Rat 5-LO / Arachidonate 5-Lipoxygenase ELISA Kit

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SKU:
RTFI00116
Product Type:
ELISA Kit
Size:
96 Assays
Uniprot:
P12527
Sensitivity:
0.094ng/ml
Range:
0.156-10ng/ml
ELISA Type:
Sandwich ELISA, Double Antibody
Synonyms:
5-LO, Alox5, 5-LO, 5LPG, LOG5, LOX5A, 5-lipoxygenase, 5-LOX, arachidonic 5-lipoxygenase alpha-10 isoform, arachidonic 5-lipoxygenase delta-10-13 isoform, arachidonic 5-lipoxygenase delta-13 isoform, arachidonic 5-lipoxygenase delta-p10 isoform, arach
Reactivity:
Rat
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Description

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Product Name:Rat 5-LO (Arachidonate 5-Lipoxygenase) ELISA Kit
Product Code:RTFI00116
Size:96 Assays
Target:Rat 5-LO
Alias:5-LO, Alox5, 5-LO, 5LPG, LOG5, LOX5A, 5-lipoxygenase, 5-LOX, arachidonic 5-lipoxygenase alpha-10 isoform, arachidonic 5-lipoxygenase delta-10-13 isoform, arachidonic 5-lipoxygenase delta-13 isoform, arachidonic 5-lipoxygenase delta-p10 isoform, arachidonic acid 5-lipoxygenase, leukotriene A4 synthase, LOG5
Reactivity:Rat
Detection Method:Sandwich ELISA, Double Antibody
Sensitivity:0.094ng/ml
Range:0.156-10ng/ml
Storage:4°C for 6 months
Note:For Research Use Only
Recovery:Matrices listed below were spiked with certain level of Rat 5-LO and the recovery rates were calculated by comparing the measured value to the expected amount of Rat 5-LO in samples.
MatrixRecovery range(%)Average(%)
serum(n=5)92-10299
EDTA plasma(n=5)89-10397
UFH plasma(n=5)85-10091
Linearity:The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Rat 5-LO and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.
Sample1:21:41:8
serum(n=5)86-105%85-104%85-103%
EDTA plasma(n=5)86-98%89-99%83-99%
UFH plasma(n=5)83-100%85-97%81-93%
Intra-Assay:CV <8%
Inter-Assay:CV <10%
Uniprot:P12527
UniProt Protein Function:5-LO: arachidonate 5-lipoxygenase. Arachidonic acid promotes its phosphorylation by p38 MAPK-regulated MAPKAP kinases. Upregulated in glioblastoma multiforme and colon, pancreatic and bladder cancer.
UniProt Protein Details:

Protein type:Lipid Metabolism - arachidonic acid; Nuclear envelope; Oxidoreductase; Lipid Metabolism - linoleic acid; EC 1.13.11.34

Chromosomal Location of Human Ortholog: 10q11.2

Cellular Component: extracellular space; nuclear membrane; nuclear matrix; nuclear envelope lumen; nuclear envelope; cytosol

Molecular Function:protein binding; iron ion binding; arachidonate 5-lipoxygenase activity

Biological Process: leukotriene biosynthetic process; leukotriene production during acute inflammatory response; lipoxygenase pathway; arachidonic acid metabolic process; leukotriene metabolic process

Disease: Asthma, Susceptibility To

NCBI Summary:This gene encodes a member of the lipoxygenase gene family and plays a dual role in the synthesis of leukotrienes from arachidonic acid. The encoded protein, which is expressed specifically in bone marrow-derived cells, catalyzes the conversion of arachidonic acid to 5(S)-hydroperoxy-6-trans-8,11,14-cis-eicosatetraenoic acid, and further to the allylic epoxide 5(S)-trans-7,9-trans-11,14-cis-eicosatetrenoic acid (leukotriene A4). Leukotrienes are important mediators of a number of inflammatory and allergic conditions. Mutations in the promoter region of this gene lead to a diminished response to antileukotriene drugs used in the treatment of asthma and may also be associated with atherosclerosis and several cancers. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2012]
UniProt Code:P12527
NCBI GenInfo Identifier:4502057
NCBI Gene ID:240
NCBI Accession:NP_000689.1
UniProt Secondary Accession:P12527,P48999, P12527,
UniProt Related Accession:P09917
Molecular Weight:
NCBI Full Name:arachidonate 5-lipoxygenase isoform 1
NCBI Synonym Full Names:arachidonate 5-lipoxygenase
NCBI Official Symbol:ALOX5  
NCBI Official Synonym Symbols:5-LO; 5LPG; LOG5; 5-LOX  
NCBI Protein Information:arachidonate 5-lipoxygenase
UniProt Protein Name:Arachidonate 5-lipoxygenase
UniProt Gene Name:ALOX5  
UniProt Entry Name:LOX5_HUMAN
StepProcedure
1. 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.
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