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]:  Regulation of cellular retinoic acid binding protein ( CRABP II ) during human monocyte differentiation in vitro .
[EX A]: CRABP II

[EX Q]:  These studies suggest that NO - related signaling pathways may mediate SDF1 alpha - induced chemotaxis , but not mitogen - activated protein kinase activation .
[EX A]: SDF1 alpha

[EX Q]:  In B - lymphoblastoid cell lines derived from two independent class II - deficient bare lymphocyte syndrome patients , we observed a drastic decrease in transcription rates of the class II genes .
[EX A]:
class II genes