Rat SERPINB2/Plasminogen Activator Inhibitor 2 ELISA Kit
The Rat SerpinB2 (Plasminogen Activator Inhibitor-2) ELISA Kit is specifically designed for the accurate detection of SerpinB2 levels in rat serum, plasma, and cell culture supernatants. This kit offers exceptional sensitivity and specificity, ensuring precise and consistent results for various research applications. SerpinB2, also known as Plasminogen Activator Inhibitor-2, is a key regulator of the fibrinolytic system and is involved in the inhibition of tissue-type plasminogen activator.
Dysregulation of SerpinB2 has been linked to various diseases, including inflammation, cancer, and thrombosis, making it a valuable biomarker for studying these conditions and developing potential therapeutic strategies. With its reliable performance and easy-to-use format, the Rat SerpinB2 ELISA Kit is a valuable tool for researchers and scientists looking to investigate the role of SerpinB2 in different biological processes and diseases.
Product Name:
Rat SERPINB2/Plasminogen Activator Inhibitor 2 ELISA Kit
Product Code:
RTFI01026
Size:
96 Assays
Target:
Rat PAI-2
Alias:
PAI-2, B2, PAI2, PLANH2, Urokinase Inhibitor, HsT1201, Monocyte Arg-serpin, PAI, PAI2Urokinase inhibitor, Placental plasminogen activator inhibitor, PLANH2PAI-2, plasminogen activator inhibitor 2, plasminogen activator inhibitor, type II, arginine-serpin, serine, or cysteine proteinase inhibitor, clade B, ovalbumin, member 2, Serpin B2, serpin peptidase inhibitor, clade B, ovalbumin, member 2
Reactivity:
Rat
Detection Method:
Sandwich ELISA, Double Antibody
Sensitivity:
0.938ng/ml
Range:
1.563-100ng/ml
Storage:
4°C for 6 months
Note:
For Research Use Only
Recovery:
Matrices listed below were spiked with certain level of Rat PAI-2 and the recovery rates were calculated by comparing the measured value to the expected amount of Rat PAI-2 in samples.
Matrix
Recovery range(%)
Average(%)
serum(n=5)
93-105
99
EDTA plasma(n=5)
86-98
93
UFH plasma(n=5)
86-101
94
Linearity:
The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Rat PAI-2 and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.
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Set standard, test sample and control (zero) wells on the pre-coated plate respectively, and then, record their positions. It is recommended to measure each standard and sample in duplicate. Wash plate 2 times before adding standard, sample and control (zero) wells!
2.
Aliquot 0.1ml standard solutions into the standard wells.
3.
Add 0.1 ml of Sample / Standard dilution buffer into the control (zero) well.
4.
Add 0.1 ml of properly diluted sample ( Human serum, plasma, tissue homogenates and other biological fluids.) into test sample wells.
5.
Seal the plate with a cover and incubate at 37°C for 90 min.
6.
Remove the cover and discard the plate content, clap the plate on the absorbent filter papers or other absorbent material. Do NOT let the wells completely dry at any time. Wash plate X2.
7.
Add 0.1 ml of Biotin- detection antibody working solution into the above wells (standard, test sample & zero wells). Add the solution at the bottom of each well without touching the side wall.
8.
Seal the plate with a cover and incubate at 37°C for 60 min.
9.
Remove the cover, and wash plate 3 times with Wash buffer. Let wash buffer rest in wells for 1 min between each wash.
10.
Add 0.1 ml of SABC working solution into each well, cover the plate and incubate at 37°C for 30 min.
11.
Remove the cover and wash plate 5 times with Wash buffer, and each time let the wash buffer stay in the wells for 1-2 min.
12.
Add 90 µL of TMB substrate into each well, cover the plate and incubate at 37°C in dark within 10-20 min. (Note: This incubation time is for reference use only, the optimal time should be determined by end user.) And the shades of blue can be seen in the first 3-4 wells (with most concentrated standard solutions), the other wells show no obvious color.
13.
Add 50 µL of Stop solution into each well and mix thoroughly. The color changes into yellow immediately.
14.
Read the O.D. absorbance at 450 nm in a microplate reader immediately after adding the stop solution.
When carrying out an ELISA assay it is important to prepare your samples in order to achieve the best possible results. Below we have a list of procedures for the preparation of samples for different sample types.
Sample Type
Protocol
Serum:
If using serum separator tubes, allow samples to clot for 30 minutes at room temperature. Centrifuge for 10 minutes at 1,000x g. Collect the serum fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles.
If serum separator tubes are not being used, allow samples to clotovernight at 2-8°C. Centrifuge for 10 minutes at 1,000x g. Removeserum and assay promptly or aliquot and store the samples at-80°C. Avoid multiple freeze-thaw cycles.
Plasma:
Collect plasma using EDTA or heparin as an anti-coagulant. Centrifuge samples at 4°C for 15 mins at 1000 × g within 30 mins of collection. Collect the plasma fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles.Note: Over haemolysed samples are not suitable for use with this kit.
Urine & Cerebrospinal Fluid:
Collect the urine (mid-stream) in a sterile container, centrifuge for 20 mins at 2000-3000 rpm. Remove supernatant and assay immediately. If any precipitation is detected, repeat the centrifugation step. A similar protocol can be used for cerebrospinal fluid.
Cell Culture Supernatant:
Collect the cell culture media by pipette, followed by centrifugation at 4°C for 20 mins at 1500 rpm. Collect the clear supernatant and assay immediately.
Cell Lysates:
Solubilize cells in lysis buffer and allow to sit on ice for 30 minutes. Centrifuge tubes at 14,000 x g for 5 minutes to remove insoluble material. Aliquot the supernatant into a new tube and discard the remaining whole cell extract. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20°C.
Tissue Homogenates:
The preparation of tissue homogenates will vary depending upon tissue type. Rinse tissue with 1X PBS to remove excess blood & homogenizein 20ml of 1X PBS (including protease inhibitors) and store overnight at ≤ -20°C. Two freeze-thaw cycles are required to break the cell membranes. To further disrupt the cell membranes you can sonicate the samples. Centrifuge homogenates for 5 mins at 5000xg. Remove the supernatant and assay immediately or aliquot and store at -20°C or-80°C.
Tissue Lysates:
Rinse tissue with PBS, cut into 1-2 mm pieces, and homogenize with a tissue homogenizer in PBS. Add an equal volume of RIPA buffer containing protease inhibitors and lyse tissues at room temperature for 30 minutes with gentle agitation. Centrifuge to remove debris. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20 °C.
Breast Milk:
Collect milk samples and centrifuge at 10,000 x g for 60 min at 4°C. Aliquot the supernatant and assay. For long term use, store samples at -80°C. Minimize freeze/thaw cycles.
