Recombinant Human CXCL12/SDF-1 beta Protein

Name: Recombinant Human CXCL12/SDF-1 beta Protein
Brand: Novus Biologicals
SKU: NBP2-35260

Novus Biologicals, part of Bio-Techne | Catalog # NBP2-35260

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Product Specifications
Scientific Data
Preparation & Storage
Background
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Specific Notices

Key Product Details

Source

E. coli

Accession #

P48061

Conjugate

Unconjugated

Applications

Bioactivity, SDS-PAGE

View all CXCL12/SDF-1 beta Proteins and Enzymes »

Product Specifications

Description

A single non-glycosylated polypeptide chain containing 72 amino acid residues corresponding to CXCL12/SDF-1 beta Source: E. coli

Uniprot ID: P48061

Amino Acid Sequence: KPVSLSYRCP CRFFESHVAR ANVKHLKILN TPNCALQIVA RLKNNNRQVC IDPKLKWIQE YLEKALNKRF KM

This lyophilized preparation is stable at 2-8 degrees C, but should be kept at -20 degrees C for long term storage, preferably desiccated. Upon reconstitution, the preparation is most stable at -20 to -80 degrees C, and can be stored for one week at 2-8 degrees C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 degrees C to -80 degrees C. Avoid repeated freeze/thaw cycles.

Purity

> 97 % pure by SDS-PAGE and HPLC

Endotoxin Level

Less than 1 EU/ug of CXCL12/SDF-1 beta as determined by LAL method.

Predicted Molecular Mass

8.5 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.

Activity

SDF1 beta Protein is fully biologically active when compared to standard. The biological activity determined by a chemotaxis bioassay using PHA and rHuIL-2 activated human peripheral blood T-lymphocytes is in a concentration range of 20-80 ng/ml.

Protein / Peptide Type

Recombinant Protein

Scientific Data Images for Recombinant Human CXCL12/SDF-1 beta Protein

SDS-PAGE: Recombinant Human CXCL12/SDF-1 beta Protein [NBP2-35260]

SDS-Page: Human CXCL12/SDF-1 beta Protein [NBP2-35260]

Formulation, Preparation and Storage

NBP2-35260

Formulation	Lyophilized from a 0.2 um filtered concentrated solution in PBS, pH 7.4.
Preservative	No Preservative
Concentration	Lyoph
Reconstitution	Recommended to centrifuge prior to opening. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0mg/mL. Apportion stock solutions into working aliquots and store at
Format	Carrier-Free
Shipping	The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage	Store at -20 to -70C as supplied. After reconstitution, store at 2 to 8C for 1 month and at -20 to -70C for long term storage. Avoid repeated freeze-thaw cycles.

Background: CXCL12/SDF-1 beta

CXCL12 also known as SDF-1 is belonging to the CXC chemokine family. It is encoded by the CXCL12 gene. In recently study, Human CXCL12 is expressed as six isoforms that differ only in the C-terminal tail. And all SDF-1 isoforms undergo proteolytic processing of the first two N-terminal amino acids. In all SDF-1 isoforms, SDF-1 beta is the canonical sequence. It has the complete amino acids in the C-terminal tail. On the cell surface, the receptor for this chemokine is CXCR4 and syndecan4. CXCL12 is strongly chemotactic for T-lymphocytes, monocytes, but not neutrophils. CXCL12 is a very important factor in carcinogenesis and the neovascularisation linked to tumor progression.

Alternate Names

SDF1 beta, SDF1b, CXCL12 beta, SDF-1 beta, SDF-1 beta/CXCL12 beta

Gene Symbol

CXCL12

UniProt