Overview

  • Product nameKininogen (KNG) Human ELISA KitSee all Kininogen kits ...
  • Detection methodColorimetric
  • Precision
    Intra-assay
    Sample n Mean SD CV%
    Overall 4.9%
  • Tests
    1 x 96 well plate
  • Sample type
    Cell culture supernatant, Saliva, Milk, Urine
  • Assay typeSandwich (quantitative)
  • Sensitivity
    = 1.5 ng/ml
  • Range
    1.563 ng/ml - 100 ng/ml
  • Recovery

    95 %

  • Assay time
    4h 00m
  • Assay durationMultiple steps standard assay
  • Species reactivity
    Reacts with: Human
  • Product overview

    Abcam’s Kininogen (KNG) Human in vitro ELISA (Enzyme-Linked Immunosorbent Assay) kit is designed for the quantitative measurement of Kininogen in urine, saliva, milk and cell culture supernatants.

    A Kininogen specific antibody has been precoated onto 96-well plates and blocked. Standards or test samples are added to the wells and subsequently a Kininogen specific biotinylated detection antibody is added and then followed by washing with wash buffer. Streptavidin-Peroxidase Conjugate is added and unbound conjugates are washed away with wash buffer. TMB is then used to visualize Streptavidin-Peroxidase enzymatic reaction. TMB is catalyzed by Streptavidin-Peroxidase to produce a blue color product that changes into yellow after adding acidic stop solution. The density of yellow coloration is directly proportional to the amount of Kininogen captured in plate.

  • Tested applicationsSandwich ELISA more details
  • PlatformMicroplate

Properties

  • Function(1) Kininogens are inhibitors of thiol proteases; (2) HMW-kininogen plays an important role in blood coagulation by helping to position optimally prekallikrein and factor XI next to factor XII; (3) HMW-kininogen inhibits the thrombin- and plasmin-induced aggregation of thrombocytes; (4) the active peptide bradykinin that is released from HMW-kininogen shows a variety of physiological effects: (4A) influence in smooth muscle contraction, (4B) induction of hypotension, (4C) natriuresis and diuresis, (4D) decrease in blood glucose level, (4E) it is a mediator of inflammation and causes (4E1) increase in vascular permeability, (4E2) stimulation of nociceptors (4E3) release of other mediators of inflammation (e.g. prostaglandins), (4F) it has a cardioprotective effect (directly via bradykinin action, indirectly via endothelium-derived relaxing factor action); (5) LMW-kininogen inhibits the aggregation of thrombocytes; (6) LMW-kininogen is in contrast to HMW-kininogen not involved in blood clotting.
  • Tissue specificitySecreted in plasma. T-kinin is detected in malignant ovarian, colon and breast carcinomas, but not in benign tumors.
  • Involvement in diseaseDefects in KNG1 are the cause of high molecular weight kininogen deficiency (HMWK deficiency) [MIM:228960]. HMWK deficiency is an autosomal recessive coagulation defect. Patients with HWMK deficiency do not have a hemorrhagic tendency, but they exhibit abnormal surface-mediated activation of fibrinolysis.
  • Sequence similaritiesContains 3 cystatin domains.
  • Post-translational
    modifications
    Bradykinin is released from kininogen by plasma kallikrein.
    Hydroxylation of Pro-383 occurs prior to the release of bradykinin.
    Phosphorylation sites are present in the extracelllular medium.
    N- and O-glycosylated. O-glycosylated with core 1 or possibly core 8 glycans.
  • Cellular localizationSecreted > extracellular space.
  • Target information above from: UniProt accession P01042 The UniProt Consortium
    The Universal Protein Resource (UniProt) in 2010
    Nucleic Acids Res. 38:D142-D148 (2010) .

    Information by UniProt
  • Alternative names
    • Alpha-2-thiol proteinase inhibitor
    • Fitzgerald factor
    • High molecular weight kininogen
    • HMWK
    • Ile-Ser-Bradykinin
    • Kallidin I
    • Kallidin II
    • KNG1
    • KNG1_HUMAN
    • Low molecular weight growth-promoting factor
    • Williams-Fitzgerald-Flaujeac factor
    see all
  • Database links

Applications

Our Abpromise guarantee covers the use of ab108876 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Notes
Sandwich ELISA Use at an assay dependent concentration.

Kininogen (KNG) Human ELISA Kit images

  • Representative Standard Curve Using ab108876.

Protocols

References for Kininogen (KNG) Human ELISA Kit (ab108876)

ab108876 has not yet been referenced specifically in any publications.

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