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Invitrogen
CD204 Monoclonal Antibody (PSL204), APC, eBioscience™
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FIGURE: 1 / 1
CD204 Antibody (17-2045-42) in Flow
Human monocyte-derived macrophages were stained with Fixable Viability Dye eFluor® 450 (Product # 65-0863-14) and Fc-blocked with Human Fc Receptor Binding Inhibitor Purified (Product # 14-9161-73). Subsequently the cells were stained with Anti-Human CD11b FITC (Product # 11-0118-42) and Mouse IgG1 K Isotype Control APC (Product # 17-4714-42) (left) or Anti-Human CD204 APC (right). Total viable cells were used for analysis.
Product Details
17-2045-42
Product Specifications
Species Reactivity
Human
Host/Isotype
Mouse
/ IgG1, kappa
Recommended Isotype Control
Class
Monoclonal
Type
Antibody
Clone
PSL204
Conjugate
Excitation/Emission Max
651/660 nm
View spectra
Form
Liquid
Concentration
5 µL/Test
Purification
Affinity chromatography
Storage buffer
PBS with BSA
Contains
0.09% sodium azide
Storage conditions
4°C, store in dark, DO NOT FREEZE!
Shipping conditions
Ambient (domestic); Wet ice (international)
RRID
Product Specific Information
This monoclonal antibody PSL204 reacts with human CD204, also known as Macrophage Scavenger Receptor 1 (MSR1), Scavenger Receptor Type A (SR-A), or SCARA1. It is expressed by multiple populations of macrophages and dendritic cells. CD204 belongs to the class A family of scavenger receptors, a group of five homotrimetric transmembrane proteins that contain a short cytoplasmic tail and extracellular C -terminus. Other members of this family include: MARCO (SCARA2), CSR (SCARA3), SRCL (SCARA4) and SCARA5. CD204 binds and internalizes oxidized low density lipoproteins (LDL), which drives macrophage differentiation into foam cells, secretion of inflammatory cytokines, and development of atherosclerotic lesions. In addition to oxidized LDL, CD204 binds and uptakes a wide variety of macromolecules, including bacterial cell wall components, viral DNA, calciprotein complexes, apoptotic cells, and beta-amyloid fibrils. This broad binding specificity implicates CD204-expressing macrophages in a number of physiological processes and pathologies, such as host defense, inflammation, bone remodeling, atherosclerosis, sepsis, and Alzheimer's disease.
In humans, CD204 exists as 3 splice variants. The more ubiquitous full length isoform (type I, SR-AI), a shorter isoform (type II, SR-AII) that lacks the C-terminal cysteine-rich domain, and the shortest isoform (type III, SR-AIII). Isoforms I and II bind modified LDL with similar affinity, whereas isoform III is not expressed on the cell surface. This monoclonal antibody PSL204 binds only the long (type I, SR-AI) isoform. The PSL204 will recognize CD204 on cells that have been formaldehyde-fixed and permeabilized. This antibody does not cross-react with mouse or rat CD204.
This PSL204 antibody has been pre-titrated and tested by flow cytometric analysis of human monocyte-derived macrophages. This can be used at 5 µL (0.125 µg) per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test.
Filtration: 0.2 µm post-manufacturing filtered.
Target Information
CD204 gene encodes the class A macrophage scavenger receptors, which include three different types (1, 2, 3) generated by alternative splicing of this gene. These receptors or isoforms are macrophage-specific trimeric integral membrane glycoproteins and have been implicated in many macrophage-associated physiological and pathological processes including atherosclerosis, Alzheimer's disease, and host defense. The isoforms type 1 and type 2 are functional receptors and are able to mediate the endocytosis of modified low density lipoproteins (LDLs). The isoform type 3 does not internalize modified LDL (acetyl-LDL) despite having the domain shown to mediate this function in the types 1 and 2 isoforms. It has an altered intracellular processing and is trapped within the endoplasmic reticulum, making it unable to perform endocytosis. The isoform type 3 can inhibit the function of isoforms type 1 and type 2 when co-expressed, indicating a dominant negative effect and suggesting a mechanism for regulation of scavenger receptor activity in macrophages. Diseases associated with MSR1 include Barrett Esophagus and Prostate Cancer.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Protein Aliases: CD204; Macrophage acetylated LDL receptor I and II; macrophage scavenger receptor type III; Macrophage scavenger receptor types I and II; Scavenger receptor class A member 1; SR-AI/II; unnamed protein product
Gene Aliases: CD204; MSR1; phSR1; phSR2; SCARA1; SR-A; SR-AI; SR-AII; SR-AIII; SRA
UniProt ID: (Human) P21757
Entrez Gene ID: (Human) 4481
endocytosis
receptor-mediated endocytosis
phagocytosis, engulfment
negative regulation of gene expression
positive regulation of macrophage derived foam cell differentiation
positive regulation of cholesterol storage
cholesterol transport
plasma lipoprotein particle clearance
lipoprotein transport
establishment of localization in cell
beta-amyloid clearance
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