User:Pergo38/sandbox

First Edit
Kallidin and bradykinin are bioactive peptides produced by the kinin-kallikrein system. The molecules are identical, except that kallidin has an additional lysine residue at the N-terminal end (and thus the alternative reference lys-bradykinin). Kallidin is formed by the action of tissue kallikrein on low molecular weight kininogen (LMWK), whereas bradykinin is formed by plasma kallikrein acting on high molecular weight kininogen (HMWK).

Second Edit
The quick brown fox.