SR-AI/MSR Antibody


Western Blot: SR-AI/MSR Antibody [NBP1-00093] - Detection of Macrophage Scavenger Receptor I in human liver.
Immunocytochemistry/ Immunofluorescence: SR-AI/MSR Antibody [NBP1-00093] - The MSR antibody was tested in Raw cells at a 1:50 dilution against Dylight 488 (Green). Alpha-tubulin and nuclei were counterstained against more

Product Details

Reactivity Hu, Mu, Rt, Bv, Ca, Eq, PmSpecies Glossary
Applications WB, ICC/IF
1 mg/ml

SR-AI/MSR Antibody Summary

Synthetic peptide made to a cyclized peptide from human Macrophage Scavenger Receptor I (within residues 400-450). [Swiss-Prot# P21757]
Membrane; Single-pass type II membrane protein.
Predicted Species
Rat (92%), Primate (93%), Bovine (93%), Canine (100%), Equine (100%). Backed by our 100% Guarantee.
Immunogen affinity purified
Innovator's Reward
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  • Western Blot 0.5 ug/ml
  • Immunocytochemistry/Immunofluorescence 1:50-1:200
Application Notes
This Macrophage Scavenger Receptor I antibody is useful for Immunocytochemistry/Immunofluorescence and Western blot, where a band is seen ~50 kDa.

The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
Theoretical MW
50 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
Positive Control
Liver Lysate (NB820-59232)
SR-AI/MSR Lysate (NBL1-13335)
Control Peptide
SR-AI/MSR Peptide (NBP1-00093PEP)

Reactivity Notes

Reacts with human and mouse. 100% sequence identity with horse and dog, 93% identity with monkey and bovine, 92% identity with rat.

Packaging, Storage & Formulations

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
PBS and 30% Glycerol
0.1% Sodium Azide
1 mg/ml
Immunogen affinity purified

Alternate Names for SR-AI/MSR Antibody

  • CD204 antigen
  • CD204
  • Macrophage acetylated LDL receptor I and II
  • macrophage scavenger receptor 1
  • macrophage scavenger receptor type III
  • MSR1
  • phSR1
  • phSR2
  • SCARA1
  • SCARA1macrophage scavenger receptor types I and II
  • Scavenger receptor class A member 1
  • scavenger receptor class A, member 1
  • SR-A
  • SRAI
  • SR-AI


Macrophage Scavenger Receptor I (MSR1, also called CD204 or scavenger receptor A) belongs to scavenger receptor A family and represents phagocytic pattern-recognition receptors (PRRs) expressed predominantly on macrophages and dendritic cells. MSR1 is a single-pass type II membrane glycoprotein capable of binding to a wide range of polyanionic ligands (e.g., modified low density lipoproteins, pathogen-derived molecules), and is implicated in the pathologic deposition of cholesterol in arterial walls during atherogenesis, innate immune response as well as Alzheimer's disease. MSR1 mediates the endocytosis of a diverse group of macromolecules including modified LDLs, and scavenger receptors MSR1, CD36 and LOX-1 are three main receptors for oxidized LDL on macrophage membrane wherein MSR1/CD36 account for more than 9/10 of the lipid accumulation in macrophages exposed to oxidized LDL. Defects in MSR1 have also been linked to prostate cancer and Barrett esophagus (BE).


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Product General Protocols

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Video Protocols

WB Video Protocol
ICC/IF Video Protocol

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Positive Control Lysate(s)

Secondary Antibodies


Isotype Controls

Other Available Formats

Alexa Fluor 405 Labeled NBP1-00093AF405
Alexa Fluor 488 Labeled NBP1-00093AF488
Alexa Fluor 647 Labeled NBP1-00093AF647
Alexa Fluor 700 Labeled NBP1-00093AF700
Biotin Labeled NBP1-00093B
DyLight 405 Labeled NBP1-00093V
DyLight 488 Labeled NBP1-00093G
DyLight 550 Labeled NBP1-00093R
DyLight 650 Labeled NBP1-00093C
FITC Labeled NBP1-00093F
HRP Labeled NBP1-00093H

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Gene Symbol MSR1