Human SRGN(Serglycin)ELISA Kit (HUES03361)



ELISA Kit Technical ManualMSDS

Human SRGN(Serglycin)ELISA Kit

This ELISA kit uses Sandwich-ELISA as the method. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to Human SRGN . Standards or samples are added to the appropriate micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Human SRGN and Avidin-Horseradish Peroxidase (HRP) conjugate are added to each micro plate well successively and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain Human SRGN, biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. The enzyme-substrate reaction is terminated by adding Stop Solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The OD value is proportional to the concentration of Human SRGN. The concentration of Human SRGN in samples can be calculated by comparing the OD of the samples to the standard curve.

Assay typeSandwich
Assay time4.5h
Detection MethodColormetric
Detection Range0.16-10 ng/mL
Sensitivity0.10 ng/mL
Sample Volume Required Per Well100uL
Sample TypeSerum, plasma and other biological fluids


This kit recognizes Human SRGN in samples. No significant cross-reactivity or interference between Human SRGN and analogues was observed.

Typical Data

As the OD values of the standard curve may vary according to the conditions of the actual assay performance (e.g. operator, pipetting technique, washing technique or temperature effects), the operator should establish a standard curve for each test. Typical standard curve and data is provided below for reference only.

O.D Average Corrected


Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level Human SRGN were tested 20 times on one plate, respectively.

Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Human SRGN were tested on 3 different plates, 20 replicates in each plate.

Intra-assay Precision Inter-assay Precision
Mean (ng/mL)0.461.273.610.491.353.56
Standard deviation0.
C V (%)6.524.724.716.125.193.37


The recovery of Human SRGN spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.

Sample Type Range (%) Average Recovery (%)
Serum (n=5)92-10398
EDTA plasma (n=5)89-10596
Cell culture media (n=5)89-10094


Samples were spiked with high concentrations of Human SRGN and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.

Serum (n=5) EDTA plasma (n=5) Cell culture media (n=5)
1:2Range (%)95-11090-10284-99
Average (%)1019691
1:4Range (%)89-10585-10087-99
Average (%)969294
1:8Range (%)91-10482-9483-96
Average (%)978889
1:16Range (%)89-10283-9885-100
Average (%)948992

Kit Components & Storage

An unopened kit can be stored at 4'C for 1 month. If the kit is not used within 1 month, store the items separately according to the following conditions once the kit is received.

Item Specifications Storage
Micro ELISA Plate(Dismountable)8 wells X12 strips-20'C, 6 months
Reference Standard2 vials
Concentrated Biotinylated Detection Ab (100X)1 vial, 120 uL
Concentrated HRP Conjugate (100X)1 vial, 120 uL-20'C(shading light), 6 months
Reference Standard & Sample Diluent1 vial, 20 mL4'C, 6 months
Biotinylated Detection Ab Diluent1 vial, 14 mL
HRP Conjugate Diluent1 vial, 14 mL
Concentrated Wash Buffer (25X)1 vial, 30 mL
Substrate Reagent1 vial, 10 mL4'C(shading light)
Stop Solution1 vial, 10 mL4'C
Plate Sealer5 pieces
Product Description1 copy
Certificate of Analysis1 copy

