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#27737 Human APL1β25 Assay Kit - IBL (Product On Request)

Intended Use:
Research reagents
Measuring Method:
Sample Types:
Measuring Samples:
CSF, Cell culture supernatant
Measurement Range:
9.38 - 600 pg/mL
Package Size1:
96 Well

※ The product indicated as "Research reagents" in the column Intended Use cannot be used
  for diagnostic nor any medical purpose.
※ The datasheet listed on this page is sample only. Please refer to the datasheet
  enclosed in the product purchased before use.

Product Overview

Product Code 27737
Product Name Human APL1β25 Assay Kit - IBL (Product On Request)
Intended Use Research reagents
Measuring Method ELISA
Conjugate HRP
Species Human
Measuring Samples CSF, Cell culture supernatant
Measurement Range 9.38 - 600 pg/mL
Primary Reaction Overnight at 2 - 8 ℃
Secondary Reaction 30 minutes at 2 - 8 ℃
Sensitivity 2.49 pg/mL
Specificity Substance Cross-Reactivity
Human APL1β25 100.0%
Human APL1β27 <0.6
Human APL1β28 <0.1
Storage Condition 2 - 8 ℃
Poisonous and Deleterious Substances Not Applicable
Cartagena Not Applicable
Measuring Service Not Available
Package Size 1 96 Well

Product Description

APLP1 and APLP2 (βAPP like protein 1, 2) are known to have similar primary structures to APP (Amyloid precursor protein). In recent years, it has been reported that three length types of APLP1-derived Aβ (Amyloidβ)-like peptides, APL1β25, APL1β27 and APL1β28 that are generated by BACE (β-secretase) and γ-secretase are present in CSF (cerebrospinal fluid). The report also indicates that these APL1β peptides are secreted via similar processes to Aβ but they were not deposited in AD (Alzheimer disease) brain. Additionally, in some experiments using cultured cells, relative production of APL1β28 was regulated as well as that of Aβ42, and the usability of measuring of APL1β28 in CSF is suggested as a candidate surrogate marker for the Aβ42 in brain. Thus, APL1β peptides are expected to be novel biomarkers of AD research. This product can measure human APL1β25.


  • 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.

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