Moth Cytochrome C (MCC) 88-103

Moth Cytochrome C (MCC) 88-103 is a synthetic peptide fragment derived from the cytochrome c protein of moth species, corresponding specifically to amino acid residues 88 through 103. As a segment of a highly conserved mitochondrial electron transport protein, this peptide encompasses a region critical for protein-protein interactions, redox signaling, and immunological recognition. Its unique sequence and structural features make it a valuable molecular tool in studies of peptide-protein interactions, epitope mapping, and the investigation of mitochondrial function in both invertebrate and comparative systems. Researchers leverage this peptide to dissect the structural and functional nuances of cytochrome c, providing insights into evolutionary biology, mitochondrial dynamics, and the molecular basis of immune recognition.

Epitope Mapping: The MCC 88-103 peptide is widely employed in immunological studies to identify and characterize T cell epitopes. Its defined sequence allows researchers to probe T cell receptor specificity, facilitating the mapping of antigenic determinants recognized by major histocompatibility complex (MHC) molecules in various model systems. Such studies are essential for understanding the molecular basis of immune recognition, tolerance, and cross-reactivity, particularly in the context of insect or comparative immunology.

Peptide-Protein Interaction Studies: By serving as a defined ligand, this peptide enables detailed investigations into the binding affinities and structural requirements for cytochrome c interactions with other mitochondrial or cytosolic proteins. Biochemical assays utilizing MCC 88-103 can elucidate the role of specific residues in mediating electron transport, protein docking, or regulatory processes within the mitochondrial intermembrane space, thereby advancing fundamental knowledge of mitochondrial biochemistry.

Antigen Presentation Research: MCC 88-103 is frequently used as a model antigen in studies of antigen processing and presentation. Its application in in vitro and ex vivo assays allows for the examination of peptide loading onto MHC molecules, the efficiency of antigen presentation by dendritic cells or other antigen-presenting cells, and the subsequent activation of T lymphocytes. Such research provides critical insights into the mechanisms governing adaptive immunity and the rules of peptide selection by MHC complexes.

Comparative Evolutionary Studies: The conserved nature of the cytochrome c sequence, and specifically the MCC 88-103 region, makes this peptide a valuable reference in evolutionary biochemistry. By comparing the immunogenic and structural properties of this fragment across different species, researchers can investigate evolutionary pressures shaping mitochondrial protein function and immune system diversity. Such comparative analyses enhance our understanding of molecular evolution, species adaptation, and the conservation of bioenergetic pathways.

Peptide Synthesis and Analytical Method Development: MCC 88-103 serves as a standard or reference material in the optimization of solid-phase peptide synthesis protocols and analytical techniques such as high-performance liquid chromatography (HPLC) and mass spectrometry. Its well-characterized sequence and physicochemical properties make it suitable for validating peptide purification, quantification, and sequence confirmation workflows, supporting quality assurance in peptide manufacturing and analytical laboratories.

1. Multifunctional peptide-oligonucleotide conjugate promoted sensitive electrochemical biosensing of cardiac troponin I

2. Myotropic activity and immunolocalization of selected neuropeptides of the burying beetle Nicrophorus vespilloides (Coleoptera: Silphidae)

3. An Isolated TCR αβ Restricted by HLA-A* 02: 01/CT37 Peptide Redirecting CD8+ T Cells to Kill and Secrete IFN-γ in Response to Lung Adenocarcinoma Cell Lines

4. Tachykinin-related peptides modulate immune-gene expression in the mealworm beetle Tenebrio molitor L

5. Immune responses to peptides containing homocitrulline or citrulline in the DR4-transgenic mouse model of rheumatoid arthritis