This region is found at the N-terminal end of human Disabled homolog 2 (DAB2) and similar sequences predominantly found in vertebrates. DAB2 is an adaptor protein involved in endocytosis, cell surface receptor turnover, and cell signalling. The membrane binding properties of this protein depend on its sulfatide-binding motifs (SBM, represented by this entry), which display a helical conformation [3]. This region is N-terminal to the PID domain (Pfam:PF00640).

1: Crystal structures of the Dab homology domains of mouse disabled 1 and 2. Yun M, Keshvara L, Park CG, Zhang YM, Dickerson JB, Zheng J, Rock CO, Curran T, Park HW; J Biol Chem. 2003;278:36572-36581. PMID:12826668

2: Origins of peptide selectivity and phosphoinositide binding revealed by structures of disabled-1 PTB domain complexes. Stolt PC, Jeon H, Song HK, Herz J, Eck MJ, Blacklow SC; Structure. 2003;11:569-579. PMID:12737822

3: Structure, sulfatide binding properties, and inhibition of platelet aggregation by a disabled-2 protein-derived peptide. Xiao S, Charonko JJ, Fu X, Salmanzadeh A, Davalos RV, Vlachos PP, Finkielstein CV, Capelluto DG; J Biol Chem. 2012;287:37691-37702. PMID:22977233