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纯度 | >90%SDS-PAGE. |
种属 | Human |
靶点 | NGF |
Uniprot No | P01138 |
内毒素 | < 0.01EU/μg |
表达宿主 | E.coli |
表达区间 | 122-241aa |
氨基酸序列 | SSSHPIFHRG EFSVCDSVSV WVGDKTTATD IKGKEVMVLG EVNINNSVFK QYFFETKCRD PNPVDSGCRG IDSKHWNSYC TTTHTFVKAL TMDGKQAAWR FIRIDTACVC VLSRKAVRRA SSSHPIFHRG EFSVCDSVSV WVGDKTTATD IKGKEVMVLG EVNINNSVFK QYFFETKCRD PNPVDSGCRG IDSKHWNSYC TTTHTFVKAL TMDGKQAAWR FIRIDTACVC VLSRKAVRRA |
预测分子量 | 27 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NGF重组蛋白的3篇代表性文献示例(内容为模拟概括,仅供参考):
1. **《Expression and purification of recombinant human nerve growth factor in Escherichia coli》**
- 作者:Smith A, et al.
- 摘要:研究通过大肠杆菌表达系统生产重组人NGF,优化了诱导条件并采用亲和层析纯化,验证了重组蛋白的生物活性,为大规模生产提供了方法。
2. **《Recombinant human NGF accelerates corneal epithelial wound healing in vivo》**
- 作者:Lee C, et al.
- 摘要:通过动物实验证明,重组人NGF滴眼液能显著促进角膜上皮损伤修复,机制涉及细胞增殖和抗炎作用,提示其治疗角膜疾病的潜力。
3. **《Structural and functional characterization of a novel NGF variant produced in mammalian cells》**
- 作者:Zhang Y, et al.
- 摘要:利用哺乳动物细胞表达系统生产高纯度重组NGF变体,通过晶体结构和体外神经元培养验证其与天然NGF相似的构象和促神经生长功能。
**提示**:实际文献需通过PubMed、Web of Science等平台检索,建议结合关键词“recombinant NGF protein”+“expression/therapy/structure”查找最新研究。
Nerve Growth Factor (NGF), first discovered in the 1950s by Rita Levi-Montalcini and Stanley Cohen, is a neurotrophic protein essential for the development, survival, and function of neurons. As a member of the neurotrophin family, NGF binds to two receptors: the high-affinity TrkA tyrosine kinase receptor and the low-affinity p75 neurotrophin receptor. It plays a critical role in the growth and maintenance of sensory and sympathetic neurons, as well as in regulating synaptic plasticity and inflammatory responses.
Recombinant NGF (rhNGF) is produced using genetic engineering techniques, typically by expressing the human NGF gene in bacterial, yeast, or mammalian cell systems. Mammalian systems (e.g., CHO cells) are preferred for generating glycosylated, bioactive forms. The recombinant protein retains the biological activity of native NGF, enabling its use in research and therapeutic applications.
In biomedical research, rhNGF is employed to study neurodevelopmental processes, neurodegenerative diseases (e.g., Alzheimer’s), and nerve injury repair mechanisms. Therapeutically, it has been explored for treating neuropathies, corneal ulcers, and glaucoma. Notably, rhNGF-based eye drops (e.g., cenegermin) were approved in 2018 for neurotrophic keratitis, marking a milestone in clinical translation.
Despite its potential, challenges remain. NGF’s dual role in promoting both neuronal survival and pain signaling complicates therapeutic targeting. Additionally, delivery barriers (e.g., blood-brain penetration) and side effects (e.g., hyperalgesia) limit systemic applications. Ongoing research focuses on engineered variants, localized delivery systems, and combination therapies to enhance efficacy and safety.
Overall, rhNGF represents a pivotal tool in neuroscience and a promising candidate for addressing unmet needs in neurology and regenerative medicine.
在生物科技领域,蛋白研发与生产是前沿探索的关键支撑。艾普蒂作为行业内的创新者,凭借自身卓越的研发实力,每年能成功研发 1000 多种全新蛋白,在重组蛋白领域不断突破。 在重组蛋白生产过程中,艾普蒂积累了丰富且成熟的经验。从结构复杂的跨膜蛋白,到具有特定催化功能的酶、参与信号传导的激酶,再到用于免疫研究的病毒抗原,艾普蒂都能实现高效且稳定的生产。 这一成就离不开艾普蒂强大的技术平台。我们构建了多元化的重组蛋白表达系统,昆虫细胞、哺乳动物细胞以及原核蛋白表达系统协同运作。不同的表达系统各有优势,能够满足不同客户对重组蛋白的活性、产量、成本等多样化的需求,从而提供高品质、低成本的活性重组蛋白。 艾普蒂提供的不只是产品,更是从源头到终端的一站式解决方案。从最初的基因合成,精准地构建出符合要求的基因序列,到载体构建,为蛋白表达创造适宜的环境,再到蛋白质表达和纯化,每一个环节都严格把控。我们充分尊重客户的个性化需求,在表达 / 纯化标签的选择、表达宿主的确定等方面,为客户量身定制专属方案。 同时,艾普蒂还配备了多种纯化体系,能够应对不同特性蛋白的纯化需求。这种灵活性和专业性,极大地提高了蛋白表达和纯化的成功率,让客户的研究项目得以顺利推进,在生物科技的探索道路上助力每一位科研工作者迈向成功。
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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