Proto-oncogene PIM1 (191-199)

Proto-oncogene PIM1 (191-199) is a synthetic peptide fragment corresponding to amino acid residues 191 through 199 of the human PIM1 protein, a serine/threonine kinase implicated in diverse cellular processes such as proliferation, survival, and signal transduction. As a segment derived from a well-characterized proto-oncogene, this peptide serves as a valuable molecular tool for dissecting the structure-function relationships within the PIM1 protein and for exploring its roles in various signaling pathways. Its defined sequence and biochemical properties make it suitable for a range of experimental applications in molecular biology, biochemistry, and cell signaling research.

Peptide mapping: The peptide is widely used in peptide mapping studies to facilitate the identification and characterization of PIM1 protein domains. By serving as a reference standard or as a probe in mass spectrometry-based proteomic workflows, it enables researchers to verify sequence coverage, confirm post-translational modifications, and differentiate isoforms or processed fragments of the full-length kinase. This application supports the detailed analysis of PIM1's structural features and functional motifs.

Antibody epitope mapping: In immunological research, the 191-199 peptide fragment is employed to map and validate antibody binding sites on the PIM1 kinase. It can be used as a synthetic antigen for screening monoclonal or polyclonal antibodies, allowing investigators to determine epitope specificity, assess cross-reactivity, and optimize antibody development for detection or enrichment of PIM1 in biological samples. Such studies are critical for advancing the quality and precision of immunoassays targeting this kinase.

Kinase-substrate interaction studies: The peptide provides a defined substrate or binding motif for in vitro assays investigating the interaction dynamics between PIM1 and its substrates or regulatory partners. By incorporating this sequence into biochemical assays, researchers can elucidate substrate recognition, phosphorylation efficiency, or competitive inhibition, thereby gaining insight into the enzymatic mechanisms governing PIM1's activity and its role in signal transduction networks.

Cell signaling research: As a functional fragment of a key signaling kinase, the 191-199 peptide is leveraged in cell-based assays to interrogate downstream effects of PIM1 modulation. It may be used to mimic, block, or compete with endogenous sequences, aiding in the dissection of signaling cascades, feedback loops, or protein-protein interactions involving PIM1. This approach is instrumental for clarifying the molecular basis of cellular responses regulated by this proto-oncogene.

Peptide-based assay development: The defined nature of the 191-199 sequence supports its use in the development and optimization of quantitative or qualitative assays, such as ELISA, western blotting, or fluorescence-based detection systems. By serving as a calibration standard, positive control, or assay component, it allows for the reliable measurement of PIM1 activity, expression, or modification state in diverse biological samples. These applications facilitate robust experimental workflows in both basic and applied research settings.

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