Human Cell Biology ELISA Kits 5
Human CYB5A (Cytochrome b5) CLIA Kit (HUES00917)
- SKU:
- HUES00917
- Product Type:
- ELISA Kit
- ELISA Type:
- CLIA Kit
- Size:
- 96 Assays
- Sensitivity:
- 18.75pg/mL
- Range:
- 31.25-2000pg/mL
- ELISA Type:
- Sandwich
- Synonyms:
- CYB5, Cyt-B5
- Reactivity:
- Human
- Sample Type:
- Serum, plasma and other biological fluids
- Research Area:
- Cell Biology
Description
Assay type: | Sandwich |
Format: | 96T |
Assay time: | 4.5h |
Reactivity: | Human |
Detection method: | Chemiluminescence |
Detection range: | 31.25-2000 pg/mL |
Sensitivity: | 18.75 pg/mL |
Sample volume: | 100µL |
Sample type: | Serum, plasma and other biological fluids |
Repeatability: | CV < 15% |
Specificity: | This kit recognizes Human CYB5A in samples. No significant cross-reactivity or interference between Human CYB5A and analogues was observed. |
This kit uses Sandwich-CLIA as the method. The micro CLIA plate provided in this kit has been pre-coated with an antibody specific to Human CYB5A. Standards or samples are added to the appropriate micro CLIA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Human CYB5A 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 CYB5A, biotinylated detection antibody and Avidin-HRP conjugate will appear fluorescence. The Relative light unit (RLU) value is measured spectrophotometrically by the Chemiluminescence immunoassay analyzer. The RLU value is positively associated with the concentration of Human CYB5A. The concentration of Human CYB5A in the samples can be calculated by comparing the RLU of the samples to the standard curve.
UniProt Protein Function: | CYB5A: Cytochrome b5 is a membrane bound hemoprotein which function as an electron carrier for several membrane bound oxygenases. Defects in CYB5A are the cause of methemoglobinemia CYB5A-related (METHB-CYB5A). A form of methemoglobinemia, a hematologic disease characterized by the presence of excessive amounts of methemoglobin in blood cells, resulting in decreased oxygen carrying capacity of the blood, cyanosis and hypoxia. Belongs to the cytochrome b5 family. 2 isoforms of the human protein are produced by alternative splicing. |
UniProt Protein Details: | Protein type:Membrane protein, integral Chromosomal Location of Human Ortholog: 18q23 Cellular Component: endoplasmic reticulum membrane; mitochondrial outer membrane; membrane; integral to membrane Molecular Function:cytochrome-c oxidase activity; enzyme binding; metal ion binding; aldo-keto reductase activity; heme binding Biological Process: vitamin metabolic process; response to cadmium ion; L-ascorbic acid metabolic process; water-soluble vitamin metabolic process Disease: Methemoglobinemia Type Iv |
NCBI Summary: | The protein encoded by this gene is a membrane-bound cytochrome that reduces ferric hemoglobin (methemoglobin) to ferrous hemoglobin, which is required for stearyl-CoA-desaturase activity. Defects in this gene are a cause of type IV hereditary methemoglobinemia. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jun 2010] |
UniProt Code: | P00167 |
NCBI GenInfo Identifier: | 117809 |
NCBI Gene ID: | 1528 |
NCBI Accession: | P00167. 2 |
UniProt Secondary Accession: | P00167,Q6IB14, A8MV91, F8WEU4, |
UniProt Related Accession: | P00167 |
Molecular Weight: | 14,169 Da |
NCBI Full Name: | Cytochrome b5 |
NCBI Synonym Full Names: | cytochrome b5 type A (microsomal) |
NCBI Official Symbol: | CYB5A |
NCBI Official Synonym Symbols: | CYB5; MCB5 |
NCBI Protein Information: | cytochrome b5; type 1 cyt-b5 |
UniProt Protein Name: | Cytochrome b5 |
UniProt Synonym Protein Names: | Microsomal cytochrome b5 type A; MCB5 |
Protein Family: | Cytochrome |
UniProt Gene Name: | CYB5A |
UniProt Entry Name: | CYB5_HUMAN |
As the RLU 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.
