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IL16

The protein encoded by this gene is a pleiotropic cytokine that functions as a chemoattractant, a modulator of T cell activation, and an inhibitor of HIV replication. The signaling process of this cytokine is mediated by CD4. The product of this gene undergoes proteolytic processing, which is found to yield two functional proteins. The cytokine function is exclusively attributed to the secreted C-terminal peptide, while the N-terminal product may play a role in cell cycle control. Caspase 3 is reported to be involved in the proteolytic processing of this protein. Alternate splicing results in multiple transcript variants.
Protein class

Cancer-related genes, Human disease related genes, Plasma proteins

Predicted location

Intracellular, Secreted (different isoforms)

Single cell type specificity

Cell type enhanced (B-cells, NK-cells, Langerhans cells, dendritic cells, T-cells, Kupffer cells, Plasma cells)

Immune cell specificity

Low immune cell specificity

Cell line specificity

Cell line enhanced (Daudi, HEL, HMC-1, RPMI-8226, U-266/70, U-698, U-937)

Interaction

Homotetramer (Probable). According to PubMed:9699630, the formation of a homotetrameric protein complex is not required for the chemo-attractant function. Isoform 3 interacts (via PDZ 3 domain) with PPP1R12A, PPP1R12B and PPP1R12C. Isoform 1 interacts with PPP1R12B. Isoform 3 interacts with GRIN2A. Isoform 3 interacts with GABPB1. Isoform 3 interacts (via PDZ 3 domain) with HDAC3. Isoform 1 interacts with GRIN2D, KCNJ10, KCNJ15 and CACNA1C (By similarity). (Microbial infection) Isoform 3 interacts with HTLV-1 tax.

Molecular function

Cytokine

More Types Infomation

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