Recombinant Human SR-AI/MSR Protein

Cat. No.: rp143879
AVAILABLE TO ORDER
GRADE & PURITY Animal Free ? Animal-free — produced without animal-derived components to reduce contamination risk. Use in biomanufacturing and culture avoiding animal-origin material. Carrier Free ? Carrier-free — supplied without added carrier protein/stabilizer. Use when carriers (e.g. BSA) would interfere with conjugation or sensitive assays. Bioactive ? Bioactive grade — verified to retain biological activity in functional assays. Use when the molecule must be functionally active, not just pure. ActiBioPure™ ? ActiBioPure™ — Aladdin's premier line for bioactive and recombinant products. Use when both high purity and preserved biological activity are required. His Tag ? His tag grade — recombinant protein bearing a His tag for affinity purification/detection. Use to purify, immobilize, or detect the tagged protein. ≥95%(SDS-PAGE)
Accession #
P21757
Protein Tag
N-His
Expression system
HEK293
Endotoxin Concentration
<0.1 EU/μg
Bioactivity
Measured by its binding ability in a functional ELISA. Immobilized Recombinant Human SR‑AI/MSR at 5 µg/mL (100 µL/well) can bind biotinylated advanced glycation endproducts of bovine serum albumin (AGE-BSA) with a linear range of 6-400 ng/mL.
Size
USA
Germany (EU)*
Price
Qty
10μg
rp143879-10μg
9 In stock
$153.90
50μg
rp143879-50μg
3 In stock
$459.90
100μg
rp143879-100μg
1 In stock
$735.90
1mg
rp143879-1mg
US Made to order · 2–4 wks ·
$4,939.90
Enter a quantity for the sizes you want to add.
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Why this grade

Animal Free,Carrier Free,Bioactive,ActiBioPure™,His-Tag,≥95%(SDS-PAGE) ActiBioPure™,Animal Free,Bioactive,Carrier Free,His Tag for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Store at -20°C,Avoid repeated freezing and thawing Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

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). Isoform III does not internalize actetylated LDL.

Specifications

Product Name
Recombinant Human SR-AI/MSR Protein
Synonyms
Macrophage acetylated LDL receptor I and II | Scavenger receptor class A member 1 | CD204 | CD204 antigen | Macrophage acetylated LDL receptor I and II | macrophage scavenger receptor 1 | macrophage scavenger receptor type III | MSR1 | phSR1 | phSR2 | SCA
Grade
ActiBioPure™, Animal Free, Bioactive, Carrier Free, His Tag
Specifications & Purity
Animal Free,Carrier Free,Bioactive,ActiBioPure™,His-Tag,≥95%(SDS-PAGE)
Bioactivity
Measured by its binding ability in a functional ELISA. Immobilized Recombinant Human SR‑AI/MSR at 5 µg/mL (100 µL/well) can bind biotinylated advanced glycation endproducts of bovine serum albumin (AGE-BSA) with a linear range of 6-400 ng/mL.
Endotoxin Concentration
<0.1 EU/μg
Expression System
HEK293
Species
Human
Amino Acids
77-451 aa
Sequence
HHHHHHKWETKNCSVSSTNANDITQSLTGKGNDSEEEMRFQEVFMEHMSNMEKRIQHILDMEANLMDTEHFQNFSMTTDQRFNDILLQLSTLFSSVQGHGNAIDEISKSLISLNTTLLDLQLNIENLNGKIQENTFKQQEEISKLEERVYNVSAEIMAMKEEQVHLEQEIKGEVKVLNNITNDLRLKDWEHSQTLRNITLIQGPPGPPGEKGDRGPTGESGPRGFPGPIGPPGLKGDRGAIGFPGSRGLPGYAGRPGNSGPKGQKGEKGSGNTLTPFTKVRLVGGSGPHEGRVEILHSGQWGTICDDRWEVRVGQVVCRSLGYPGVQAVHKAAHFGQGTGPIWLNEVFCFGRESSIEECKIRQWGTRACSHSEDAGVTCTL
Protein Tag
N-His
Accession #
Predicted molecular weight
43 kDa
SDS-PAGE
53 - 76 kDa, under reducing conditions; 50 - 72 & 100 - 140 kDa, under non-reducing conditions.
Molecule Type
Protein
Storage and Shipping
Shape
Liquid
Reconstitution
Reconstitute in sterile water to a concentration of 0.1-0.5 mg/ml.
Storage
Store at -20°C,Avoid repeated freezing and thawing
Shipped In
Ice chest + Ice pads
Stability And Storage
Store at -20~-80℃ for more than 1 year. Upon receipt, it is recommended to aliquot. Avoid freeze/thaw cycle.
Images

Recombinant Human SR-AI/MSR Protein (rp143879) - SDS-PAGE
3 μg/lane of Recombinant Human SR-AI/MSR Protein was resolved with SDS-PAGE under reducing (R) and non-reducing (N) conditions and visualized by Coomassie® Blue staining, showing the band at 53 - 76 kDa under reducing condition and 50 - 72 & 100 - 140 kDa under non-reducing condition.

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

3 results found

Lot NumberCertificate TypeDateItem
ZJ25F0217646Certificate of AnalysisSep 03, 2026 rp143879
ZJ25F0217647Certificate of AnalysisSep 03, 2026 rp143879
ZJ25F0217648Certificate of AnalysisSep 03, 2026 rp143879
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