This BK Competitive ELISA is an in-vitro enzyme-linked immunosorbent assay for the measurement of samples in human serum, plasma and other biological fluids.
Applications
ELISA
Reactivity
Human
Sensitivity
0.74 pg/mL
Detection Limit
1.56-100 pg/mL
Note
FOR SCIENTIFIC EDUCATIONAL RESEARCH USE ONLY (RUO). MUST NOT BE USED IN DIAGNOSTIC OR OTHER MEDICAL APPLICATIONS.
Product Properties
Storage Instruction
If unopened the kit may be stored at 2-8°C for up to 1 month. If the kit will not be used within 1 month, store the components separately, according to the component table in the manual.
This kit recognizes Human BK in samples. No significant cross-reactivity or interference between Human BK and analogues was observed.
Sample Type
serum, plasma and other biological fluids
Additional Info
Tissue Specificity
Secreted in plasma. T-kinin is detected in malignant ovarian, colon and breast carcinomas, but not in benign tumors.
Post Translational Modifications
Bradykinin: Bradykinin is inactivated by ACE, which removes the dipeptide Arg-Phe from its C-terminus. Bradykinin is released from kininogen by plasma kallikrein. Hydroxylation of Pro-383 occurs prior to the release of bradykinin. Phosphorylated by FAM20C in the extracellular medium. N- and O-glycosylated. O-glycosylated with core 1 or possibly core 8 glycans. (Microbial infection) Bradykinin is generated upon proteolytic cleavage by S.pyogenes SpeB to produce hypotension during septic shock.
Function
Kininogens are inhibitors of thiol proteases. HMW-kininogen plays an important role in blood coagulation by helping to position optimally prekallikrein and factor XI next to factor XII.HMW-kininogen inhibits the thrombin- and plasmin-induced aggregation of thrombocytes. LMW-kininogen inhibits the aggregation of thrombocytes. LMW-kininogen is in contrast to HMW-kininogen not involved in blood clotting. Bradykinin: The active peptide bradykinin is a potent vasodilatator that is released from HMW-kininogen shows a variety of physiological effects: (A) influence in smooth muscle contraction, (B) induction of hypotension, (C) natriuresis and diuresis, (D) decrease in blood glucose level, (E) it is a mediator of inflammation and causes (E1) increase in vascular permeability, (E2) stimulation of nociceptors (4E3) release of other mediators of inflammation (e.g. prostaglandins), (F) it has a cardioprotective effect (directly via bradykinin action, indirectly via endothelium-derived relaxing factor action).
Protein Name
Kininogen-1Alpha-2-Thiol Proteinase InhibitorFitzgerald FactorHigh Molecular Weight KininogenHmwkWilliams-Fitzgerald-Flaujeac Factor Cleaved Into - Kininogen-1 Heavy Chain - T-KininIle-Ser-Bradykinin - BradykininKallidin I - Lysyl-BradykininKallidin Ii - Kininogen-1 Light Chain - Low Molecular Weight Growth-Promoting Factor
