Plasma Kallikrein (KLKB1) Mouse Recombinant Protein

This gene encodes a member of the kallikrein subfamily of serine proteases that are involved in diverse physiological functions such as skin desquamation, tooth enamel formation, seminal liquefaction, synaptic neural plasticity and brain function. The encoded preproprotein undergoes proteolytic processing to generate a disulfide-linked heterodimeric enzyme comprised of heavy and light chains. A complete deletion of the encoded protein prevents occlusive thrombus formation in mice with a minimal role in provoked bleeding. [provided by RefSeq, May 2016]

KLKB1: The enzyme cleaves Lys-Arg and Arg-Ser bonds. It activates, in a reciprocal reaction, factor XII after its binding to a negatively charged surface. It also releases bradykinin from HMW kininogen and may also play a role in the renin-angiotensin system by converting prorenin into renin. Defects in KLKB1 are the cause of prekallikrein deficiency (PKK deficiency); also known as Fletcher factor deficiency. This disorder is a blood coagulation defect. Belongs to the peptidase S1 family. Plasma kallikrein subfamily.

Protein type: Protease; EC 3.4.21.34; Secreted; Secreted, signal peptide

Cellular Component: extracellular space; extracellular region

Molecular Function: peptidase activity; hydrolase activity; serine-type peptidase activity; serine-type endopeptidase activity; catalytic activity

Biological Process: fibrinolysis; hemostasis; positive regulation of fibrinolysis; blood coagulation; inflammatory response; proteolysis; plasminogen activation