Human CYPD (Cyclophilin D) ELISA Kit (HUES02879)



ELISA Kit Technical ManualMSDS

Human CYPD (Cyclophilin D) 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 CYPD . 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 CYPD 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 CYPD, 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 CYPD. The concentration of Human CYPD in samples can be calculated by comparing the OD of the samples to the standard curve.

Assay typeSandwich
Assay time4.5h
Detection MethodColormetric
Detection Range62.50-4000 pg/mL
Sensitivity37.50 pg/mL
Sample Volume Required Per Well100uL
Sample TypeSerum, plasma and other biological fluids


This kit recognizes Human CYPD in samples. No significant cross-reactivity or interference between Human CYPD 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 CYPD were tested 20 times on one plate, respectively.

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

Intra-assay Precision Inter-assay Precision
Mean (pg/mL)198.69469.781867.98187.83435.711685.54
Standard deviation10.0525.70102.5511.4424.5771.47
C V (%)5.065.475.496.095.644.24


The recovery of Human CYPD 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)91-10296
EDTA plasma (n=5)85-9792
Cell culture media (n=5)89-10094


Samples were spiked with high concentrations of Human CYPD 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 (%)88-10286-9892-106
Average (%)949397
1:4Range (%)88-10285-9786-99
Average (%)949191
1:8Range (%)94-10783-9684-94
Average (%)999089
1:16Range (%)90-10385-9685-97
Average (%)959091

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 CYPD (Cyclophilin D) ELISA Kit (HUES02879) 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 CYPD (Cyclophilin D) ELISA Kit (HUES02879) Protein Information

UniProt Protein Function:PPID: PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. Belongs to the cyclophilin-type PPIase family. PPIase D subfamily.
UniProt Protein Details:

Protein type:Nucleolus; Isomerase; EC

Chromosomal Location of Human Ortholog: 4q31.3

Cellular Component: cytoplasm; nucleolus; nucleus

Molecular Function:cyclosporin A binding; estrogen receptor binding; heat shock protein binding; Hsp70 protein binding; Hsp90 protein binding; peptidyl-prolyl cis-trans isomerase activity; protein binding; transcription factor binding

Biological Process: negative regulation of transcription from RNA polymerase II promoter; positive regulation of apoptosis; positive regulation of protein secretion; positive regulation of viral genome replication; protein complex assembly; protein folding; release of virus from host

NCBI Summary:The protein encoded by this gene is a member of the peptidyl-prolyl cis-trans isomerase (PPIase) family. PPIases catalyze the cis-trans isomerization of proline imidic peptide bonds in oligopeptides and accelerate the folding of proteins. This protein has been shown to possess PPIase activity and, similar to other family members, can bind to the immunosuppressant cyclosporin A. [provided by RefSeq, Jul 2008]
UniProt Code:Q08752
NCBI GenInfo Identifier:729274
NCBI Gene ID:5481
NCBI Accession:Q08752.3
UniProt Secondary Accession:Q08752,B2R9V2,
UniProt Related Accession:Q08752
Molecular Weight:40,764 Da
NCBI Full Name:Peptidyl-prolyl cis-trans isomerase D
NCBI Synonym Full Names:peptidylprolyl isomerase D
NCBI Official Symbol:PPID  
NCBI Official Synonym Symbols:CYPD; CYP-40  
NCBI Protein Information:peptidyl-prolyl cis-trans isomerase D
UniProt Protein Name:Peptidyl-prolyl cis-trans isomerase D
UniProt Synonym Protein Names:40 kDa peptidyl-prolyl cis-trans isomerase; Cyclophilin-40; CYP-40; Cyclophilin-related protein; Rotamase D
Protein Family:Peptidyl-prolyl cis-trans isomerase
UniProt Gene Name:PPID  
UniProt Entry Name:PPID_HUMAN
View AllClose

Additional Information

Product type:
View AllClose