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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.

Storage Class Code

11 - Combustible Solids

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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Xiao-Lei Xin et al.
Medical science monitor : international medical journal of experimental and clinical research, 25, 7100-7114 (2019-09-23)
BACKGROUND Interferon alpha (IFNalpha) exerts its anti-proliferative effect on many human cancers. Among the 13 subtypes of human IFNalpha, IFNalpha-1 subtype has 2 variants, named IFNalpha-1a and IFNalpha-1b, that differ from each other in only 1 amino acid, at residue
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
Yuriy G Kim et al.
PloS one, 12(12), e0189308-e0189308 (2017-12-08)
B18R protein of Vaccinia virus binds to type I interferons and inhibits activation of interferon-mediated signal transduction. Cells which have unimpaired interferon signaling such as primary cell cultures or some industrially important cell lines are capable of development of an
Xing Liu et al.
Journal of virology, 93(2) (2018-11-09)
Oncolytic herpes simplex virus 1 (HSV-1), devoid of the γ134.5 gene, exerts antitumor activities. However, the oncolytic effects differ, ranging from pronounced to little responses. Although viral and host factors are involved, much remains to be deciphered. Here we report

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