acid
amino
atoms
blood
bradykinin
bradykininogenase
disease
enzyme
fletcher
health
human
inflammation
kallidin
kallikrein
kallikreine
kinin
kininogen
kininogenin
klkb1
model
molecular
molecule
padreatin
pdb4zj4
peptide
plasma
plasmin
polymer
polypeptide
prekallikrein
pressure
protease
protein
science
scientific
serine
serum
structure