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#27732 Human sAPPβ-w (highly sensitive) Assay Kit - IBL

  • #27732 Human sAPPβ-w (highly sensitive) ELISA Kit
  • #27732 Human sAPPβ-w (highly sensitive) ELISA Kit
  • #27732 Human sAPPβ-w (highly sensitive) ELISA Kit
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Intended Use:
Research reagents
Measuring Method:
ELISA
Sample Types:
Human
Measuring Samples:
EDTA-plasma,CSF,Cell culture supernatant
Measurement Range:
0.78 - 50 ng/mL
Package Size1:
96 Well

Product Overview

Product Code 27732
Product Name Human sAPPβ-w (highly sensitive) Assay Kit - IBL
Intended Use Research reagents
Measuring Method ELISA
Conjugate HRP
Species Human
Measuring Samples EDTA-plasma,CSF,Cell culture supernatant
Measurement Range 0.78 - 50 ng/mL
Primary Reaction Overnight at 2 - 8℃
Secondary Reaction 30 minutes at 2 - 8℃
Sensitivity 0.05 ng/mL
Specificity Compound Cross Reactivity
Human sAPPβ-w 100.0%
Human sAPPβ-sw 0.25%
Human sAPPα 1.41%
Storage Condition 2 - 8 ℃
Poisonous and Deleterious Substances Not Applicable
Cartagena Not Applicable
Measuring Service Not Available
Package Size 1 96 Well

Product Description

Alzheimer's disease (AD) was first reported by A. Alzheimer, a German neuropathologist in 1907 and is considered as a major factor of dementia. It is known that Amyloid β (Aβ; which is major constituent of senile plaque) is cleaved from Amyloid Precursor Protein (APP; which exists in three main isoforms, APP695, APP751, and APP770) by β-secretase and subsequent γ-secretase. The production of soluble APPβ (sAPPβ) by β-secretase cleavage corresponds to Aβ production accordingly, so it is desired to measure sAPPβ in parallel with Aβ. In addition, it is reported that APP gene mutation exists in individuals who suffer early-onset familial Alzheimer’s disease. Swedish mutation, one of the APP gene mutations, is a double mutation at positions -1 to -2 from the β-secretase cleavage site (Lys670→Asn and Met671→Leu). And further, it is reported that Swedish mutation elevates Aβ40 and Aβ42 production , and that the mutation is utilized in establishment of transgenic mice. The measuring sAPPβ in Swedish type is useful for research of AD as well as in wild type. On the one hand, it is considered that in the metabolic pathway of APP, APP is first cleaved by α-secretase rather than β-secretase normally to produce soluble APPα (sAPPα) and subsequently P3 is cleaved from the remaining C-terminal fragment by γ-secretase. This kit can measure human soluble sAPPβ wild type (sAPPβ-w) in samples. IBL has many other kinds of Amyloidβ-related products for AD research. They are very specific assay systems for each target and they can be used according to the purpose of study.

The control set is available for sale on request. Learn More

References

Note: Retrieve by PMID number in displayed by abstract: http://www.ncbi.nlm.nih.gov

FAQ

  • Question
    Q.What is the epitope of the HRP conjugated antibody (Human APP (R101A4) Mouse IgG Fab’ A.P.)?
  • Answer
    A.We have not confirmed the epitope.
  • Question
    Q.What type of soluble APP can be measured by this kit?
  • Answer
    A.This kit specifically detects human soluble APPβ wild type (sAPPβ-w).
  • Question
    Q.What is epitope of the antibodies used in this kit?
  • Answer
    A.The HRP conjugated labeled antibody (Anti-Human APP (R101A4) Mouse IgG Fab’ Affinity Purify) used in this kit detects domain at N-Terminal.
    The epitope of the precoated plate antibody (Anti-Human sAPPβ-wild Type Rabbit IgG Affinity Purify at C-Terminal) used in this kit is ISEVKM.
  • Question
    Q.Is composition of EIA buffer of each ELISA kit all same? Can it be mixed to use?
    ELISA common FAQ
  • Answer
    A.No it isn't. As constitute of each EIA buffer is different, it cannot be mixed with other lots or EIA buffers contained in other kind of ELISA kits.
  • Question
    Q.What is the composition of concentrated wash buffer?
    ELISA common FAQ
  • Answer
    A.It contains ordinary Tween and phosphate buffer (0.05% Tween-20 in PB).
  • Question
    Q.What is the feature of the plate?
    ELISA common FAQ
  • Answer
    A.We use plate that is flat bottom and removable strip type plate (8wellx 12 strips).
  • Question
    Q.Can I re-use standard after reconstitution?
    ELISA common FAQ
  • Answer
    A.Not recommended to re-use standard after reconstitution. Please use it at once after the reconstitution.
    Please note that there are some exceptions. One time freeze-thaw the standard is acceptable for use after reconstitution for some ELISAs.
    Please check the details on each product datasheet.
  • Question
    Q.What is different between reagent blank and test sample blank?
    ELISA common FAQ
  • Answer
    A.Reagent blank means a well is only added EIA buffer and the purpose is confirming whether the measuring value is influenced by lack of washing process. Test sample blank means a well is added EIA buffer and HRP antibody and the purpose is to calculate the background.
  • Question
    Q.How many samples can be measured by this kit?
    ELISA common FAQ
  • Answer
    A.The pre-coated plate contained in our ELISA kit is 96 wells plate. We recommend to use 16 wells (2 slits) for standard and 80 wells (10 slits) for 40 samples in duplicate.
  • Question
    Q.What is LOD (Limit of Detection)?
    ELISA common FAQ
  • Answer
    A.It (LOD) is defined as sensitivity that is calculated using the NCCSL method. Please refer to a datasheet of each product.
  • Question
    Q.What is LOQ (Limit of Quantification)?
    ELISA common FAQ
  • Answer
    A.It (LOQ) is the lowest value of measurement (standard) range. Please refer to a datasheet of each product.
  • Question
    Q.Do you have any protocol for preparation of mice and/or rat brain
    tissue extracts?
    (ELISA common FAQ * Specified FAQ for ELISA that is applicable for brain tissue extract.)
  • Answer
    A.CHAPS is recommended for extractin of wild type (W.T.) mice or rat brain tissue.
    Please refer to the following link for the brain tissue extraction process using CHAPS.
    http://www.ibl-japan.co.jp/files/topics/4944_ext_02_0.pdf

    Guanidine solution is recommended for extraction of Transgenic (Tg) mice or rat brain tissue.
    Please refer to the following link and the following two scientific articles for brain tissue extraction process using Guanidine.
    http://www.ibl-japan.co.jp/files/topics/4945_ext_02_0.pdf

    Presenilin-2 mutation causes early amyloid accumulation and memory impairment in a transgenic mouse model of Alzheimer's disease. Toda T et al. J Biomed Biotechnol. 2011;2011:617974.
    https://www.ncbi.nlm.nih.gov/pubmed/?term=21234330

    Methylene blue modulates β-secretase, reverses cerebral amyloidosis, and improves cognition in transgenic mice. Mori T et al. J Biol Chem. 2014 Oct 31;289(44):30303-17.
    https://www.ncbi.nlm.nih.gov/pubmed/?term=25157105

    * The ELISA kit #27712 Aβ42 and #27714 Aβ40 have been upgraded to #27719 Aβ (1-42)(FL) and #27718 Aβ (1-40)(FL).

Note: This product is for research use only. It cannot be used as a diagnostic tool or drug.