| Description : |
Cardiotrophin1 (CT1) is a member of the cytokine family which also includes IL-6, IL-11, leukemia inhibitory factor (LIF), oncostatin M (OSM), and ciliary neurotrophic factor (CNTF). CT-1 is a pleiotropic cytokine which is expressed in various tissues including the adult heart, skeletal muscle, ovary, colon, prostate and fetal lung. Studies showed CT-1 which induces cardiac myocyte hypertrophy in vitro can bind to and activate the ILST/gp130 receptor. Rat CT1 encodes a 203 amino acid (a.a.) residue protein that lacks a hydrophobic signal peptide and it shares 94% a.a. and 79% a.a. sequence identity with human and murine CT-1. |
| Source : |
E.coli |
| Species : |
Rat |
| Form : |
Lyophilized from a 0.2μm filtered concentrated solution in 30 % Acetonitrile, 0.1 % TFA. |
| Bio-activity : |
Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using human TF-1 cells is less than 0.5 ng/ml, corresponding to a specific activity of > 2.0 × 10⁶ IU/mg. |
| Molecular Mass : |
Approximately 21.4 kDa, a single non-glycosylated polypeptide chain containing 203 amino acids. |
| Protein length : |
203 |
| AA Sequence : |
MSQREGSLEDHQTDSSFSFLPHLEA KIRQTHNLARLLTKYADQLLEEYVQ QQGEPFGLPGFSPPRLPLAGLSGPA PSHAGLPVSERLRQDAAALSALPAL LDAVRRRQAELNPRAPRLLRSLEDA ARQVRALGAAVETVLAALGAAARGP VPEPVATSALFTSNSAAGVFSAKVL GLHVCGLYGEWVSRTEGDLGQLVPG GVA |
| Endotoxin : |
Less than 1 EU/μg of rRtCT-1 as determined by LAL method. |
| Purity : |
>95% by SDS-PAGE and HPLC analysis. |
| Storage : |
Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20 to -70 centigrade as supplied. 1 month, 2 to 8 centigrade under sterile conditions after reconstitution. 3 months, -20 to -70 centigrade under sterile conditions after reconstitution. |
| Reconstitution : |
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in 4mM HCl to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤-20 centigrade. Further dilutions should be made in appropriate buffered solutions. |
