纯度 | >90%SDS-PAGE. |
种属 | E.coli |
靶点 | BLH1 |
Uniprot No | Q9SJ56 |
内毒素 | < 0.01EU/μg |
表达宿主 | E.coli |
表达区间 | 1-680aa |
氨基酸序列 | MAAYFHGNPPEISAGSDGGLQTLILMNPTTYVQYTQQDNDSNNNNNSNNSNNNNTNTNTNNNNSSFVFLDSHAPQPNASQQFVGIPLSGHEAASITAADNISVLHGYPPRVQYSLYGSHQVDPTHQQAACETPRAQQGLSLTLSSQQQQQQQHHQQHQPIHVGFGSGHGEDIRVGSGSTGSGVTNGIANLVSSKYLKAAQELLDEVVNADSDDMNAKSQLFSSKKGSCGNDKPVGESSAGAGGEGSGGGAEAAGKRPVELGTAERQEIQMKKAKLSNMLHEVEQRYRQYHQQMQMVISSFEQAAGIGSAKSYTSLALKTISRQFRCLKEAIAGQIKAANKSLGEEDSVSGVGRFEGSRLKFVDHHLRQQRALQQLGMIQHPSNNAWRPQRGLPERAVSVLRAWLFEHFLHPYPKDSDKHMLAKQTGLTRSQVSNWFINARVRLWKPMVEEMYMEEMKEQAKNMGSMEKTPLDQSNEDSASKSTSNQEKSPMADTNYHMNPNHNGDLEGVTGMQGSPKRLRTSDETMMQPINADFSSNEKLTMKILEERQGIRSDGGYPFMGNFGQYQMDEMSRFDVVSDQELMAQRYSGNNNGVSLTLGLPHCDSLSSTHHQGFMQTHHGIPIGRRVKIGETEEYGPATINGGSSTTTAHSSAAAAAAYNGMNIQNQKRYVAQLLPDFVA |
预测分子量 | 74,4 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 BLH1 重组蛋白的3篇示例参考文献(注:以下为模拟文献,实际文献需根据具体研究补充):
1. **《BLH1-KNAT蛋白互作调控拟南芥胚胎发育的分子机制》**
- **作者**: Smith A. et al.
- **摘要**: 研究通过酵母双杂交和重组蛋白体外互作实验,证实 BLH1 与 KNAT 蛋白形成复合物,调控拟南芥胚胎发育关键基因的表达。转基因植株中 BLH1 重组蛋白的过表达导致胚胎发育异常。
2. **《重组BLH1蛋白在大肠杆菌中的高效表达与纯化》**
- **作者**: Johnson R. et al.
- **摘要**: 报道 BLH1 基因的克隆及在大肠杆菌中的可溶性表达,通过亲和层析纯化获得高纯度重组 BLH1 蛋白,并验证其体外稳定性及结构完整性。
3. **《BLH1重组蛋白的DNA结合特性及功能域分析》**
- **作者**: Lee S. et al.
- **摘要**: 利用电泳迁移率实验(EMSA)和截断体重组蛋白,鉴定 BLH1 的DNA结合活性依赖于其N端同源结构域,揭示其在分生组织分化中的调控机制。
4. **《BLH1重组蛋白在种子休眠中的功能研究》**
- **作者**: Chen X. et al.
- **摘要**: 通过体外重组蛋白与激素处理实验,发现 BLH1 与脱落酸信号通路相互作用,调控种子休眠相关基因的表达,遗传学证据支持其生理功能。
(如需真实文献,建议在 PubMed 或 Google Scholar 中检索关键词 "BLH1 recombinant protein" 或结合具体物种名查询。)
BLH1 (BELL-like homeodomain 1) is a plant-specific transcription factor belonging to the three-amino-acid-loop-extension (TALE) homeodomain protein family. It plays a critical role in regulating developmental processes, particularly in meristem maintenance, organ boundary formation, and cell differentiation. BLH1 is structurally characterized by a conserved N-terminal BELL domain, which facilitates protein-protein interactions, and a C-terminal homeodomain responsible for DNA binding. It often functions synergistically with KNOTTED1-like homeobox (KNOX) proteins, forming heterodimeric complexes to modulate gene expression networks during plant growth.
The recombinant BLH1 protein is engineered for in vitro studies to dissect its molecular mechanisms. Produced via heterologous expression systems (e.g., *E. coli* or insect cells), it retains functional domains for biochemical assays, including DNA-binding affinity tests, protein interaction studies, and chromatin immunoprecipitation. Researchers utilize recombinant BLH1 to explore its role in signaling pathways, such as cytokinin and auxin cross-talk, and its impact on developmental plasticity under environmental stress.
BLH1’s biological significance is highlighted in model plants like *Arabidopsis thaliana*, where its loss-of-function mutants exhibit developmental defects in leaf morphology and floral organ patterning. Recent studies also suggest its involvement in epigenetic regulation, linking chromatin remodeling to developmental transitions. Recombinant BLH1 tools advance agricultural biotechnology by enabling targeted manipulation of plant architecture, potentially improving crop yield and stress resilience. Ongoing research focuses on its tissue-specific regulatory networks and potential applications in synthetic biology for trait engineering.
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