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Recombinant Human SCARA5 Protein, CF

Catalog #: 4900-SR Datasheet / COA / SDS
Catalog # Availability Size / Price Qty
4900-SR-050
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Recombinant Human SCARA5 Protein, CF Summary

Product Specifications

Purity
>85%, by SDS-PAGE under reducing conditions and visualized by silver stain
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Activity
Measured by its ability to bind fluorescein-conjugated S. aureus Bioparticles. Jiang, Y. et al. (2006) J. Biol. Chem. 281:11834. The ED50 for this effect is 0.4-2 µg/mL.
Source
Mouse myeloma cell line, NS0-derived human SCARA5 protein
Arg83-His495, with an N-terminal 6-His tag
Accession #
Q6ZMJ2
N-terminal Sequence
Analysis
His
Predicted Molecular Mass
45.9 kDa
SDS-PAGE
66-75 kDa, reducing conditions

Product Datasheets

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4900-SR

Product Datasheet
COA
SDS

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

4900-SR

Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 250 μg/mL in sterile PBS.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: SCARA5

Scavenger receptor A5 (SCARA5) is also known as testis expressed scavenger receptor (Tesr). Class A scavenger receptors, including CL-P1, MARCO, SCARA3, and SR-A1, are type II transmembrane proteins that contain a collagenous stalk (1 - 3). Mature human SCARA5 consists of a 60 amino acid (aa) cytoplasmic domain, a 21 aa transmembrane segment, and a 414 aa extracellular domain (ECD) with a spacer, a collagen-like, and a scavenger receptor cysteine-rich (SRCR) domain (4 - 6). Within the ECD, human SCARA5 shares 87% aa sequence identity with mouse and rat SCARA5. It shares 23% - 34% aa sequence identity with CL-P1, MARCO, SCARA3, and SR-A1. Alternate splicing generates isoforms that lack the SRCR domain, the transmembrane segment, or the 225 aa spacer region between the membrane and the collagen-like domain (6). SCARA5 is a cell surface disulfide-linked homotrimer of > 250 kDa (5). It is highly expressed in testicular Sertoli and germ cells and more weakly in the epithelia of other tissues (4, 5). During mouse development, SCARA5 expression is attenuated in female embryos at the time of sex determination, whereas it is maintained in the developing testis (4). SCARA5 is re-expressed in the adult ovary (4). SCARA5 binds heat-killed bacterial particles but not yeast particles or modified LDL (5).

References
  1. Murphy, J.E. et al. (2005) Atherosclerosis 182:1.
  2. Mukhopadhyay, S. And S. Gordon (2004) Immunobiology 209:39.
  3. Sarrias, M.R. et al. (2004) Crit. Rev. Immunol. 24:1.
  4. Sarraj, M.A. et al. (2005) Dev. Dyn. 234:1026.
  5. Jiang, Y. et al. (2006) J. Biol. Chem. 281:11834.
  6. Accession # Q6ZMJ2.
Long Name
Scavenger Receptor Class A Member 5
Entrez Gene IDs
286133 (Human); 71145 (Mouse); 305974 (Rat)
Alternate Names
FLJ23907; MGC45780; SCARA5; scavenger receptor class A, member 5 (putative); Tesr; testis expressed scavenger receptor; UNQ2938/PRO28700

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