator transposase this alternative gene product was named Trap ( transposon - associated protein ) .
[EX A]:
Mutator transposase