Human Kininogen Antibody

Applications

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Preparation and Storage

Background: Kininogen

Kininogen, also known as alpha 2-thiol proteinase inhibitor, is a multi-function protein. There are two alternatively spliced forms, designated as the high molecular weight (HMW) and low MW (LMW) forms (1). The HMW form is synthesized as a 644 amino acid residue precursor with a signal peptide (residues 1‑18). The mature chain (residues 19‑644) is further processed into the heavy (residues 19‑380) and the light (residues 390‑644) chains. The active peptide bradykinin (residues 381‑389) is released, which has a variety of functions including muscle contraction, hypotension and inflammation. The heavy chain consists of three cystatin-like domains, which are responsible for inhibiting cysteine proteases. The light chain consists of a His-rich domain, which is associated with the clotting activity. In comparison to the HMW form, the LMW Kininogen (427 residues) has the same sequence in its heavy chain and bradykinin, but a different sequence in its light chain (residues 402‑427). The LMW form is not involved in blood clotting.

Product Datasheets

Related Research Areas

• Coagulation
• Complement Pathway
• Cysteine Proteases and Regulators
• Neurotransmitters, Neuroactive Molecules and Associated Enzymes
• Plasmin/Plasminogen and Kallikrein/Kinin Systems