Recombinant Mouse CXCL16 (Histidine-tagged) Protein

Catalog #: 1165-CX Datasheet / COA / SDS

Carrier Free

Catalog #	Availability	Size / Price	Qty
1165-CX-025/CF

With Carrier

Catalog #	Availability	Size / Price	Qty
1165-CX-025

R&D Systems Recombinant Proteins and Enzymes

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Summary Product Datasheets Carrier Free Data Images Reconstitution Calculator Background Related Research Areas

Recombinant Mouse CXCL16 (Histidine-tagged) Protein Summary

Product Specifications

Purity

>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.

Endotoxin Level

<0.10 EU per 1 μg of the protein by the LAL method.

Activity

Measured by its ability to chemoattract BaF3 mouse pro‑B cells transfected with mouse CXCR6. Matloubian, M. et al. (2000) Nat. Immunol. 1:298. The ED₅₀ for this effect is 4-20 ng/mL.

Source

Mouse myeloma cell line, NS0-derived mouse CXCL16 protein
Asn27-Trp201, with a C-terminal 6-His tag

Accession #

Q8BSU2.2

N-terminal Sequence
Analysis

Asn27

Predicted Molecular Mass

19.9 kDa

SDS-PAGE

35-40 kDa, reducing conditions

Product Datasheets

1165-CX (with carrier)

Product Datasheet

COA

SDS

1165-CX/CF (carrier free)

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.

1165-CX

Formulation	Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Reconstitution	Reconstitute at 25 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin.
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. 3 months, -20 to -70 °C under sterile conditions after reconstitution.

1165-CX/CF

Formulation	Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution	Reconstitute at 100 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. 3 months, -20 to -70 °C under sterile conditions after reconstitution.

Reconstitution Calculator

Background: CXCL16

CXC chemokine ligand 16 (CXCL16) is a type I membrane protein containing a non-ELR motif-containing CXC chemokine domain in its extracellular region. Together with Fractalkine (CX3CL1), CXCL16 constitute the only two transmembrane chemokines within the superfamily. Mouse CXCL16 cDNA encodes a 246 amino acid (aa) precursor protein with a putative 26 aa residue signal peptide, an 88 aa residue chemokine domain, an 87 aa residue mucin-like spacer region, a 22 aa residue transmembrane domain, and a 23 aa residue cytoplasmic tail with a potential tyrosine phosphorylation and SH2 protein-binding site. Mouse and human CXCL16 share 49% overall aa identity and 70% similarity in the chemokine domains. Mouse CXCL16 is produced by dendritic cells in lymphoid organ T cell zones and by cells in the splenic red pulp both as membrane-bound and soluble forms. Based on northern blot analysis, CXCL16 is also expressed in some nonlymphoid tissues such as lung, small intestine and kidney. The functional receptor for CXCL16 has been identified as CXCR6 (also known as Bonzo, STRL33 or TYMSTR), a receptor previously shown to be a co-receptor for HIV entry. CXCL16 has also been independently cloned and named SRPSOX (scavenger receptor that binds phosphatidylserine and oxidized lipoprotein). It was shown to be a specific receptor for OxLDL but not LDL or acetyl-LDL (1 - 3).

References

Matloubian, M. et al. (2000) Nature Immun. 1:298.
Shimaoka, T. et al. (2000) J. Biol. Chem. 275:40663.
Wilbanks, A. et al. (2001) J. Immun. 166:5145.

Entrez Gene IDs

58191 (Human); 66102 (Mouse)

Alternate Names

chemokine (C-X-C motif) ligand 16; CXC chemokine ligand 16; CXCL16; CXCLG16; Scavenger receptor for phosphatidylserine and oxidized low density lipoprotein; SCYB16; Small-inducible cytokine B16; SRPSOXC-X-C motif chemokine 16; SR-PSOXTransmembrane chemokine CXCL16