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]: RANKL targeted peptides inhibit osteoclastogenesis and attenuate adjuvant induced arthritis by inhibiting NF-B activation and down regulating inflammatory cytokines.
[A]: NF-B

[Q]: Design, Synthesis and Biological Evaluation of Aminoalkylindole Derivatives as Cannabinoid Receptor Ligands with Potential for Treatment of Alcohol Abuse.
[A]: Cannabinoid Receptor

[Q]: Increased Cat3-mediated cationic amino acid transport functionally compensates in Cat1 knockout cell lines.
[A]:
Cat1