Mouse Macrophage scavenger receptor types I and II (Msr1) ELISA Kit
The Mouse Macrophage Scavenger Receptor Types I and II (MSR1) ELISA Kit is a highly sensitive and specific assay designed for the accurate detection of MSR1 levels in mouse serum, plasma, and cell culture supernatants. This kit provides reliable and reproducible results, making it an ideal tool for researchers in various fields.MSR1 is a key member of the scavenger receptor family, playing a crucial role in the innate immune response and lipid metabolism. Dysregulation of MSR1 has been linked to a variety of diseases, including atherosclerosis, inflammatory disorders, and Alzheimer's disease.
Studying MSR1 levels can provide valuable insights into the mechanisms underlying these conditions, facilitating the development of new therapeutic strategies.Overall, the Mouse Macrophage Scavenger Receptor Types I and II (MSR1) ELISA Kit offers a powerful tool for investigating the role of MSR1 in health and disease, enabling researchers to advance their understanding of this important protein and its potential implications in various pathological processes.
Product Name:
Mouse Macrophage scavenger receptor types I and II (Msr1) ELISA Kit
SKU:
MOEB1970
Size:
96T
Target:
Mouse Macrophage scavenger receptor types I and II (Msr1)
Synonyms:
Macrophage acetylated LDL receptor I and II, Scavenger receptor type A, SR-A, CD204, Scvr
Assay Type:
Sandwich
Detection Method:
ELISA
Reactivity:
Mouse
Detection Range:
0.156-10ng/ml
Sensitivity:
0.081ng/mL
Intra CV:
6.9%
Inter CV:
8.7%
Linearity:
Sample
1:2
1:4
1:8
1:16
Serum(N=5)
92-101%
85-95%
97-108%
105-115%
EDTA Plasma(N=5)
108-120%
95-105%
105-115%
102-112%
Heparin Plasma(N=5)
106-115%
110-118%
84-96%
88-98%
Recovery:
Sample Type
Average(%)
Recovery Range(%)
Serum
86
80-92
Plasma
88
82-94
Function:
Membrane glycoproteins implicated in the pathologic deposition of cholesterol in arterial walls during atherogenesis. Two types of receptor subunits exist. These receptors mediate the endocytosis of a diverse group of macromolecules, including modified low density lipoproteins (LDL).
Uniprot:
P30204
Sample Type:
Serum, plasma, tissue homogenates, cell culture supernates and other biological fluids
Specificity:
Natural and recombinant mouse Macrophage scavenger receptor types I and II
Sub Unit:
Homotrimer (PubMed:8394868). Interacts with MYO18A.
Research Area:
Cardiovascular
Subcellular Location:
Membrane Single-pass type II membrane protein
Storage:
Please see kit components below for exact storage details
Note:
For research use only
UniProt Protein Function:
MSR1: Membrane glycoproteins implicated in the pathologic deposition of cholesterol in arterial walls during atherogenesis. Two types of receptor subunits exist. These receptors mediate the endocytosis of a diverse group of macromolecules, including modified low density lipoproteins (LDL). Isoform III does not internalize actetylated LDL. Defects in MSR1 may be a cause of prostate cancer (PC). A malignancy originating in tissues of the prostate. Most prostate cancers are adenocarcinomas that develop in the acini of the prostatic ducts. Other rare histopathologic types of prostate cancer that occur in approximately 5% of patients include small cell carcinoma, mucinous carcinoma, prostatic ductal carcinoma, transitional cell carcinoma, squamous cell carcinoma, basal cell carcinoma, adenoid cystic carcinoma (basaloid), signet- ring cell carcinoma and neuroendocrine carcinoma. MSR1 variants may play a role in susceptibility to prostate cancer. MSR1 variants have been found in individuals with prostate cancer and co-segregate with the disease in some families. Defects in MSR1 may be a cause of Barrett esophagus (BE). A condition characterized by a metaplastic change in which normal esophageal squamous epithelium is replaced by a columnar and intestinal-type epithelium. Patients with Barrett esophagus have an increased risk of esophageal adenocarcinoma. The main cause of Barrett esophagus is gastroesophageal reflux. The retrograde movement of acid and bile salts from the stomach into the esophagus causes prolonged injury to the esophageal epithelium and induces chronic esophagitis, which in turn is believed to trigger the pathologic changes. Genetic variants in MSR1 have been found in individuals with Barrett esophagus and are thought to contribute to disease susceptibility. 3 isoforms of the human protein are produced by alternative splicing.Protein type: Membrane protein, integralCellular Component: collagen; membrane; plasma membrane; integral to membrane; cytoplasmic vesicle; cytosolMolecular Function: low-density lipoprotein binding; scavenger receptor activityBiological Process: receptor-mediated endocytosis; cholesterol transport; lipoprotein transport; endocytosis
