Recombinant human MNK1 protein

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

Mitogen-activated protein kinase-interacting serine/threonine-protein kinase 1 (MNK1) also known as MAP kinase-interacting kinase 1 is an enzyme with a molecular weight of approximately 51 kDa. MNK1 plays an important role in the regulation of protein synthesis by phosphorylating eukaryotic initiation factor 4E (eIF4E). Researchers find high expression of MNK1 in many tissues especially within the brain and immune system which suggests its involvement in diverse cellular processes.

Biological function summary

The protein kinase MNK1 regulates the translation of mRNA by forming part of the signaling complex that includes eIF4E. This complex plays a role in stress response cell growth and the immune response. Protein synthesis regulated by MNK1 affects cellular activities by selectively translating specific mRNAs related to those processes. MNK1's specific regulation often depends on signals received through upstream kinases.

Pathways

MNK1 is a part of the mitogen-activated protein kinase (MAPK) signaling cascade particularly the extracellular signal-regulated kinase (ERK) and p38 MAPK pathways. These pathways find involvement in transmitting signals from the cell membrane to the nucleus affecting gene expression and cellular responses. MNK1 modulates its activity in response to signals from upstream proteins such as ERK1/2 or p38α/β which are likely to influence the regulation of eIF4E and therefore translation initiation.

Scientists observe MNK1 implications in cancer progression and neurodegenerative diseases. MNK1-mediated phosphorylation of proteins like eIF4E and its overactivation often correlates with tumor growth and resistance to chemotherapy. Additionally research links MNK1's altered activity to neurodegenerative conditions such as Alzheimer's disease. Interactions between MNK1 and other proteins like eIF4E suggest potential roles for MNK1 in these disease pathologies making it an attractive target for therapeutic interventions.