Concentration (pg/mL) | RLU | Average | Corrected |
2000 | 53066 58376 | 55721 | 55693 |
1000 | 22684 25264 | 23974 | 23946 |
500 | 11515 10549 | 11032 | 11004 |
250 | 5044 5544 | 5294 | 5266 |
125 | 2683 2533 | 2608 | 2580 |
62.5 | 1357 1265 | 1311 | 1283 |
31.25 | 660 688 | 674 | 646 |
0 | 27 29 | 28 | -- |
Precision
Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level Human CYB5A were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Human CYB5A were tested on 3 different plates, 20 replicates in each plate.
Intra-assay Precision | Inter-assay Precision | |||||
Sample | 1 | 2 | 3 | 1 | 2 | 3 |
n | 20 | 20 | 20 | 20 | 20 | 20 |
Mean (pg/mL) | 99.16 | 179.08 | 668.16 | 104.14 | 177.64 | 654.12 |
Standard deviation | 12.02 | 20.88 | 54.46 | 13.11 | 17.05 | 55.08 |
C V (%) | 12.12 | 11.66 | 8.15 | 12.59 | 9.60 | 8.42 |
Recovery
The recovery of Human CYB5A 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) | 98-110 | 104 |
EDTA plasma (n=5) | 88-102 | 94 |
Cell culture media (n=5) | 93-105 | 98 |
Linearity
Samples were spiked with high concentrations of Human CYB5A 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) | ||
1:2 | Range (%) | 99-111 | 89-102 | 86-97 |
Average (%) | 104 | 96 | 91 | |
1:4 | Range (%) | 95-112 | 94-109 | 89-100 |
Average (%) | 103 | 101 | 95 | |
1:8 | Range (%) | 103-117 | 92-107 | 94-108 |
Average (%) | 108 | 98 | 99 | |
1:16 | Range (%) | 87-101 | 100-114 | 94-111 |
Average (%) | 94 | 106 | 102 |
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 CLIA Plate(Dismountable) | 8 wells ×12 strips | -20°C, 6 months |
Reference Standard | 2 vials | |
Concentrated Biotinylated Detection Ab (100×) | 1 vial, 120 µL | |
Concentrated HRP Conjugate (100×) | 1 vial, 120 µL | -20°C(shading light), 6 months |
Reference Standard & Sample Diluent | 1 vial, 20 mL | 4°C, 6 months |
Biotinylated Detection Ab Diluent | 1 vial, 14 mL | |
HRP Conjugate Diluent | 1 vial, 14 mL | |
Concentrated Wash Buffer (25×) | 1 vial, 30 mL | |
Substrate Reagent A | 1 vial, 5 mL | 4°C (shading light) |
Substrate Reagent B | 1 vial, 5 mL | 4°C (shading light) |
Plate Sealer | 5 pieces | |
Product Description | 1 copy | |
Certificate of Analysis | 1 copy |
- 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.
- Aliquot 100 µL of standard solutions into the standard wells.
- Add 100 µL of Sample / Standard dilution buffer into the control (zero) well.
- Add 100 µL of properly diluted sample (serum, plasma, tissue homogenates and otherbiological fluids. ) into test sample wells.
- Cover the plate with the sealer provided in the kit and incubate for 90 min at 37 °C.
- Aspirate the liquid from each well, do not wash. Immediately add 100 µL 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.
- Aspirate or decant the solution from the plate and add 350 µL 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.
- Add 100 µL of HRP Conjugate working solution to each well. Cover with a plate seal andincubate for 30 min at 37 °C.
- Aspirate or decant the solution from each well. Repeat the wash process for five times asconducted in step 7.
- Add 100 µL of Substrate mixture solution to each well. Cover with a new plate seal andincubate for no more than 5 min at 37 °C. Protect the plate from light.
- Determine the RLU value of each well immediately.