Nucleolysin TIAR (TIAL1)

TIA1 cytotoxic granule-associated RNA binding protein-like 1 (canonical abbreviation: TIAL1) is an RNA-binding protein involved in multiple aspects of post-transcriptional regulation, apoptosis, and immune responses[2][3][5][7]. Nucleolysin TIAR (TIAL1) is a member of a family of RNA-binding proteins notable for its nucleolytic activity and its capacity to bind adenine/uridine-rich elements in mRNA and pre-mRNAs of various genes[3][5][7]. It contains three RNA recognition motifs. TIAL1 regulates mRNA splicing, translational control, and apoptosis, and is predominantly localized to cytotoxic T cell granules. Under stress, it forms stress granules and participates in the translational stress response, sequestering mRNAs to prioritize stress-related protein synthesis[1][2]. TIAL1 is critical for proper differentiation and function of B and T lymphocytes, and plays roles in disease processes including cancer and neurodegenerative conditions. While not a direct drug target, disruption of TIAL1 is associated with severe cellular dysfunction and embryonic lethality in knockout models[2]. Key Notes: TIAL1 is closely related to TIA1 (which has a similar function and disease involvement)[1][2]. It is primarily regarded as a regulatory RNA-binding protein, not as a classic therapeutic "target" such as a receptor or enzyme. Functions in immunity, apoptosis, and RNA metabolism are well-established[1][2][3][5][7].

Other names

TIAL1Nucleolysin TIARTIARTIA-1-related proteinTIA1 relatedTCBPTIA-1-related nucleolysinT-cluster binding proteinAging-associated gene 7 protein

Not applicable (no approved drugs directly targeting TIAL1)