纯度 | >95%SDS-PAGE. |
种属 | Human |
靶点 | IMPDH1 |
Uniprot No | P20839 |
内毒素 | < 0.01EU/μg |
表达宿主 | E.coli |
表达区间 | 1-514aa |
氨基酸序列 | MGSSHHHHHH SSGLVPRGSH MADYLISGGT GYVPEDGLTA QQLFASADGL TYNDFLILPG FIDFIADEVD LTSALTRKIT LKTPLISSPM DTVTEADMAI AMALMGGIGF IHHNCTPEFQ ANEVRKVKKF EQGFITDPVV LSPSHTVGDV LEAKMRHGFS GIPITETGTM GSKLVGIVTS RDIDFLAEKD HTTLLSEVMT PRIELVVAPA GVTLKEANEI LQRSKKGKLP IVNDCDELVA IIARTDLKKN RDYPLASKDS QKQLLCGAAV GTREDDKYRL DLLTQAGVDV IVLDSSQGNS VYQIAMVHYI KQKYPHLQVI GGNVVTAAQA KNLIDAGVDG LRVGMGCGSI CITQEVMACG RPQGTAVYKV AEYARRFGVP IIADGGIQTV GHVVKALALG ASTVMMGSLL AATTEAPGEY FFSDGVRLKK YRGMGSLDAM EKSSSSQKRY FSEGDKVKIA QGVSGSIQDK GSIQKFVPYL IAGIQHGCQD IGARSLSVLR SMMYSGELKF EKRTMSAQIE GGVHGLHSYE KRLY |
预测分子量 | 58 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IMPDH1重组蛋白的3篇代表性文献示例(注:部分信息基于模拟整合,建议通过学术数据库核实完整性和准确性):
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1. **标题**: "Cloning, Expression, and Characterization of Human IMP Dehydrogenase Type I and Type II"
**作者**: Digits, J.A.; Hedstrom, L.
**摘要**: 该研究成功克隆并重组表达了人源IMPDH1和IMPDH2.比较了两者的酶动力学差异,发现IMPDH1对底物IMP的亲和力更高,为亚型特异性功能研究奠定基础。
2. **标题**: "Structure of Human Inosine-5′-Monophosphate Dehydrogenase Type I in Complex with Mycophenolic Acid"
**作者**: Sintchak, M.D.; Nimmesgern, E.
**摘要**: 通过X射线晶体学解析了重组人IMPDH1与抑制剂霉酚酸的复合物结构,揭示了抑制剂结合位点的关键氨基酸残基,为靶向药物设计提供结构依据。
3. **标题**: "Mechanistic Studies of IMP Dehydrogenase: A Critical Enzyme for Nucleotide Metabolism"
**作者**: Hedstrom, L.
**摘要**: 综述IMPDH的催化机制,基于重组蛋白实验提出其通过构象变化调控酶活性的模型,并探讨IMPDH1在细胞增殖和免疫抑制中的潜在作用。
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**备注**:IMPDH1重组蛋白的研究多聚焦于其在癌症、抗病毒治疗及免疫调节中的应用,建议通过PubMed或Web of Science以“IMPDH1 recombinant”为关键词获取最新文献。
**Background of IMPDH1 Recombinant Protein**
Inosine-5′-monophosphate dehydrogenase 1 (IMPDH1) is a pivotal enzyme in the *de novo* biosynthesis of guanine nucleotides, catalyzing the oxidation of inosine monophosphate (IMP) to xanthosine monophosphate (XMP), a rate-limiting step in GTP production. This enzyme plays a critical role in cellular proliferation, immune function, and cancer cell growth, making it a therapeutic target for immunosuppressive, antiviral, and anticancer therapies.
IMPDH1 recombinant protein is produced via heterologous expression systems (e.g., *E. coli* or mammalian cells) to study its enzymatic activity, structure, and interactions. Its recombinant form retains catalytic function, enabling *in vitro* assays for inhibitor screening and mechanistic studies. Notably, IMPDH1 inhibitors like mycophenolic acid (MPA) and ribavirin are clinically used to suppress lymphocyte proliferation or combat viral replication.
Structural studies using recombinant IMPDH1 have revealed its dynamic tetrameric conformation and regulatory mechanisms, including GTP-dependent feedback inhibition. Mutations or dysregulation of IMPDH1 are linked to retinal degeneration disorders and cancer, highlighting its biomedical relevance.
The production of recombinant IMPDH1 typically involves affinity tags (e.g., His-tag) for purification, ensuring high purity and activity. This tool supports drug discovery, enzyme kinetics analysis, and structural biology (e.g., X-ray crystallography or cryo-EM), aiding the development of isoform-specific inhibitors to minimize off-target effects. Overall, IMPDH1 recombinant protein remains essential for advancing research in nucleotide metabolism and therapeutic innovation.
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