β-CGRP, human ,a 37-amino acid peptide,is the beta form of Calcitonin-gene-related peptide (β-CGRP), involved extensively in regulation of the cardiovascular and nervous systems. β-CGRP contains a disulphide bridge at the N-terminus, a C-terminal phenylalanine amide important for immune recognition, and an a-helix between residues 8 and 18.

Etrolizumab (rhuMAb Beta7), a gut-selective anti-β7 integrin monoclonal antibody, targets the β7 subunit of α4β7 and αEβ7 integrins specifically, demonstrating affinity with K i values of 18 nM for Human α4β7 and 1800 pM for Human αEβ7-293.

[Val671]-Amyloid b/A4 Protein Precursor770 (667-676)