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Email: info@nsjbio.com
- Tel: 858.663.9055
- Email: info@nsjbio.com
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MHC class I polypeptide-related sequence A (MICA) is a stress-inducible, non-classical MHC class I-like glycoprotein that functions as a ligand for the activating receptor NKG2D. MICA is primarily expressed on epithelial cells and is strongly upregulated in response to cellular stress, infection, and malignant transformation, where it serves as a key signal for immune recognition. The MICA Antibody / Cross-Species Reactivity Antibody is designed to detect this conserved immune ligand across multiple experimental systems, supporting studies that extend from animal models to human biology.
MICA antibody, also referred to as MHC class I-related protein A antibody in the literature, recognizes a glycoprotein that is structurally related to classical MHC class I molecules but does not present antigen peptides. Instead, MICA functions as a stress-induced activation signal for natural killer cells and cytotoxic T lymphocytes through NKG2D engagement. Western blot analysis demonstrates detection of MICA in lung tissue lysates across multiple species, including human and commonly used laboratory animals, supporting cross-species reactivity. This capability is particularly important for immunology and oncology studies that rely on direct comparison between preclinical models and human tissue.
Structurally, MICA contains extracellular alpha domains that resemble classical MHC class I proteins, a transmembrane region, and a short cytoplasmic tail, but does not associate with beta-2 microglobulin. The protein undergoes extensive N-linked glycosylation, resulting in a higher apparent molecular weight on SDS-PAGE than predicted and often appearing as a broad or slightly heterogeneous band. This glycosylation-dependent migration pattern is consistently observed across tissue types and species, reflecting conserved post-translational processing of MICA.
Functionally, MICA plays a central role in immune surveillance by marking stressed or transformed cells for elimination. Its expression is induced by DNA damage, oxidative stress, and oncogenic signaling, making it a key component of early immune detection in cancer and infection. Because these pathways are conserved across species, the ability to detect MICA in both human and animal tissues is essential for mechanistic studies and therapeutic development. The cross-species detection supported by this antibody enables consistent tracking of MICA expression in comparative models of disease.
Clone MICA/4442 is designed to recognize conserved epitopes within the MICA protein, enabling reliable detection across multiple species and tissue types. This cross-species reactivity provides a clear and practical advantage for experimental workflows that integrate human samples with animal models. For researchers studying immune activation, tumor biology, or stress response pathways, this MICA antibody supports generation of biologically aligned data across systems, reinforcing its value in translational and comparative research.
This antibody is part of a broader antibody panel offered by NSJ Bioreagents.
Optimal dilution of the MICA Antibody / Cross-Species Reactivity Antibody should be determined by the researcher.
A portion of amino acids 1-200 was used as the immunogen for the MICA antibody.
Aliquot the MICA antibody and store frozen at -20oC or colder. Avoid repeated freeze-thaw cycles.
MICA antibody, MHC class I-related protein A antibody, MICA WB antibody, MICA multi-species antibody, MICA cross-reactivity antibody
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