This domain is found towards the N-terminal of Neuron-derived neurotrophic factor (NDNF) which contains the first fibronectin type III domain and one of the predicted N-linked glycosylation sites [1,2]. NDNF is a glycosylated and disulfide-bonded secreted protein expressed in brain and spinal cord that promotes migration and neurite growth. It also promotes endothelial cell survival, vessel formation and plays an important role in the process of revascularization.

1: Spatio-temporal expression of a novel neuron-derived neurotrophic factor (NDNF) in mouse brains during development. Kuang XL, Zhao XM, Xu HF, Shi YY, Deng JB, Sun GT; BMC Neurosci. 2010;11:137. PMID:20969804

2: Neuron-derived neurotrophic factor functions as a novel modulator that enhances endothelial cell function and revascularization processes. Ohashi K, Enomoto T, Joki Y, Shibata R, Ogura Y, Kataoka Y, Shimizu Y, Kambara T, Uemura Y, Yuasa D, Matsuo K, Hayakawa S, Hiramatsu-Ito M, Murohara T, Ouchi N; J Biol Chem. 2014;289:14132-14144. PMID:24706764