Source: E.Coli   Catalog No.: CHM-314   Description :

Recombinant Human Lymphotactin produced in E.Coli is a single,non-glycosylated, polypeptide chain containing 92 amino acids and having a molecular mass of 10007 Dalton. Human Lymphotactin is purified by proprietary chromatographic techniques.

Physical Appearance:

Sterile Filtered White lyophilized (freeze-dried) powder.

Formulation:

Human Lymphotactin was lyophilized from a concentrated (1mg/ml) sterile solution containing no additives.

Solubility:

It is recommended to reconstitute the lyophilized Human Lymphotactin in sterile 18MO-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

Stability:

Lyophilized Human Lymphotactin although stable at room temperature for 3 weeks, should be stored desiccated below -18 °C. Upon reconstitution Human Lymphotactin should be stored at 4 °C between 2-7 days and for future use below -18 °C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).  Please avoid freeze-thaw cycles.

Purity:

Greater than 99.0% as determined by: (a) Analysis by RP-HPLC. (b) Anion-exchange FPLC. (c) Analysis by reducing and non-reducing SDS-PAGE Silver Stained.

Amino-Acid Sequence :

The sequence of the first five N-terminal amino acids was determined and was found to be Gln-Ser-Glu-Val-Ser.

Dimers and aggregates:

Less than 1% as determined by silver-stained SDS-PAGE gel analysis.

Biological Activity:

Lymphotactin is fully biologically active when compared to standard. The Biological activity is calculated by its ability to chemoattract human T cells at 10.0-100.0 ng/ml.

Endotoxin:

Less than 0.1 ng/µg (IEU/µg) of Lymphotactin.

Protein content:

Protein quantitation was carried out by two independent methods: 1. UV spectroscopy at 280 nm . 2. Analysis by RP-HPLC, using a calibrated solution of Lymphotactin as a Reference Standard.

Usage:

Product is furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.