GPIbα from amino acid 200-294.

This is a representation of part of the amino-terminal region of GPIbα containing the high concentration of acidic amino acids (indicated by the asterisk) surrounding the 3 sulfated tyrosine residues at positions 276, 278, and 279. Also shown is the 7 amino acid region from Tyr276 to Glu282 possibly involved in botrocetin-mediated VWF binding as demonstrated by Ward et al.8 This figure is an adaptation from Hess et al.34