NUAK family SNF1-like kinase 2 (446-455)

NUAK family SNF1-like kinase 2 (446-455) is a synthetic peptide fragment corresponding to amino acid residues 446 through 455 of the human NUAK2 protein, a member of the AMP-activated protein kinase (AMPK)-related kinase family. As a peptide derived from a functionally significant region of NUAK2, it serves as a valuable molecular tool for researchers investigating the regulatory mechanisms of cellular metabolism, stress response pathways, and kinase-mediated signaling networks. The sequence encapsulates a region implicated in protein-protein interactions and post-translational modifications, making it a relevant probe for dissecting the functional domains of the NUAK2 enzyme in vitro and in cell-based systems.

Peptide mapping and epitope characterization: The synthetic fragment representing residues 446-455 of NUAK2 is well-suited for use in peptide mapping studies aimed at identifying functional motifs and interaction interfaces within the kinase. By serving as an epitope for antibody generation or as a standard in mass spectrometry-based mapping, the peptide enables precise localization of binding sites and post-translational modifications. This supports the development of highly specific antibodies or detection reagents, facilitating the detailed study of NUAK2 structure and its regulatory mechanisms.

Kinase substrate specificity assays: As a defined segment of NUAK2, the peptide can be employed in substrate specificity assays to investigate the phosphorylation preferences of upstream kinases or to test the activity of NUAK2 itself. By incorporating the peptide into in vitro kinase assays, researchers can monitor phosphorylation events, elucidate consensus sequence requirements, and better understand the regulatory networks controlling NUAK2 activity. Such studies are instrumental in dissecting the molecular determinants of kinase-substrate recognition.

Protein-protein interaction studies: The 446-455 peptide fragment provides a focused tool for mapping interaction domains between NUAK2 and its binding partners. Through techniques such as peptide pull-down assays, surface plasmon resonance, or co-immunoprecipitation, the fragment can be used to identify and characterize proteins that interact with this region of NUAK2. These insights contribute to a more comprehensive understanding of how NUAK2 integrates into broader signaling complexes and cellular pathways.

Phosphorylation site analysis: The defined sequence of the peptide allows for targeted analysis of phosphorylation sites within the C-terminal region of NUAK2. By serving as a substrate in phospho-proteomic workflows, it can be used to validate the presence and functional consequences of specific phosphorylation events. This application aids in delineating the regulatory logic of NUAK2 activation and its downstream signaling effects, supporting the identification of novel regulatory checkpoints.

Assay development and method validation: The synthetic peptide is a practical reference standard or positive control in the development and validation of analytical assays targeting NUAK2. Whether used in ELISA formats, Western blotting, or mass spectrometry-based quantification, the fragment helps establish assay sensitivity, specificity, and reproducibility. Its defined sequence and biochemical properties make it an indispensable component for laboratories seeking to optimize detection and quantification methodologies for NUAK2-related research.

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