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Mouse Selenoprotein

Updated: 2026-07-20

Overview

Mouse Selenoprotein refers to a family of selenium-containing proteins critical for redox regulation and antioxidant defense in murine models. These proteins incorporate selenocysteine (Sec), often termed the 21st amino acid, encoded by the UGA codon. Selenoprotein P (SelP) is the most studied isoform, functioning as a selenium transporter in plasma. Research on mouse selenoproteins provides insights into human analogs due to conserved biological pathways. They are widely used to study oxidative stress-related diseases, such as neurodegeneration and cardiovascular disorders. Their expression is tightly regulated by dietary selenium levels, making them biomarkers for selenium status.

Physical and Chemical Properties

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Mouse selenoproteins exhibit unique properties due to selenocysteine residues, which confer higher reactivity compared to cysteine. For instance, SelP contains multiple Sec residues (10 in mice) and glycosylation sites, affecting its molecular weight (50-60 kDa) and solubility. These proteins are typically stable in neutral buffers but sensitive to strong reducing agents or prolonged exposure to air. Purified forms are often lyophilized to extend shelf life. Analytical methods like mass spectrometry and Western blotting are employed to confirm identity and purity.

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Main Applications

In biomedical research, mouse selenoproteins are pivotal for investigating selenium's role in health and disease. SelP knockout models help elucidate mechanisms of selenium transport and its impact on brain and kidney functions. They are also used in drug development targeting oxidative stress, such as therapies for Parkinson’s disease. Additionally, recombinant selenoproteins serve as standards in diagnostic assays to measure selenium deficiency or toxicity in clinical samples.

Safety and Storage

小鼠硒蛋白P1ELISA检测试剂盒 SEPP1 ELISA KitA106173上海抚生实业有限公司

While mouse selenoproteins are not classified as hazardous, standard laboratory precautions (e.g., gloves, eye protection) should be followed. Avoid inhalation or direct contact with powders during reconstitution. For storage, aliquoting is recommended to minimize freeze-thaw cycles. Lyophilized proteins are stable for years at -80°C, while solutions retain activity for weeks at 4°C with protease inhibitors. Always verify activity post-thawing via functional assays.

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B2B Procurement Guide

When procuring mouse selenoproteins, prioritize vendors with ISO certification and batch-specific certificates of analysis. Key parameters include purity (≥95%), endotoxin levels (<1 EU/μg), and functional validation data (e.g., ELISA reactivity). Bulk purchases may qualify for discounts, but ensure cold-chain logistics to prevent degradation. Custom services (e.g., labeling, mutant isoforms) are available from specialized suppliers. Compare lead times, as some proteins require express synthesis.

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