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- 详细信息
- 文献和实验
- 技术资料
- 库存:
999
- 供应商:
亚科因(Abbkine)
- 英文名:
Human BMP-4 protein, His tag (Animal-Free)
- 规格:
5 μg/20 μg/100 μg/1 mg
| 规格: | 5 μg | 产品价格: | ¥588.0 |
|---|---|---|---|
| 规格: | 20 μg | 产品价格: | ¥1498.0 |
| 规格: | 100 μg | 产品价格: | ¥3998.0 |
| 规格: | 1 mg | 产品价格: | 询价 |
重组人骨形态发生蛋白4 (BMP-4) | 人源 | His标签 | 无动物源
产品货号: PRP1064
产品类型: 高纯度、高活性人源重组细胞因子
产品概述
本产品是采用无动物源体系的重组人源骨形态发生蛋白4 (BMP-4)。该蛋白通过大肠杆菌表达系统生产,带有N端6×His标签,经严格纯化后获得>95%的高纯度蛋白。BMP-4是TGF-β超家族的关键成员,在细胞分化、骨骼形成及胚胎发育等生物过程中扮演重要角色。
关键特性与优势
- 高生物活性: 经功能验证,其诱导ATDC5细胞碱性磷酸酶生成的ED₅₀ < 0.58 ng/mL。
- 无动物源生产: 整个生产过程无动物成分,极大降低外源病原风险。
- 极低内毒素: 每1μg蛋白质中内毒素(EU)含量< 0.1 EU (LAL法检测),适用于敏感细胞实验。
- 高纯度: 经SDS-PAGE验证纯度超过95%,确保实验结果的一致性与可靠性。
产品详情
| 蛋白名称 | 重组人骨形态发生蛋白4 (BMP-4) |
| 英文名称 | Human BMP-4 protein, His tag (Animal-Free) |
| 表达宿主 | 大肠杆菌 |
| 蛋白序列 | 人源BMP-4 (Met302-Arg408) (UniProt: P12644) |
| 分子量 | 12.88 kDa (计算),12 kDa (SDS-PAGE,还原条件) |
| 标签 | N端6×His标签 |
| 种属来源 | 人 |
| 产品形式 | 冻干粉,溶于20 mM碳酸钠缓冲液 (pH 9.0) |
生物活性验证
通过测定其诱导小鼠软骨细胞系ATDC5产生碱性磷酸酶(ALP)的能力来验证生物学活性。该测定方法证实了重组BMP-4蛋白具有卓越的信号传导功能。
使用注意事项
- 复溶前,请先以3000 rpm离心5分钟。
- 建议使用提供的无菌ddH₂O进行复溶,浓度不低于100 μg/mL。
- 复溶时,请在室温下静置孵育至少20分钟,以确保蛋白充分溶解。请勿振荡或涡旋,以免破坏蛋白结构影响活性。
- 复溶后的蛋白可在2-8°C下保存一周。若需长期保存,请在含有载体蛋白(如0.1% BSA)的缓冲液中稀释后分装,并存放于-20°C或-80°C,避免反复冻融。
保存与运输
- 保存条件: 冻干粉于-20°C保存,保质期1年。
- 运输条件: 全程冰袋(蓝冰)运输,确保蛋白稳定性。
规格与价格
| 规格 | 价格 (人民币) | 货期 |
|---|---|---|
| 5 μg | 588 | 现货,次日发货 |
| 20 μg | 1498 | 现货,次日发货 |
| 100 μg | 3998 | 请咨询 |
| 1 mg | 请咨询 | 请咨询 |
背景信息
骨形态发生蛋白4 (BMP-4) 是一种多功能的分泌信号细胞因子,属于TGF-β超家族。它通过结合并激活特定的I型和II型丝氨酸/苏氨酸激酶受体,启动Smad信号通路,从而调控靶基因的转录。BMP-4在早期胚胎发育、中胚层诱导、骨骼形成以及细胞增殖、分化和凋亡等多种生物学过程中发挥着核心作用。其在科研领域是研究骨骼生物学、发育生物学和干细胞分化的宝贵工具。
警告: 本产品仅限于科研用途,不适用于人体或临床诊断。使用者应确保其应用不违反任何专利或许可规定。
别名: BMP-2B, DVR4
注意:以上信息可能随着产品优化升级等因素产生变动,具体信息请咨询亚科因公司。

Recombinant Human Bone Morphogenetic Protein 4 (BMP-4) | Human-derived | His-tag | Animal‑free
Product Number: PRP1064
Product Type: High-purity, high-activity human recombinant cytokine
Product Overview
This product is a recombinant human BMP-4 produced using an animal‑free system. The protein is expressed in Escherichia coli, carries an N‑terminal 6×His tag, and is rigorously purified to >95% purity. BMP-4 is a pivotal member of the TGF‑β superfamily, playing essential roles in cellular differentiation, skeletal formation, and embryonic development.
