纯度 | >90%SDS-PAGE. |
种属 | Rat |
靶点 | CYP3A2 |
Uniprot No | P05183 |
内毒素 | < 0.01EU/μg |
表达宿主 | E.coli |
表达区间 | 1-504aa |
氨基酸序列 | MDLLSALTLETWVLLAVILVLLYRLGTHRHGIFKKQGIPGPKPLPFLGTVLNYYKGLGRFDMECYKKYGKIWGLFDGQTPVFAIMDTEMIKNVLVKECFSVFTNRRDFGPVGIMGKAVSVAKDEEWKRYRALLSPTFTSGRLKEMFPIIEQYGDILVKYLKQEAETGKPVTMKKVFGAYSMDVITSTSFGVNVDSLNNPKDPFVEKTKKLLRFDFFDPLFLSVVLFPFLTPIYEMLNICMFPKDSIAFFQKFVHRIKETRLDSKHKHRVDFLQLMLNAHNNSKDEVSHKALSDVEIIAQSVIFIFAGYETTSSTLSFVLYFLATHPDIQKKLQEEIDGALPSKAPPTYDIVMEMEYLDMVLNETLRLYPIGNRLERVCKKDIELDGLFIPKGSVVTIPTYALHHDPQHWPKPEEFHPERFSKENKGSIDPYVYLPFGNGPRNCIGMRFALMNMKLALTKVLQNFSFQPCKETQIPLKLSRQAILEPEKPIVLKVLPRDAVINGA |
预测分子量 | 57,7 kDa |
蛋白标签 | His tag N-Terminus |
缓冲液 | PBS, pH7.4, containing 0.01% SKL, 1mM DTT, 5% Trehalose and Proclin300. |
稳定性 & 储存条件 | Lyophilized protein should be stored at ≤ -20°C, stable for one year after receipt. Reconstituted protein solution can be stored at 2-8°C for 2-7 days. Aliquots of reconstituted samples are stable at ≤ -20°C for 3 months. |
复溶 | Always centrifuge tubes before opening.Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100μg/ml. Dissolve the lyophilized protein in distilled water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles. |
以下是关于大鼠CYP3A2重组蛋白的相关文献示例(注:CYP3A2为大鼠特异性酶,人类对应同源酶为CYP3A4):
1. **文献名称**: "Functional expression of cytochrome P450 3A2 in Escherichia coli and its role in testosterone metabolism"
**作者**: Yamazaki H, et al.
**摘要**: 研究利用大肠杆菌表达系统成功重组表达大鼠CYP3A2蛋白,并证实其在体外代谢睾酮的活性,揭示了其与人类CYP3A4的底物特异性差异。
2. **文献名称**: "Comparative analysis of recombinant CYP3A2 and CYP3A4 metabolism of midazolam in insect cell systems"
**作者**: Komatsu T, et al.
**摘要**: 通过昆虫细胞(Sf9)系统共表达CYP3A2与细胞色素还原酶,比较其与CYP3A4对咪达唑仑的代谢动力学,发现CYP3A2对特定羟化代谢途径的催化效率更高。
3. **文献名称**: "Role of rat CYP3A2 in drug-drug interactions: Studies with recombinant enzyme and liver microsomes"
**作者**: Ohmori S, et al.
**摘要**: 利用重组CYP3A2蛋白及大鼠肝微粒体,评估其对多种药物(如红霉素、地塞米松)的代谢抑制效应,为临床前药物相互作用研究提供数据支持。
4. **文献名称**: "Heterologous expression of CYP3A2 in yeast and characterization of its catalytic activity toward aflatoxin B1"
**作者**: Ueng YF, et al.
**摘要**: 在酵母系统中重组表达CYP3A2.并证明其对黄曲霉毒素B1的氧化代谢能力,提示其在致癌物解毒过程中的潜在作用。
---
**注意**:CYP3A2为大鼠特异性P450酶,若需人类相关研究,建议检索CYP3A4/5文献。以上文献为领域内典型研究方向示例,实际文献细节需通过学术数据库(如PubMed)确认。
CYP3A2. a member of the cytochrome P450 3A subfamily, is a drug-metabolizing enzyme primarily expressed in rodent liver, particularly in rats. As an isoform of the CYP3A family, it plays a critical role in the oxidative metabolism of diverse endogenous and exogenous compounds, including pharmaceuticals, steroids, and environmental toxins. Unlike human CYP3A4 (its functional counterpart), CYP3A2 exhibits species-specific expression patterns and substrate preferences, making it a valuable model for studying xenobiotic metabolism in preclinical rodent studies.
Recombinant CYP3A2 protein is engineered to enable detailed in vitro investigations of enzyme kinetics, drug-drug interactions, and metabolic pathways. Produced using heterologous expression systems such as bacterial (E. coli), yeast, or insect cell lines (e.g., baculovirus/Sf9), the recombinant protein retains catalytic activity when combined with necessary redox partners (cytochrome P450 reductase and cytochrome b5). This allows researchers to bypass the complexity of isolating the native enzyme from liver tissue.
Studies using recombinant CYP3A2 have contributed to understanding sex-dependent metabolism differences, as its expression in rats is androgen-regulated. The protein is particularly useful for screening drug candidates, assessing species-specific metabolic profiles, and evaluating enzyme inhibition/induction risks. However, challenges remain in mimicking its native membrane-bound conformation and achieving consistent activity across expression platforms. Ongoing research focuses on optimizing protein stability and activity for high-throughput applications in toxicology and personalized medicine development.
×