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SRP4596

Sigma-Aldrich

IFN-alpha 1 human

recombinant, expressed in E. coli, ≥95% (SDS-PAGE), ≥95% (HPLC)

Synonym(s):

IFN-α 1, IFNA1, Interferon-α

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About This Item

MDL number:
UNSPSC Code:
12352202
NACRES:
NA.32

biological source

human

recombinant

expressed in E. coli

Assay

≥95% (HPLC)
≥95% (SDS-PAGE)

form

lyophilized

potency

1x10^8 units/mg

mol wt

~19.3 kDa

packaging

pkg of 100 μg

storage condition

avoid repeated freeze/thaw cycles

impurities

endotoxin, tested

NCBI accession no.

UniProt accession no.

shipped in

wet ice

storage temp.

−20°C

Gene Information

human ... IFNA1(3439)

General description

IFN-α1 (interferon α 1) is a type 1 interferon. Human IFN-a1 is a 19.3kDa protein containing 166 amino acid residues. IFN-α1 belongs to the type I interferon (IFN) family and is present in leukocytes. The IFN-α1 gene is mapped to human chromosome 9p21.3.

Application

IFN-alpha 1 human has been used:
  • to treat Vero and breast cancer (MDA-MB-231) cells in interferon assay before viral infection
  • as a ligand to vaccinia virus B18R protein in analytical size exclusion chromatography
  • to treat chikungunya infected human embryonic kidney cell line (HEK293T) to test its effect on Signal transducer and activator of transcription 1 (STAT1) phosphorylation
  • as recombinant interferon to treat lung fibroblast cell line (IMR90) to monitor histone chaperone (HIRA) response

Biochem/physiol Actions

IFN-α1 (interferon α 1) is a lymphoid factor that possesses potent anti-viral activity. IFN-α1 interacts with IFNAR1 (interferon α receptor 1) and IFNAR2. The interaction activates JAK1 (janus-activated kinase 1) and tyrosine kinase 2. These events phosphorylate and activate STAT1 and STAT2 (signal transducer and activator of transcription proteins), leading to the upregulation of interferon-stimulated genes some of which encode antiviral proteins. IFN-alpha 1 (IFN-α1) mediates apoptosis in specific tissues. It may be useful in treating laryngeal carcinoma. The interaction of microRNA, miR-181b with IFN-α1, is regarded as a risk factor in systemic lupus erythematosus.

Physical form

Lyophilized without any additives.

Reconstitution

Centrifuge the vial prior to opening. Avoid freeze-thaw cycles.
Reconstitute in water to a concentration of 0.1-1 mg/mL. This solution can then be diluted into other aqueous buffers.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Purification and characterization of multiple components of human lymphoblastoid interferon-alpha.
Zoon KC, et al.
The Journal of Biological Chemistry, 267, 15210-15216 (1992)
Rajani Rajbhandari et al.
Oncotarget, 6(19), 17805-17816 (2015-07-15)
Glioblastomas (GBMs) are deadly tumors of the central nervous system. Most GBM exhibit homozygous deletions of the CDKN2A and CDKN2B tumor suppressors at 9p21.3, although loss of CDKN2A/B alone is insufficient to drive gliomagenesis. MIR31HG, which encodes microRNA-31 (miR-31), is
Yong-Ling He et al.
BioMed research international, 2020, 4757065-4757065 (2020-05-10)
A previous work has discovered that chromosome 1q32 locus linked to the risk of systemic lupus erythematosus (SLE) and miR-181b located on the susceptibility site with downregulation inversely correlating to its target molecular interferon alpha 1 (IFNA1). The purpose of
Marina Juraleviciute et al.
Cancer medicine, 10(8), 2840-2854 (2021-03-19)
MX2 is an interferon inducible gene that is mostly known for its antiviral activity. We have previously demonstrated that MX2 is also associated with the tumorigenesis process in melanoma. However, it remains unknown which molecular mechanisms are regulated by MX2
K Oritani et al.
Cytokine & growth factor reviews, 12(4), 337-348 (2001-09-07)
The type I interferon (IFN) family includes IFN-alpha, IFN-beta, IFN-pi, and IFN-tau. These molecules are clustered according to sequence homologies, use of the same cell surface receptor, and similar functions. IFN-alpha and IFN-beta have a globular structure composed of five

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