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#27600 Gd-IgA1 (Galactose-deficient IgA1) Assay Kit - IBL

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Intended Use:
Research reagents
Measuring Method:
Sample Types:
Measuring Samples:
Serum, EDTA-plasma
Measurement Range:
1.56 ~ 100 ng/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.

Product Overview

Product Code 27600
Product Name Gd-IgA1 (Galactose-deficient IgA1) Assay Kit - IBL 
Maker Name Immuno-Biological Laboratories Co., Ltd.
Intended Use Research reagents
Measuring Method ELISA
Conjugate HRP
Species Human
Measuring Samples Serum, EDTA-plasma
Measurement Range 1.56 ~ 100 ng/mL
Primary Reaction 60 minutes at room temperature
Secondary Reaction 30 minutes at room temperature
Sensitivity 0.488 ng/mL
Storage Condition 2~8°C
Poisonous and Deleterious Substances Not Applicable
Cartagena Not Applicable
Measuring Service Available
Package Size 1 96 Well

Product Description

Galactose-deficient IgA1 (Gd-IgA1) attracts a lot of attentions as a critical effector molecule in the pathogenesis and progression of IgA nephropathy (IgAN) in recent studies. It has been suggested that several O-link glycans modified regions exist in the heavy chain hinge region of human IgA1 molecule andGd-IgA1 circulates in blood stream of the patients with the pathological condition of IgAN. The measuring system using snail (helix aspersa; HAA) lectin that is extracted from snail has been used in past numerous studies and it was revealed that serum levels of Gd-IgA1 in patients with IgAN is significantly elevated compared with the level of healthy subjects or patients with renal diseases other than IgAN. Thus, the importance and purpose of measuring serum Gd-IgA1 level have been gradually recognized from such studies. 

However, since the measuring system used HAA lectin is not suitable for measuring multiple and massive samples in large scale studies due to its instability of glycan-recognizing activity, development of alternative measuring system that can quantitatively measure human Gd-IgA1 in serum with stable and reliable data has been considered as an essential and urgent matter. This IBL ELISA kit using the monoclonal antibody that specifically recognizes galactose-deficient hinge sequence of human Gd-IgA1 is a lectin non-dependent measuring system that can quantitatively measure Gd-IgA1 in human serum,which is also suitable for large scale studies because of its stability.


  • Question
    Q.Does Neuramidase treatment require for the sample?
  • Answer
    A.No it doesn't. There is no much different for the result between with and without Neuramidase.
  • Question
    Q.I found the recommended dilution ratio is between 200 and 800 fold. That is quite a wide range. What is the most optimized dilution ratio?
  • Answer
    A.Some samples have a very high value of Gd-IgA1 and such samples would be range over that why the recommended dilution ratio is wide.
    We recommend to start from 200 fold dilution and find the best dilution ratio for your samples. The optimized dilution ratio should be determined by each user.

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