The neurensin family includes the neuronal membrane proteins neurensin-1 and neurensin-2 [1]. Neurensin-1 plays a role in neurite extension [2].

1: Molecular characterization of a transport vesicle protein Neurensin-2, a homologue of Neurensin-1, expressed in neural cells. Nakanishi K, Ida M, Suzuki H, Kitano C, Yamamoto A, Mori N, Araki M, Taketani S; Brain Res. 2006;1081:1-8. PMID:16527258

2: Developmentally regulated expression of Neuro-p24 and its possible function in neurite extension. Araki M, Nagata K, Satoh Y, Kadota Y, Hisha H, Adachi Y, Taketani S; Neurosci Res. 2002;44:379-389. PMID:12445626