Interleukin 23 subunit α (IL23A) gene with 4 exons, spanning 1531bp of genomic DNA, is mapped to human chromosome 12q13.2. The gene codes for a 19kDa cytokine, p19. The protein consists of a signal peptide and mature peptide composed of four α helices.
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 β1 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-γ(IFNG). In contrast to IL12, which acts mainly on naive CD4+ T cells, IL23 preferentially acts on memory CD4+ T cells. (provided by RefSeq)
Immunogen
IL23A (NP_057668.1, 1 a.a. ~ 189 a.a) full-length human protein.
Interleukin 23 subunit α (IL23A) plays a vital role downstream of the Janus kinase/signal transducers and activators of transcription (JAK/STAT) pathway, that transduces signals for cell proliferation, differentiation, cell migration and apoptosis. Elevated expression of IL23A has been observed in meibomian cell carcinoma (MCC). Mutation in the gene increases the risk of susceptibility to psoriatic arthritis (PsA) as well as psoriasis.
Annals of the rheumatic diseases, 70(9), 1641-1644 (2011-05-31)
To investigate a shared genetic aetiology for skin involvement in psoriasis and psoriatic arthritis (PsA) by genotyping single-nucleotide polymorphisms (SNPs), reported to be associated in genome-wide association studies of psoriasis, in patients with PsA. SNPs with reported evidence for association
IL23A (interleukin 23, alpha subunit p19)
Norimitsu Inoue
Atlas of Genetics and Cytogenetics in Oncology and Haematology, 1-4 (2010)
Meibomian cell carcinoma (MCC) is a malignant tumor of the meibomian glands located in the eyelids. No information exists on the cytogenetic and genetic aspects of MCC. There is no report on the gene expression profile of MCC. Thus there
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