ProSpec | Recombinant Protein Manufacturer
0 items|0 $
Protein Catalog
Cytokines
Growth Factors
Chemokines
CD Antigens
Neurotrophins
Hormones
Enzymes
Viral Antigens
Recombinant Proteins
Natural Proteins
Monoclonal Antibodies
Polyclonal Antibodies
Protein Catalog >> Growth Factors >> Insulin-Like Growth Factor  >> IGF1 Gilthead Seabream
print add to favorites
Description
Our Price Quantity Shipping  
Insulin-Like Growth Factor 1 Gilthead Seabream Recombinant
 
Catalogue Number CYT-295
Synonyms Somatomedin C, IGF-I, IGFI.
Introduction The somatomedins, or insulin-like growth factors (IGFs), comprise a family of peptides that play important roles in mammalian growth and development. IGF1 mediates many of the growth-promoting effects of growth hormone (GH; MIM 139250). Early studies showed that growth hormone did not directly stimulate the incorporation of sulfate into cartilage, but rather acted through a serum factor, termed 'sulfation factor,' which later became known as 'somatomedin' (Daughaday et al., 1972). Three main somatomedins have been characterized: somatomedin C (IGF1), somatomedin A (IGF2; MIM 147470), and somatomedin B (MIM 193190) (Rotwein, 1986; Rosenfeld, 2003).
Description Insulin-Like Growth Factor-IGilthead SeabreamRecombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 68 amino acids and having a molecular mass of 7545.4 Dalton, the predicted pI=7.72.
IGF-1 is purified by proprietary chromatographic techniques.
Source Escherichia Coli.
Physical Appearance Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation The protein was lyophilized from a concentrated (1mg/ml) solution with 0.02% NaHCO3.
Solubility It is recommended to reconstitute the lyophilized IGF-1 in sterile 0.4% NaHCO3 adjusted, not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Stability Lyophilized Insulin-Like Growth Factor-1 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IGF1 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 prevent freeze-thaw cycles.
Purity Greater than 98.0% as determined by:
(a) Analysis by SEC-HPLC.
(b) Analysis by SDS-PAGE.
Amino acid sequence The sequence of the first ten N-terminal amino acids was determined and was found to be Met-Ser-Pro-Glu-Thr-Leu-Cys-Gly-Ala-Glu.
Biological Activity Binding assays of the 125I-Gealthead Seabream IGF1 to Gilthead Seabream or carp (Cyprinus carpio) sera resulted in high specific binding, indicating the existence of one or more IGF-binding proteins. In binding experiments to crude Gilthead Seabream brain homogenate, using human (h) IGF-I as a ligand, the respective IC50 value of hIGF1 was about fourfold lower than that of Gilthead Seabream IGF-1. Recombinant Gilthead Seabream IGF-1 exhibited mitogenic activity in a mouse mammary gland-derived MME-L1 cell line which was approximately 200-fold lower than that of hIGF1. Binding experiments to intact MME-L1 cells suggests that this difference most likely results from a correspondingly lower affinity for IGF1 receptor in these cells. In contrast, the activities of Gilthead Seabream IGF-I and hIGF-I measured by 35S uptake by gill arches from the goldfish (Carassius auratus) were identical, indicating that the recombinant Gilthead Seabream IGF-I is biologically active.
Protein content Somatomedin C quantitation was carried out by two independent methods1. UV spectroscopy at 280 nm using the absorbency value of 0.60 as the extinction coefficient for a 0.1% (1mg/ml) solution at pH 8.0. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).
2. Analysis by RP-HPLC, using a calibrated solution of IGF1 as a Reference Standard.
Usage ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
Related Products
» IGF1 Human
» IGF1 Human Des1-3
» IGF1 Human, GST
» IGF1 Mouse
» IGF1 N15 Human
» IGF1 Rabbit
» IGF1 Rat
» LR3 IGF1 Human
Contact Us

Toll Free Phone: 1-(866)-245-0885
Toll Free Fax:  1-(866)-796-4944
Postal Address: PO Box 6591,
East Brunswick, 08816 NJ

Toll Free Phone: 00-800-800-66666
Toll Free Fax: 00-800-800-67890

International Phone: +972-8-9471175
International Fax: +972-8-9460534
Postal Address: PO Box 4157,
Ness-Ziona, 74140 Israel

Website : www.prospecbio.com
Email: info@prospecbio.com

 
  Home | Legal | Privacy | Site Map | Cytokines | Growth Factors | Chemokines | CD Antigens | Neurotrophins | Hormones | Enzymes | Recombinant Proteins | Viral Antigens | Monoclonal Antibodies