Recombinant Human CNTF Protein

SKU: orb527077

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 receptorwill 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.

Key Properties

• Source: E. coli His12-Met200
• Reactivity: Human
• Purification: > 95%, by SDS-PAGE quantitative densitometry by Coomassie? Blue Staining.
• Endotoxins: Less than 1 EU/μg of rhCNTF as determined by LAL method.
• MW: 21.7KD
• Protein Sequence: HRRDL CSRSI WLARK IRSDL TALTE SYVKH QGLNK NINLD SADGM PVAST DQWSE LTEAE RLQEN LQAYR TFHVL LARLL EDQQV HFTPT EGDFH QAIHT LLLQV AAFAY QIEEL MILLE YKIPR NEADG MPINV GDGGL FEKKL WGLKV LQELS QWTVR SIHDL RFISS HQTGI PARGS HYIAN NKKM

Storage & Handling

• 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.
• Form/Appearance: Lyophilized
• Expiration Date: 6 months from date of receipt.
• Disclaimer: For research use only

Quick Database Links

UniProt

P26441