macrophage scavenger receptor types I and II isoform b
NCBI Synonym Full Names:
macrophage scavenger receptor 1
NCBI Official Symbol:
Msr1
NCBI Official Synonym Symbols:
MSR; Scvr; MRS-A; MSR-A; SR-AI; SR-AII; Scara1
NCBI Protein Information:
macrophage scavenger receptor types I and II; SR-A; scavenger receptor type A; macrophage acetylated LDL receptor I and II
UniProt Protein Name:
Macrophage scavenger receptor types I and II
UniProt Synonym Protein Names:
Macrophage acetylated LDL receptor I and II; Scavenger receptor type A; SR-A; CD_antigen: CD204
Protein Family:
Macrophage scavenger receptor
UniProt Gene Name:
Msr1
UniProt Entry Name:
MSRE_MOUSE
Component
Quantity (96 Assays)
Storage
ELISA Microplate (Dismountable)
8×12 strips
-20°C
Lyophilized Standard
2
-20°C
Sample Diluent
20ml
-20°C
Assay Diluent A
10mL
-20°C
Assay Diluent B
10mL
-20°C
Detection Reagent A
120µL
-20°C
Detection Reagent B
120µL
-20°C
Wash Buffer
30mL
4°C
Substrate
10mL
4°C
Stop Solution
10mL
4°C
Plate Sealer
5
-
Other materials and equipment required:
Microplate reader with 450 nm wavelength filter
Multichannel Pipette, Pipette, microcentrifuge tubes and disposable pipette tips
Incubator
Deionized or distilled water
Absorbent paper
Buffer resevoir
*Note: The below protocol is a sample protocol. Protocols are specific to each batch/lot. For the correct instructions please follow the protocol included in your kit.
Allow all reagents to reach room temperature (Please do not dissolve the reagents at 37°C directly). All the reagents should be mixed thoroughly by gently swirling before pipetting. Avoid foaming. Keep appropriate numbers of strips for 1 experiment and remove extra strips from microtiter plate. Removed strips should be resealed and stored at -20°C until the kits expiry date. Prepare all reagents, working standards and samples as directed in the previous sections. Please predict the concentration before assaying. If values for these are not within the range of the standard curve, users must determine the optimal sample dilutions for their experiments. We recommend running all samples in duplicate.
Step
1.
Add Sample: Add 100µL of Standard, Blank, or Sample per well. The blank well is added with Sample diluent. Solutions are added to the bottom of micro ELISA plate well, avoid inside wall touching and foaming as possible. Mix it gently. Cover the plate with sealer we provided. Incubate for 120 minutes at 37°C.
2.
Remove the liquid from each well, don't wash. Add 100µL of Detection Reagent A working solution to each well. Cover with the Plate sealer. Gently tap the plate to ensure thorough mixing. Incubate for 1 hour at 37°C. Note: if Detection Reagent A appears cloudy warm to room temperature until solution is uniform.
3.
Aspirate each well and wash, repeating the process three times. Wash by filling each well with Wash Buffer (approximately 400µL) (a squirt bottle, multi-channel pipette,manifold dispenser or automated washer are needed). Complete removal of liquid at each step is essential. After the last wash, completely remove remaining Wash Buffer by aspirating or decanting. Invert the plate and pat it against thick clean absorbent paper.
4.
Add 100µL of Detection Reagent B working solution to each well. Cover with the Plate sealer. Incubate for 60 minutes at 37°C.
5.
Repeat the wash process for five times as conducted in step 3.
6.
Add 90µL of Substrate Solution to each well. Cover with a new Plate sealer and incubate for 10-20 minutes at 37°C. Protect the plate from light. The reaction time can be shortened or extended according to the actual color change, but this should not exceed more than 30 minutes. When apparent gradient appears in standard wells, user should terminatethe reaction.
7.
Add 50µL of Stop Solution to each well. If color change does not appear uniform, gently tap the plate to ensure thorough mixing.
8.
Determine the optical density (OD value) of each well at once, using a micro-plate reader set to 450 nm. User should open the micro-plate reader in advance, preheat the instrument, and set the testing parameters.
9.
After experiment, store all reagents according to the specified storage temperature respectively until their expiry.
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 clot overnight at 2-8°C. Centrifuge for 10 minutes at 1,000x g. Remove serum 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 anticoagulant. 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 & homogenize in 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.
