2.12 Materials
Bradykinin fragment BK-(1-7) [RPPGFSP] was purchased from GenOne
Biotechnologies (Rio de Janeiro, Brazil). The heavy-isotope labelled
BK-(1-9)
[H-Arg-Pro-[13C5;15N]Pro-Gly-Phe-Ser-Pro-Phe-Arg-OH;
or simply RPP(*)GFSPFR] was purchased from Bachem (Torrance, CA, USA).
Unless otherwise stated, all reagents were purchased by Sigma (Saint
Louis, MO, USA).