Invitrogen™ IFN alpha Polyclonal Antibody

Catalog No.	Quantity
PI321001	2x10^4 units

Catalog No. PI321001 Supplier Invitrogen™ Supplier No. 321001

Description

Rabbit Polyclonal Antibody

Specificity: Neutralizes mouse interferon alpha. Activity: Interferon was titrated with the use of the cytopathic effect inhibition assay using L929 cells, where 5 unit/mL of interferon was necessary to produce an endpoint of 50%. One neutralization unit is defined as the amount of serum required to neutralize one unit of mouse IFN alpha to an endpoint of 50%. Store at -20°C for short-term use (less than 6 months). For long-term storage, aliquot and store at -70°C or below for retention of full activity. Refreezing should be done on dry ice or in a dry ice/alcohol bath. Further dilution of the product should be in buffers containing protein such as 0.1% BSA. Packaged by and distributed for PBL Assay Science.

IFN alpha (Interferon alpha) is a Type I interferon belonging to a family of structurally related, species-specific proteins exclusive to vertebrates. The interaction of IFN-alpha with its receptor component result in the activation of a number of signaling pathways which are mainly involved in innate immune response against viral infection. In humans, the gene for IFN alpha is located on on chromosome 9. The type I interferons consist of 14 different alpha isoforms (subtypes with slightly different specificities), and single beta, omega, epsilon and kappa isoforms. Homologous molecules are found in many species, including rats and mice (and most mammals), and have been identified in birds, reptiles and fish species. IFN alpha is produced primarily by plasmacytoid dendritic cells, is a potent component of the anti-viral innate immune response and modulates adaptive immunity. Diseases associated with the dysfunction of IFN alpha include Hepatitis C and Hepatitis.

Specifications

• Antigen: IFN alpha
• Applications: Neutralization
• Classification: Polyclonal
• Concentration: Conc. Not Determined
• Conjugate: Unconjugated
• Formulation: Whole serum, PBS with no preservative
• Gene: IFNA1
• Gene Accession No.: P01572, P01573
• Gene Alias: alpha-2a interferon; Gm12597; ifa; Ifa1; Ifa2; IFL; IFN; IFN alpha; IFN alpha 1/13; IFN alpha 1b; IFN α; IFN1@; IFNA; IFNA@; IFNA1; IFNA13; Ifna15; Ifna2; IFNA2A; IFNA2B; IFNA2C; IFNA3; IFNA6; Ifnaa; IFNAalphaIFN-alpha-1/13; IFNalpha; IFN-alpha; IFN-alpha 1b; IFN-alpha1; IFN-alpha-1; IFN-alpha-1/13; IFN-alpha-2; IFN-alpha-6; IFN-alphaA; IFN-alphaD; IFN-gamma; IFNα; INFA2; interferon; interferon alpha; interferon alpha 1; Interferon alpha 13 (IFNA13); interferon alpha 15; interferon alpha 1b; interferon alpha 2; interferon alpha 2a; interferon alpha 2b; interferon alpha A; interferon alpha family gene 1; interferon alpha family, gene 2; Interferon alpha leukocyte (IFL); interferon alpha protein; interferon alpha-1; Interferon alpha1 (IFNA1); interferon alpha-1 precursor; interferon alpha-1/13; Interferon alpha-1/13 (IFN-alpha-1/13); Interferon alpha-2; Interferon alpha-A; Interferon alpha-D; Interferon alpha-D (IFN alphaD); interferon type A1/A2; interferon type A3; interferon, alpha 1; interferon, alpha 2; interferon-alpha; interferon-alpha 1; interferon-alpha1; interferon-alpha-6; leIF A; LeIF D; MGC138207; MGC138505; MGC138507; MuIFN-alpha-A; novel interferon alpha (Ifna) family member; OTTMUSG00000007655
• Gene Symbols: IFNA, IFNA1, Ifna15, IFNA2
• Host Species: Rabbit
• Immunogen: Recombinant mouse interferon alpha.
• Quantity: 2x10^4 units
• Regulatory Status: RUO
• Primary or Secondary: Primary
• Gene ID (Entrez): 111654, 15962, 15965, 242517
• Target Species: Mouse
• Content And Storage: -20°C, Avoid Freeze/Thaw Cycles
• Product Type: Antibody
• Form: Liquid
• Isotype: IgG

Frequently Asked Questions (FAQs)

The antibody I purchased from you says ''concentration not determined'' on the product label and on the product page. How do I determine the concentration?

Some antibodies are provided in non-purified formats, such as ascites fluid, tissue culture supernatant, or whole serum. These formats contain multiple proteins, which can interfere with accurate protein quantification. Traditional methods like A280 measurement or protein assays such as BCA quantify total protein but do not provide a specific concentration for the antibody in question.

Literature, such as "Antibodies" by Harlow & Lane (1988) (https://antibodiesmanual.org/index.php) (Table 8.2 - Storing and Purifying Antibodies), suggests approximate concentrations of antibodies in these solutions, as shown below. However, please note that these are rough estimates, and actual concentrations can vary based on several factors.

Serum
Total antibody concentration: 10 mg/mL
Specific antibody concentration: 0.1 to 1 mg/mL (a maximum of 10% of the antibody population is expected to be the specific antibody of interest)

Tissue Culture Supernatant (10% FBS)
Total antibody concentration: 1 mg/mL
Specific antibody concentration: 0.05 mg/mL

Tissue Culture Supernatant (serum-free)
Total antibody concentration: 0.01 to 0.05 mg/mL
Specific antibody concentration: 0.01 to 0.05 mg/mL

Ascites
Total antibody concentration: 1 to 10 mg/mL
Specific antibody concentration: 0.9 to 9 mg/mL

Safety and Handling

WARNING: Cancer - www.P65Warnings.ca.gov