Recombinant CNTF, Human

• Catalog Number: orb1494901
• Category: Proteins
• Description: Ciliary Neurotrophic Factor (CNTF) is a cytokine belonging to the Interleukin 6 (IL-6) family, which also includes IL-6, Oncostatin M, Leukemia Inhibitory Factor (LIF), and Cardiotrophin-1. Structurally, CNTF resembles a four-helix bundle composition, similar to the other members of the IL-6 family. The receptor for CNTF is composed of three parts: a gp130-like subunit common in the IL-6 receptor family, a LIF Receptor β subunit, and a CNTF specific α receptor subunit. Upon binding to the CNTF, the β subunit of the CNTF receptor will undergo tyrosine phosphorylation, and activate the intracellular JAK/STAT pathway. The main function of CNTF in vivo is to promote the differentiation and survival of a variety of neurons and glial cells, including sympathetic precursor cells and spinal motor neurons.Recombinant human Ciliary Neurotrophic Factor (rhCNTF) produced in E. coli is a single non-glycosylated polypeptide chain containing 199 amino acids. A fully biologically active molecule, rhCNTF has a molecular mass of 22.8 kDa analyzed by reducing SDS-PAGE and is obtained by proprietary chromatographic techniques at GenScript.
• Form/Appearance: Sterile Filtered White lyophilized (freeze-dried) powder.
• MW: 22.8 kDa, observed by reducing SDS-PAGE.
• Protein Sequence: AFT EHSPLTPHRR DLCSRSIWLA RKIRSDLTAL TESYVKHQGL NKNINLDSAD GMPVASTDQW SELTEAERLQ ENLQAYRTFH VLLARLLEDQ QVHFTPTEGD FHQAIHTLLL QVAAFAYQIE ELMILLEYKI PRNEADGMPI NVGDGGLFEK KLWGLKVLQE LSQWTVRSIH DLRFISSHQT GIPARGSHYI ANNKKM
• Source: Escherichia coli.
• Biological Activity: ED50 5×10ˆ3 units/mg.
• Endotoxins: < 0.2 EU/μg, determined by LAL method.
• Storage: Lyophilized recombinant human Ciliary Neurotrophic Factor (rhCNTF) remains stable up to 6 months at -80°C from date of receipt. Upon reconstitution, rhCNTF remains stable up to 2 weeks at 4°C or up to 3 months at -20°C.
• Buffer/Preservatives: Lyophilized after extensive dialysis against PBS.
• Alternative names: Ciliary Neurotrophic Factor
• Note: For research use only
• Application notes: Reconstituted in ddH2O or PBS at 100 μg/ml.
• Expiration Date: 6 months from date of receipt.