		Technical Data
S7975-50A	Stromal Cell Derived Factor 1 alpha, Recombinant, Human (SDF1a)	10ug

Growth Factors, Cytokines

Storage: -20°CShipping: Blue Ice

Recombinant Human SDF-1 is a non-glycosylated polypeptide chain containing 68aa and having a molecular weight of ~8kD. The sequence of the first five N-terminal amino acids was determined to be Lys-Pro-Val-Ser-Leu.

Molecular Weight:
~8kD

Biological Activity:
The specific activity is determined by its ability to chemoattract human peripheral T cells activated with PHA and IL-2 using a concentration of 20-80ng/ml.

Storage and Stability:
Lyophilized powder may be stored at -20°C. Stable for 12 months at -20°C. Reconstitute with sterile ddH2O. For long term storage add 0.1% HSA or BSA. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Reconstituted product is stable for 6 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

Molecular Weight:
~8kD

Source: E. coli
Purity: 98% pure (RP-HPLC and SDS-PAGE).
Form: Supplied as a lyophilized powder from water containing no additives. Reconstitute using sterile deionized water to a concentration 100ug/ml.

Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.

Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.