Recombinant Sheep Tumor Necrosis Factor (TNF) Protein (His)

Name: Recombinant Sheep Tumor Necrosis Factor (TNF) Protein (His)
Brand: Beta LifeScience
SKU: BLC-10857P
Availability: InStock

Greater than 90% as determined by SDS-PAGE.

Collections: Antibody / cell therapy targets, Antibody therapeutic / adc target proteins, Cytokines, Cytokines and growth factors, Recombinant proteins, Tumor necrosis factors and receptors (tnfs)

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Product Overview

Description	Recombinant Sheep Tumor Necrosis Factor (TNF) Protein (His) is produced by our Yeast expression system. This is a protein fragment.
Purity	Greater than 90% as determined by SDS-PAGE.
Uniprotkb	P23383
Target Symbol	TNF
Synonyms	TNF; TNFA; TNFSF2; Tumor necrosis factor; Cachectin; TNF-alpha; Tumor necrosis factor ligand superfamily member 2; TNF-a) [Cleaved into: Tumor necrosis factor; membrane form; N-terminal fragment; NTF); Intracellular domain 1; ICD1); Intracellular domain 2; ICD2); C-domain 1; C-domain 2; Tumor necrosis factor; soluble form]
Species	Ovis aries (Sheep)
Expression System	Yeast
Tag	N-6His
Target Protein Sequence	LRSSSQASNNKPVAHVVANISAPGQLRWGDSYANALMANGVELKDNQLVVPTDGLYLIYSQVLFRGHGCPSTPLFLTHTISRIAVSYQTKVNILSAIKSPCHRETLEGAEAKPWYEPIYQGGVFQLEKGDRLSAEINLPEYLDYAESGQVYFGIIAL
Expression Range	78-234aa
Protein Length	Partial
Mol. Weight	19.2 kDa
Form	Liquid or Lyophilized powder
Buffer	Liquid form: default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. Lyophilized powder form: the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution	Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Storage	1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Notes	Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Target Details

Target Function	Cytokine that binds to TNFRSF1A/TNFR1 and TNFRSF1B/TNFBR. It is mainly secreted by macrophages and can induce cell death of certain tumor cell lines. It is potent pyrogen causing fever by direct action or by stimulation of interleukin-1 secretion and is implicated in the induction of cachexia, Under certain conditions it can stimulate cell proliferation and induce cell differentiation. Induces insulin resistance in adipocytes via inhibition of insulin-induced IRS1 tyrosine phosphorylation and insulin-induced glucose uptake. Induces GKAP42 protein degradation in adipocytes which is partially responsible for TNF-induced insulin resistance. Plays a role in angiogenesis by inducing VEGF production synergistically with IL1B and IL6.; The TNF intracellular domain (ICD) form induces IL12 production in dendritic cells.
Subcellular Location	Cell membrane; Single-pass type II membrane protein.; [Tumor necrosis factor, membrane form]: Membrane; Single-pass type II membrane protein.; [Tumor necrosis factor, soluble form]: Secreted.; [C-domain 1]: Secreted.; [C-domain 2]: Secreted.
Protein Families	Tumor necrosis factor family
Database References	KEGG: oas:443540 UniGene: Oar.455

Gene Functions References

The aim of the study was to assess the prognostic significance of Tumor Necrosis Factor-alpha, Interleukin-12(p40), Interleukin-6 and Interleukin 10 levels in cerebrospinal fluid (CSF) in sheep with encephalitic listeriosis. PMID: 25817420
The p38 MAPK inhibitor decreased (P < 0.01) gene expression of TNFa but its effect was not observed at the level of TNFa protein synthesis PMID: 24995301
TNF-alpha gene expression in multifidus was greater on both sides in the disc lesion animals than in the muscle of control animals. PMID: 24718080
Injection of peptidoglycan-polysaccharide resulted in fever, increased concentrations of TNF-alpha on the day of and the day after challenge, and decreased concentrations of progesterone on days 14 and 21. PMID: 20603027
These data are consistent with the effects of LPS on GH secretion originating through peripheral cytokine presentation to the pituitary, as well as a potential to act directly on selective populations of pituitary cells via CD14. PMID: 15899940
plasma IL-1 beta, TNF-alpha and MCP-1 may potentially serve as markers to monitor prognosis of pregnancy toxaemia in ewes PMID: 17221363

FAQs

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.