Enterokinase Activity Assay Kit (Fluorometric) (ab170964)

Overview

  • Product name
    Enterokinase Activity Assay Kit (Fluorometric)
    See all Enterokinase kits
  • Sample type
    Purified protein
  • Assay type
    Quantitative
  • Sensitivity
    >= 1 mU/well
  • Species reactivity
    Reacts with: Human
  • Product overview

    Abcam's Enterokinase Activity Assay Kit (Fluorometric) utilizes a peptide substrate containing the Enterokinase recognition sequence along with a fluorescent label ‘AFC’. Enterokinase catalyzes the cleavage of this substrate and releases the AFC molecule, which can be easily quantified by measuring its fluorescence at Ex/Em = 380/500 nm. This assay kit is simple and rapid and can detect Enterokinase activity as low as 1 mU.

  • Notes

    Enterokinase (Enteropeptidase, EC 3.4.21.9) is a serine protease involved in activation of trypsinogen to trypsin, which in turn results in the activation of various digestive enzymes. It recognizes a highly specific amino acid sequence ‘DDDDK’ and cleaves after the lysine residue. High specific activity of Enterokinase has been utilized in cleaving a variety of native or fusion protein tags containing the above recognition motif.

  • Tested applications
    Suitable for: Functional Studiesmore details

Properties

  • Storage instructions
    Store at -20°C. Please refer to protocols.
  • Components Identifier 100 tests
    AFC Standard Yellow 1 x 100µl
    Enteropeptidase Assay Buffer WM 1 x 20ml
    Enteropeptidase Substrate Red 1 x 0.2ml
    Human Enteropeptidase Green 1 x 17µl
  • Research areas
  • Function
    Responsible for initiating activation of pancreatic proteolytic proenzymes (trypsin, chymotrypsin and carboxypeptidase A). It catalyzes the conversion of trypsinogen to trypsin which in turn activates other proenzymes including chymotrypsinogen, procarboxypeptidases, and proelastases.
  • Tissue specificity
    Intestinal brush border.
  • Involvement in disease
    Defects in TMPRSS15 are a cause of enterokinase deficiency (ENTKD) [MIM:226200]; a life-threatening intestinal malabsorption disorder characterized by diarrhea and failure to thrive.
  • Sequence similarities
    Belongs to the peptidase S1 family.
    Contains 2 CUB domains.
    Contains 2 LDL-receptor class A domains.
    Contains 1 MAM domain.
    Contains 1 peptidase S1 domain.
    Contains 1 SEA domain.
    Contains 1 SRCR domain.
  • Post-translational
    modifications
    The chains are derived from a single precursor that is cleaved by a trypsin-like protease.
  • Cellular localization
    Membrane.
  • Information by UniProt
  • Alternative names
    • Enterokinase
    • Enteropeptidase catalytic light chain
    • ENTK
    • ENTK_HUMAN
    • PRSS7
    • Serine protease 7
    • TMPRSS15
    • Transmembrane protease serine 15
    see all
  • Database links

Applications

Our Abpromise guarantee covers the use of ab170964 in the following tested applications.

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

Application Abreviews Notes
Functional Studies Use at an assay dependent concentration.

Images

Protocols

References

ab170964 has not yet been referenced specifically in any publications.

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Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"

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