纯度 | >90%SDS-PAGE. |
种属 | Human |
靶点 | PLA2G12 |
Uniprot No | Q9BZM1 |
内毒素 | < 0.01EU/μg |
表达宿主 | E.coli |
表达区间 | 23-185aa |
氨基酸序列 | QEQAQTTDWRATLKTIRNGVHKIDTYLNAALDLLGGEDGLCQYKCSDGSKPFPRYGYKPSPPNGCGSPLFGVHLNIGIPSLTKCCNQHDRCYETCGKSKNDCDEEFQYCLSKICRDVQKTLGLTQHVQACETTVELLFDSVIHLGCKPYLDSQRAACRCHYEE |
预测分子量 | 20.3 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PLA2G12重组蛋白的模拟参考文献示例(内容为虚构,仅供参考):
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1. **标题**: "Heterologous Expression and Functional Characterization of Recombinant Human PLA2G12 in Escherichia coli"
**作者**: Zhang L, et al.
**摘要**: 本研究成功在大肠杆菌中表达了重组人源PLA2G12蛋白,并通过亲和层析纯化获得高纯度产物。酶活性分析显示其具有特异性磷脂酶A2活性,且在体外模型中影响脂质代谢通路。
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2. **标题**: "Structural Insights into PLA2G12: Crystallographic Analysis of a Recombinant Phospholipase A2 Group XII Protein"
**作者**: Tanaka K, et al.
**摘要**: 首次报道了重组PLA2G12的X射线晶体结构,揭示了其独特的催化活性位点和底物结合域,为理解其与其他PLA2亚型的功能差异提供了结构基础。
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3. **标题**: "PLA2G12 Recombinant Protein Attenuates Hepatic Steatosis in a Mouse Model of Metabolic Dysfunction"
**作者**: Smith J, et al.
**摘要**: 利用哺乳动物细胞表达系统制备PLA2G12重组蛋白,动物实验表明其可通过调节脂蛋白分泌改善高脂饮食小鼠的肝脏脂肪变性,提示潜在治疗代谢疾病的应用。
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4. **标题**: "Comparative Enzymatic Activity of PLA2G12 Recombinant Isoforms: Implications for Lipid Signaling"
**作者**: Chen R, et al.
**摘要**: 对比分析了不同重组PLA2G12异构体的酶动力学参数,发现其在不同pH和钙离子浓度下的活性差异,强调了其在细胞脂质信号传导中的调控多样性。
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注:以上文献信息为模拟生成,实际研究中请通过学术数据库(如PubMed、Web of Science)检索真实文献。
PLA2G12 is a member of the phospholipase A2 (PLA2) superfamily, a group of enzymes that hydrolyze phospholipids at the *sn*-2 position to release free fatty acids and lysophospholipids. Specifically classified under the secreted PLA2 (sPLA2) subgroup, PLA2G12 is characterized by its unique structural and functional properties. Unlike many sPLA2s, PLA2G12 exhibits low enzymatic activity toward conventional phospholipid substrates, suggesting non-canonical roles beyond lipid metabolism. It is encoded by the *PLA2G12A* gene and is expressed in various tissues, including the liver, intestines, and immune cells.
Research highlights PLA2G12's involvement in lipid homeostasis and viral infection processes. Notably, it interacts with hepatitis C virus (HCV) particles, influencing viral assembly and infectivity, potentially through modulation of host lipid pathways. PLA2G12 has also been linked to lipoprotein metabolism, with studies in murine models showing altered plasma lipid profiles and reduced atherosclerosis upon its overexpression.
Recombinant PLA2G12 protein is produced using heterologous expression systems (e.g., *E. coli* or mammalian cells) for functional and structural studies. Its recombinant form retains the conserved sPLA2 features, including disulfide bonds and a calcium-binding loop critical for catalytic activity. However, its exact physiological substrates and mechanisms remain under investigation, partly due to its atypical enzymatic behavior.
Current interest in PLA2G12 revolves around its therapeutic potential. Inhibitors or enhancers of its activity could offer strategies for treating metabolic disorders, viral infections, or inflammatory diseases. Additionally, its role as a biomarker in certain pathologies is being explored. Despite progress, further studies are needed to fully elucidate its biological significance and translational applications.
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艾普蒂生物自主研发并建立综合性重组蛋白生产和抗体开发技术平台,包括: 哺乳动物细胞表达平台:利用哺乳动物细胞精准修饰蛋白,产出与天然蛋白相似的重组蛋白,用于药物研发、细胞治疗等。 杂交瘤开发平台:通过细胞融合筛选出稳定分泌单克隆抗体的杂交瘤细胞株,优化后的技术让抗体亲和力与特异性更高,应用于疾病诊断、免疫治疗等领域。 单 B 细胞筛选平台:FACS 用荧光标记和流式细胞仪快速分选特定 B 细胞;Beacon® 基于微流控技术,单细胞水平捕获、分析 B 细胞,挖掘抗体多样性,缩短开发周期。 凭借这些平台,艾普蒂生物为客户提供优质试剂和专业 CRO 技术服务,推动生物科技发展。
艾普蒂生物在重组蛋白和天然蛋白开发领域经验十分丰富,拥有超过 2 万种重组蛋白的开发案例。在四大重组蛋白表达平台的运用上,艾普蒂生物不仅经验老到,还积累了详实的成功案例。针对客户的工业化生产需求,我们能够定制并优化实验方案。通过小试探索、工艺放大以及条件优化等环节,对重组蛋白基因序列进行优化,全面探索多种条件,精准找出最契合客户需求的生产方法。 此外,公司还配备了自有下游验证平台,可对重组蛋白展开系统的质量检测与性能测试,涵盖蛋白互作检测、活性验证、内毒素验证等,全方位保障产品质量。 卡梅德生物同样重视蛋白工艺开发,确保生产出的蛋白质具备所需的纯度、稳定性与生物活性,这对于保障药物的安全性和有效性起着关键作用 ,与艾普蒂生物共同推动着行业的发展。
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