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SDS-Page (Fig.SDS-PAGE analysis of Human TNF-beta protein.)

TNF-beta active protein

Human TNF-beta Protein

Gene Names
LTA; LT; TNFB; TNFSF1; TNLG1E
Purity
>97% as determined by SDS-PAGE
Synonyms
TNF-beta; Human TNF-beta Protein; Recombinant Human TNF-beta Protein (Lymphotoxin-alpha) expressed in E. coli; LT; TNFB; TNFSF1; Lymphotoxin-alpha; LTA; TNF-beta active protein
Ordering
For Research Use Only!
Host
E Coli
Purity/Purification
>97% as determined by SDS-PAGE
Form/Format
Lyophilized from sterile 50mM Tris, pH 8.0
Sequence
Amino acid sequence derived from mature form of human TNFbeta (P01374) (Leu 35-Leu 205) was expressed and purified, with an initial Met at the N-terminus.
Sequence Length
66
Species
Human
Protein Length
The recombinant human TNFbeta comprises 172 amino acids and predicts a molecular mass of 18.8 kDa as estimated in SDS-PAGE under reducing conditions.
Activity
Measured in a cytotoxicity assay using L929 mouse fibrosarcoma cells in the presence of the metabolic inhibitor actinomycin D. The ED50 for this effect is typically 0.01-0.1 ng/ml.
Usage Notes
Always centrifuge tubes before opening. It is recommended to reconstitute the lyophilized Human TNF-beta protein in sterile ddH2O not less than 100ug/ml, which can then be further diluted to other aqueous solutions.
Preparation and Storage
Item should be stored desiccated below -20 degree C. Upon reconstitution, the protein should be stored at 4 degree C between 2-7 days and for future use below -20 degree C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.

SDS-Page

(Fig.SDS-PAGE analysis of Human TNF-beta protein.)

SDS-Page (Fig.SDS-PAGE analysis of Human TNF-beta protein.)
Related Product Information for TNF-beta active protein
Lymphotoxin-alpha, also known as LT-alpha, TNF-beta, Tumor necrosis factor ligand superfamily member 1, LTA TNFSF1 and TNFB, is a secreted protein which belongs to the tumor necrosis factor family. TNF-beta/TNFSF1/Lymphotoxin alpha is a highly inducible, secreted, and exists as homotrimeric molecule. It is a cytokine that in its homotrimeric form binds to TNFRSF1A/ TNFR1, TNFRSF1B/ TNFBR and TNFRSF14/ HVEM. In its heterotrimeric form with LTB, TNF-beta/TNFSF1/Lymphotoxin alpha binds to TNFRSF3/ LTBR. Lymphotoxin is produced by lymphocytes and cytotoxic for a wide range of tumor cells. TNF-beta/TNFSF1/Lymphotoxin alpha forms heterotrimers with lymphotoxin-beta which anchors lymphotoxin-alpha to the cell surface. It mediates a large variety of inflammatory, immunostimulatory, and antiviral responses. TNF-beta/TNFSF1/Lymphotoxin alpha is also involved in the formation of secondary lymphoid organs during development and plays a role in apoptosis. Genetic variations in TNF-beta/TNFSF1/Lymphotoxin alpha are a cause of susceptibility psoriatic arthritis which is an inflammatory, seronegative arthritis associated with psoriasis. It is a heterogeneous disorder ranging from a mild, non-destructive disease to a severe, progressive, erosive arthropathy.

NCBI and Uniprot Product Information

NCBI GI #
NCBI GeneID
UniProt Accession #
Molecular Weight
18.8 kDa
NCBI Official Full Name
lymphotoxin alpha, partial
NCBI Official Synonym Full Names
lymphotoxin alpha
NCBI Official Symbol
LTA
NCBI Official Synonym Symbols
LT; TNFB; TNFSF1; TNLG1E
NCBI Protein Information
lymphotoxin-alpha
UniProt Protein Name
Lymphotoxin-alpha
UniProt Gene Name
LTA
UniProt Synonym Gene Names
TNFB; TNFSF1; LT-alpha
UniProt Entry Name
TNFB_HUMAN

NCBI Description

The encoded protein, a member of the tumor necrosis factor family, is a cytokine produced by lymphocytes. The protein is highly inducible, secreted, and forms heterotrimers with lymphotoxin-beta which anchor lymphotoxin-alpha to the cell surface. This protein also mediates a large variety of inflammatory, immunostimulatory, and antiviral responses, is involved in the formation of secondary lymphoid organs during development and plays a role in apoptosis. Genetic variations in this gene are associated with susceptibility to leprosy type 4, myocardial infarction, non-Hodgkin's lymphoma, and psoriatic arthritis. Alternatively spliced transcript variants have been observed for this gene. [provided by RefSeq, Jul 2012]

Uniprot Description

LTA: Cytokine that in its homotrimeric form binds to TNFRSF1A/TNFR1, TNFRSF1B/TNFBR and TNFRSF14/HVEM. In its heterotrimeric form with LTB binds to TNFRSF3/LTBR. Lymphotoxin is produced by lymphocytes and cytotoxic for a wide range of tumor cells in vitro and in vivo. Genetic variations in LTA are a cause of susceptibility psoriatic arthritis (PSORAS). PSORAS is an inflammatory, seronegative arthritis associated with psoriasis. It is a heterogeneous disorder ranging from a mild, non-destructive disease to a severe, progressive, erosive arthropathy. Five types of psoriatic arthritis have been defined: asymmetrical oligoarthritis characterized by primary involvement of the small joints of the fingers or toes; asymmetrical arthritis which involves the joints of the extremities; symmetrical polyarthritis characterized by a rheumatoidlike pattern that can involve hands, wrists, ankles, and feet; arthritis mutilans, which is a rare but deforming and destructive condition; arthritis of the sacroiliac joints and spine (psoriatic spondylitis). Belongs to the tumor necrosis factor family.

Protein type: Secreted; Cytokine; Apoptosis; Secreted, signal peptide

Chromosomal Location of Human Ortholog: 6p21.3

Cellular Component: extracellular space; membrane

Molecular Function: cytokine activity; tumor necrosis factor receptor binding; receptor binding

Biological Process: response to drug; positive regulation of humoral immune response mediated by circulating immunoglobulin; apoptosis; positive regulation of apoptosis; response to lipopolysaccharide; signal transduction; lymph node development; humoral immune response; defense response to Gram-positive bacterium; positive regulation of interferon-gamma production; cell-cell signaling; negative regulation of fibroblast proliferation; response to hypoxia; positive regulation of chronic inflammatory response to antigenic stimulus; response to nutrient

Disease: Psoriatic Arthritis, Susceptibility To; Myocardial Infarction, Susceptibility To; Leprosy, Susceptibility To, 4

Research Articles on TNF-beta

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Product Notes

The TNF-beta lta (Catalog #AAA9718672) is an Active Protein produced from E Coli and is intended for research purposes only. The product is available for immediate purchase. The amino acid sequence is listed below: Amino acid sequence derived from mature form of human TNFbeta (P01374) (Leu 35-Leu 205) was expressed and purified, with an initial Met at the N-terminus. It is sometimes possible for the material contained within the vial of "TNF-beta, Active Protein" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.

Precautions

All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.

Disclaimer

Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.

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