IL23 (p19+p40) Human Recombinant Protein

CAT#: TP723732

Purified recombinant protein of Human interleukin 23 (p19+p40).

Specifications

Product Data

• Species: Human
• Expression Host: Sf9
• Expression cDNA Clone or AA Sequence:
  Protein Sequence

  Human IL-23 consists of two subunits linked via a disulfide bond: P19, the region of Ala21- Pro189) from Accession# NP_057668, and P40, the region of Ile 23-Ser 328) from Accession# NP_002178.2
• Tag: Tag Free
• Predicted MW: 53.3 kDa
• Concentration: Protein formulated and vialed at >50 ug/mL in specified buffer
• Purity: >95%, as determined by Coomassie stained SDS-PAGE.
• Buffer: 1 x PBS
• Bioactivity: The ED50 is 0.2 - 0.8 ng/ml, corresponding to a specific activity of 5 - 1.25 x 10^6 units/mg determined by mouse splenocyte IL-17A secretion, which is induced by hIL-23 in a dose dependent manner.
• Endotoxin: Less than 0.01 ng per µg protein as determined by the LAL method
• Storage: Store at -80°C.
• Stability: Unopened vial can be stored between 2°C and 8°C for up to 2 weeks, at -20°C for up to 6 months, or at -70°C or below until the expiration date. Aliquots can be stored between 2°C and 8°C for up to one week and stored at -20°C or colder for up to 3 months. Avoid repeated freeze/thaw cycles.

Reference Data

• RefSeq: NP_057668
• Locus ID: 51561
• UniProt ID: Q9NPF7
• Cytogenetics: 12q13.3
• Refseq Size: 1049
• Refseq ORF: 567
• Synonyms: IL-23; IL-23A; IL23P19; P19; SGRF
• Summary: This gene encodes a subunit of the heterodimeric cytokine interleukin 23 (IL23). IL23 is composed of this protein and the p40 subunit of interleukin 12 (IL12B). The receptor of IL23 is formed by the beta 1 subunit of IL12 (IL12RB1) and an IL23 specific subunit, IL23R. Both IL23 and IL12 can activate the transcription activator STAT4, and stimulate the production of interferon-gamma (IFNG). In contrast to IL12, which acts mainly on naive CD4(+) T cells, IL23 preferentially acts on memory CD4(+) T cells. [provided by RefSeq, Jul 2008]
• Protein Families: Druggable Genome, Secreted Protein
• Protein Pathways: Cytokine-cytokine receptor interaction, Jak-STAT signaling pathway