Human SRGN(Serglycin)ELISA Kit (HUES03361) Assay procedure

    1. Set standard, test sample and control (zero) wells on the pre-coated plate and record theirpositions. It is recommended to measure each standard and sample in duplicate. Note: addall solutions to the bottom of the plate wells while avoiding contact with the well walls. Ensuresolutions do not foam when adding to the wells.
    2. Aliquot 100µl of standard solutions into the standard wells.
    3. Add 100µl of Sample / Standard dilution buffer into the control (zero) well.
    4. Add 100µl of properly diluted sample (serum, plasma, tissue homogenates and otherbiological fluids) into test sample wells.
    5. Cover the plate with the sealer provided in the kit and incubate for 90 min at 37°C.
    6. Aspirate the liquid from each well, do not wash. Immediately add 100µL of BiotinylatedDetection Ab working solution to each well. Cover the plate with a plate seal and gently mix.Incubate for 1 hour at 37°C.
    7. Aspirate or decant the solution from the plate and add 350µL of wash buffer to each welland incubate for 1-2 minutes at room temperature. Aspirate the solution from each well andclap the plate on absorbent filter paper to dry. Repeat this process 3 times. Note: a microplatewasher can be used in this step and other wash steps.
    8. Add 100µL of HRP Conjugate working solution to each well. Cover with a plate seal andincubate for 30 min at 37°C.
    9. Aspirate or decant the solution from each well. Repeat the wash process for five times asconducted in step 7.
    10. Add 90µL of Substrate Reagent to each well. Cover with a new plate seal and incubate forapproximately 15 min at 37°C. Protect the plate from light. Note: the reaction time can beshortened or extended according to the actual color change, but not by more than 30min.
    11. Add 50 µL of Stop Solution to each well. Note: Adding the stop solution should be done inthe same order as the substrate solution.
    12. Determine the optical density (OD value) of each well immediately with a microplate readerset at 450 nm.

Human SRGN(Serglycin)ELISA Kit (HUES03361) Protein Information

UniProt Protein Function:SRGN: Plays a role in formation of mast cell secretory granules and mediates storage of various compounds in secretory vesicles. Required for storage of some proteases in both connective tissue and mucosal mast cells and for storage of granzyme B in T-lymphocytes. Plays a role in localizing neutrophil elastase in azurophil granules of neutrophils. Mediates processing of MMP2. Plays a role in cytotoxic cell granule-mediated apoptosis by forming a complex with granzyme B which is delivered to cells by perforin to induce apoptosis. Regulates the secretion of TNF- alpha and may also regulate protease secretion. Inhibits bone mineralization. Belongs to the serglycin family.
UniProt Protein Details:

Protein type:Secreted; Secreted, signal peptide

Chromosomal Location of Human Ortholog: 10q22.1

Cellular Component: Golgi membrane; Golgi apparatus; extracellular space; mast cell granule; extracellular region

Molecular Function:collagen binding; protein binding

Biological Process: maintenance of granzyme B localization in T cell secretory granule; platelet activation; negative regulation of bone mineralization; platelet degranulation; induction of apoptosis by granzyme; biomineral formation; negative regulation of cytokine secretion; T cell secretory granule organization and biogenesis; maintenance of protease localization in mast cell secretory granule; protein processing; mast cell secretory granule organization and biogenesis; blood coagulation

NCBI Summary:This gene encodes a protein best known as a hematopoietic cell granule proteoglycan. Proteoglycans stored in the secretory granules of many hematopoietic cells also contain a protease-resistant peptide core, which may be important for neutralizing hydrolytic enzymes. This encoded protein was found to be associated with the macromolecular complex of granzymes and perforin, which may serve as a mediator of granule-mediated apoptosis. Two transcript variants, only one of them protein-coding, have been found for this gene. [provided by RefSeq, Jul 2010]
UniProt Code:P10124
NCBI GenInfo Identifier:269849659
NCBI Gene ID:5552
NCBI Accession:P10124.3
UniProt Secondary Accession:P10124,Q5VW06, B2R4L7,
UniProt Related Accession:P10124
Molecular Weight:158
NCBI Full Name:Serglycin
NCBI Synonym Full Names:serglycin
NCBI Official Symbol:SRGN
NCBI Official Synonym Symbols:PPG; PRG; PRG1
NCBI Protein Information:serglycin; p.PG; serglycin proteoglycan; proteoglycan 1, secretory granule; platelet proteoglycan core protein; hematopoetic proteoglycan core peptide; hematopoetic proteoglycan core protein; hematopoietic proteoglycan core protein; secretory granule proteoglycan core peptide; secretory granule proteoglycan core protein; proteoglycan protein core for mast cell secretory granule
UniProt Protein Name:Serglycin
UniProt Synonym Protein Names:Hematopoietic proteoglycan core protein; Platelet proteoglycan core protein; P.PG; Secretory granule proteoglycan core protein
Protein Family:Serglycin
UniProt Gene Name:SRGN
UniProt Entry Name:SRGN_HUMAN
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