Semax acetate (free base) is a regulatory peptide enriched in acidic, basic, and aromatic residues arranged to support flexible structural transitions. Researchers use it to investigate helix-coil behavior, ligand-recognition motifs, and charge-mediated interactions. Its acetate form enhances handling while maintaining conformational versatility.
CAT No: R2209
CAS No:2828433-33-4
Synonyms/Alias:SEMAX ACETATE;2828433-33-4;Semax acetate(80714-61-0 free base);AKOS040744796;DA-77789;TS-08141;acetic acid;(2S)-1-[2-[[(2S)-1-[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-amino-4-methylsulfanylbutanoyl]amino]-4-carboxybutanoyl]amino]-3-(1H-imidazol-5-yl)propanoyl]amino]-3-phenylpropanoyl]pyrrolidine-2-carbonyl]amino]acetyl]pyrrolidine-2-carboxylic acid;
Semax acetate (free base) is a synthetic peptide derived from the adrenocorticotropic hormone (ACTH) fragment, specifically designed for research applications in neurobiology and biochemistry. As a heptapeptide, it is notable for its stability and resistance to enzymatic degradation, making it a valuable tool for investigating peptide function in neural and biochemical systems. Semax and its derivatives have attracted considerable attention for their ability to modulate neurotrophic processes, influence neurotransmitter systems, and serve as models for peptide-based regulatory mechanisms. Its unique structure and functional properties enable researchers to explore diverse aspects of peptide signaling, neuroprotection, and molecular interactions in vitro and in vivo experimental settings.
Neuropharmacological research: In the context of neuropharmacology, Semax acetate is frequently utilized to study the modulation of neurotransmitter systems, including dopaminergic, serotonergic, and glutamatergic pathways. Its structural similarity to endogenous regulatory peptides allows for the investigation of synaptic plasticity, neurochemical release, and receptor-level interactions. Researchers employ this compound to elucidate the molecular underpinnings of cognitive processes, stress responses, and adaptive neuroplasticity, thereby advancing understanding of central nervous system function and peptide-mediated signaling.
Peptide mechanism studies: The heptapeptide sequence of Semax acetate offers an excellent model for probing peptide-receptor binding dynamics and downstream signaling cascades. Its resistance to rapid enzymatic breakdown permits extended observation in biological assays, facilitating the characterization of peptide stability, receptor affinity, and intracellular signaling events. Such studies contribute to the broader field of peptide pharmacodynamics, informing the development of novel peptide analogs and enhancing the mechanistic understanding of peptide-mimetic agents.
Neurotrophic factor modulation: Semax and related peptides are employed in research examining the regulation of neurotrophic factors such as brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF). Experimental use of this compound enables the assessment of peptide-induced changes in gene expression, protein synthesis, and cellular differentiation within neuronal cultures. By modulating neurotrophic signaling, it serves as a valuable probe for dissecting the molecular pathways involved in neuronal survival, growth, and synaptic maintenance under various experimental conditions.
Oxidative stress and neuroprotection studies: The unique properties of Semax acetate facilitate its use in models of oxidative stress and neurodegeneration. Researchers utilize the peptide to investigate mechanisms of cellular protection, antioxidant responses, and the mitigation of reactive oxygen species in neural tissues. Such applications are critical for understanding the molecular basis of neuroprotection, cellular resilience, and the role of regulatory peptides in maintaining neural homeostasis during experimental insults or environmental challenges.
Peptide synthesis and analytical validation: Beyond its functional applications, Semax acetate serves as a reference standard and tool in peptide synthesis and analytical method development. Its defined sequence and physicochemical characteristics make it suitable for validating chromatographic techniques, optimizing peptide purification protocols, and calibrating mass spectrometry assays. These applications are essential for ensuring the reliability and reproducibility of peptide-based research, supporting both fundamental investigations and the development of advanced analytical methodologies.
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