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LEI elisa kit :: Mouse Leukocyte Elastase Inhibitor (LEI) ELISA Kit

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Catalog # MBS2023550 (SPECIAL PROMOTION: Get FREE Starbucks gift card ($5 for 48-Wells-Kit or $10 for 96-Wells-Kit. Maximum 5 gift cards/product). Gift card(s) will be included with shipment)
Unit / Price
  24-Strip-Wells  /  $270 +1 FREE 8GB USB
  48-Strip-Wells  /  $505 +1 FREE 8GB USB
  96-Strip-Wells  /  $685 +1 FREE 8GB USB
  5x96-Strip-Wells  /  $2,770 +3 FREE 8GB USB
  10x96-Strip-Wells  /  $5,025 +6 FREE 8GB USB
Typical Testing Data/Standard Curve (for reference only)
Product Name

Leukocyte Elastase Inhibitor (LEI), ELISA Kit

Popular Item
Full Product Name

Leukocyte Elastase Inhibitor (LEI) ELISA Kit

Product Synonym Names
SERPINB1; EI; ELANH2; LEI; M/NEI; MNEI; PI2; Serpin Peptidase Inhibitor Clade B Member 1; Anti-Elastase; Monocyte/Neutrophil Elastase Inhibitor
Product Gene Name
Research Use Only
For Research Use Only. Not for use in diagnostic procedures.
Request for Current Manual Insert
3D Structure
ModBase 3D Structure for P30740
Species Reactivity
This assay has high sensitivity and excellent specificity for detection of Leukocyte Elastase Inhibitor (LEI).
No significant cross-reactivity or interference between Leukocyte Elastase Inhibitor (LEI) and analogues was observed.
Assay Type
Double-antibody Sandwich
Serum, Plasma and Other Biological Fluids
Detection Range
< 6.4pg/mL
Enzyme-linked immunosorbent assay for Antigen Detection.
Intra-assay Precision (Precision within an assay)
3 samples with low, middle and high level Leukocyte Elastase Inhibitor (LEI) were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays)
3 samples with low, middle and high level Leukocyte Elastase Inhibitor (LEI) were tested on 3 different plates, 8 replicates in each plate.
CV(%) =
Preparation and Storage
The stability of kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition.
To minimize extra influence on the performance, operation procedures and lab conditions, especially room temperature, air humidity, incubator temperature should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same operator from the beginning to the end.
ISO Certification
Manufactured in an ISO 9001:2008 and ISO 13485:2003 Certified Laboratory.
Supply Chain Verification
Manufactured in a lab with traceable raw materials. Bulk orders can typically be prepared to the customer’s specifications, please inquire.
Product Note
Our ELISA Kit assays are dynamic research tools and sometimes they may be updated and improved. If the format of this assay is important to you then please request the current manual or contact our technical support team with a presales inquiry before placing an order. We will confirm the current details of the assay. We cannot guarantee the sample manual posted online is the most current manual.
Other Notes
Small volumes of LEI elisa kit vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.
Searchable Terms forLEIpurchase
MBS2023550 is a ready-to-use microwell, strip plate ELISA (enzyme-linked immunosorbent assay) Kit for analyzing the presence of the Leukocyte Elastase Inhibitor (LEI) ELISA Kit target analytes in biological samples. The concentration gradients of the kit standards or positive controls render a theoretical kit detection range in biological research samples containing LEI. The ELISA analytical biochemical technique of the MBS2023550 kit is based on LEI antibody-LEI antigen interactions (immunosorbency) and an HRP colorimetric detection system to detect LEI antigen targets in samples. The ELISA Kit is designed to detect native, not recombinant, LEI. Appropriate sample types may include undiluted body fluids and/or tissue homogenates, secretions. Quality control assays assessing reproducibility identified the intra-assay CV (%) and inter-assay CV(%).
Related Product Information for
LEI elisa kit
The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Leukocyte Elastase Inhibitor (LEI). Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody specific to Leukocyte Elastase Inhibitor (LEI). Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Leukocyte Elastase Inhibitor (LEI), biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of Leukocyte Elastase Inhibitor (LEI) in the samples is then determined by comparing the O.D. of the samples to the standard curve.
Product Categories/Family for LEI elisa kit

Typical Testing Data/Standard Curve (for reference only) of LEI elisa kit
LEI elisa kit Typical Testing Data/Standard Curve (for reference only) image
Sample Manual Insert of MBS2023550. Click to request current manual
NCBI/Uniprot data below describe general gene information for LEI. It may not necessarily be applicable to this product.
NCBI Accession #
NCBI GenBank Nucleotide #
UniProt Primary Accession #
UniProt Secondary Accession #
UniProt Related Accession #
Molecular Weight
26,073 Da
NCBI Official Full Name
leukocyte elastase inhibitor
NCBI Official Synonym Full Names
serpin peptidase inhibitor, clade B (ovalbumin), member 1
NCBI Official Symbol
SERPINB1  [Similar Products]
NCBI Official Synonym Symbols
  [Similar Products]
NCBI Protein Information
leukocyte elastase inhibitor
UniProt Protein Name
Leukocyte elastase inhibitor
UniProt Synonym Protein Names
Monocyte/neutrophil elastase inhibitor; EI; M/NEI; Peptidase inhibitor 2; PI-2; Serpin B1
UniProt Gene Name
SERPINB1  [Similar Products]
UniProt Synonym Gene Names
ELANH2; MNEI; PI2; LEI; EI; M/NEI; PI-2  [Similar Products]
UniProt Entry Name
NCBI Summary for LEI
The protein encoded by this gene is a member of the serpin family of proteinase inhibitors. Members of this family maintain homeostasis by neutralizing overexpressed proteinase activity through their function as suicide substrates. This protein inhibits the neutrophil-derived proteinases neutrophil elastase, cathepsin G, and proteinase-3 and thus protects tissues from damage at inflammatory sites. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2012]
UniProt Comments for LEI
SERPINB1: Regulates the activity of the neutrophil proteases elastase, cathepsin G, proteinase-3, chymase, chymotrypsin, and kallikrein-3. Belongs to the serpin family. Ov-serpin subfamily.

Chromosomal Location of Human Ortholog: 6p25

Cellular Component: extracellular space; membrane; cytoplasm

Molecular Function: serine-type endopeptidase inhibitor activity
All of MyBioSource's Products are for scientific laboratory research purposes and are not for diagnostic, therapeutics, prophylactic or in vivo use. Through your purchase, you expressly represent and warrant to MyBioSource that you will properly test and use any Products purchased from MyBioSource in accordance with industry standards. MyBioSource and its authorized distributors reserve the right to refuse to process any order where we reasonably believe that the intended use will fall outside of our acceptable guidelines.
While every efforts were made to ensure the accuracy of the information provided in this datasheet, MyBioSource will not be liable for any omissions or errors contained herein. MyBioSource reserves the right to make changes to this datasheet at any time without prior notice.

It is the responsibility of the customer to report product performance issues to MyBioSource within 30 days of receipt of the product. Please visit our Terms & Conditions page for more information.
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Pathways associated with LEI elisa kit
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