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.

[Q]:  In contrast , a similar fusion protein ( hGH - LDLR - DAF17 , abbreviated HLD ) containing a fragment of the serine / threonine - rich domain of the LDL receptor ( LDLR ) in place of the DAF - derived serine / threonine - rich sequences , does not become GPI anchored .
[A]: LDL receptor


[Q]:  A simple procedure for accurate quantitation of factor VIII inhibitors .
[A]: factor VIII


[Q]:  The best - studied neurotrophin , nerve growth factor ( NGF ) , is a major survival factor in sympathetic and sensory neurons and promotes differentiation in a well - studied model system , PC12 cells .
[A]:
nerve growth factor