Key Characteristics and Advantages
- High Biological Activity: Functionally validated; induces alkaline phosphatase production in ATDC5 cells with a ED₅₀ < 0.58 ng/mL.
- Animal‑Free Production: The entire manufacturing process contains no animal‑derived components, dramatically reducing the risk of exogenous pathogens.
- Ultra‑Low Endotoxin: Endotoxin level per 1 µg protein is < 0.1 EU (LAL assay), suitable for sensitive cell assays.
- High Purity: SDS‑PAGE analysis confirms purity >95%, ensuring consistency and reliability of experimental results.
Product Details
| Protein Name | Recombinant Human Bone Morphogenetic Protein 4 (BMP-4) |
| English Name | Human BMP‑4 protein, His tag (Animal‑Free) |
| Expression Host | Escherichia coli |
| Protein Sequence | Human BMP‑4 (Met302‑Arg408) (UniProt: P12644) |
| Molecular Weight | 12.88 kDa (calculated), 12 kDa (SDS‑PAGE, reduced conditions) |
| Tag | N‑terminal 6×His tag |
| Species Origin | Human |
| Product Form | Lyophilized powder, reconstituted in 20 mM sodium carbonate buffer (pH 9.0) |
Bioactivity Validation
Biological activity was verified by measuring the ability of the protein to induce alkaline phosphatase (ALP) production in the murine chondrogenic cell line ATDC5. This assay confirms that the recombinant BMP‑4 protein possesses robust signaling activity.
Usage Precautions
- Prior to reconstitution, centrifuge at 3000 rpm for 5 minutes.
- Reconstitute with the provided sterile ddH₂O to a concentration of ≥100 µg/mL.
- Allow the solution to stand at room temperature for at least 20 minutes to ensure complete dissolution. Do not vortex or shake to avoid disrupting protein structure and activity.
- The reconstituted protein can be stored at 2–8 °C for up to one week. For long‑term storage, dilute in a buffer containing a carrier protein (e.g., 0.1 % BSA), aliquot, and store at –20 °C or –80 °C, avoiding repeated freeze‑thaw cycles.
Storage and Shipping
- Storage Condition: Lyophilized powder stored at –20 °C; shelf life 1 year.
- Shipping Condition: Transported on ice packs (blue ice) throughout to maintain protein stability.
Specifications and Pricing
| Specification | Price (CNY) | Lead Time |
|---|---|---|
| 5 µg | 588 | In stock, next‑day shipping |
| 20 µg | 1498 | In stock, next‑day shipping |
| 100 µg | 3998 | Contact for availability |
| 1 mg | Contact for price | Contact for availability |
Background Information
Bone morphogenetic protein 4 (BMP‑4) is a multifunctional secreted signaling cytokine belonging to the TGF‑β superfamily. It binds to and activates specific type I and type II serine/threonine kinase receptors, initiating the Smad signaling cascade to regulate transcription of target genes. BMP‑4 plays a central role in early embryogenesis, mesoderm induction, skeletal formation, and numerous cellular processes including proliferation, differentiation, and apoptosis. In research, it is an invaluable tool for studies of skeletal biology, developmental biology, and stem‑cell differentiation.
Warning: This product is for research use only and is not intended for human administration or clinical diagnostics. Users must ensure that their applications do not infringe any patents or licensing agreements.
Synonyms: BMP‑2B, DVR4
Note: The above information may change due to product optimization or upgrades; please contact Yakein Co. for the most current details.
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文献和实验USA公司简介 ACROBiosystems 公司总部位于美国马里兰州Bethesda,首创领先的HEKMax 人源细胞高效表达技术,基于世界领先的大规模动物细胞培养技术平台,专注于100%天然构象的高质量细胞因子/重组蛋白的开发与生产,全世界范围内提供各种高活性重组蛋白产品及技术服务,同时以高质量、短供货周期与高性价比著称于行业。ACROBiosystems开发的Active Max细胞因子品牌以100%天然构象、高活性、低内毒素、高稳定性、无动物源性成分等优点,热销全世界30多个国家
范围,该例为0.1-1.0 mg/ml。这个浓度范围对于不同的细胞因子或重组蛋白是不同的。如重组人FGF-6(产品编号:100-30)为0.5-1.0mg/ml,而重组人Activin B(产品编号:120-15)则一定要是0.5mg/ml。 高于或低于该浓度范围会有什么问题呢? 答:首先,细胞因子或蛋白会不稳定,即很容易出现活性下降的现象。其次,高于这个浓度范围,可能会超过该蛋白的最大溶解浓度,即蛋白无法完全溶解。再者,高于或低于该浓度范围,蛋白可能会出现聚集(aggregation
或重组蛋白不能完全溶解或者根本无法溶解,这样所配得的细胞因子或重组蛋白必然活性不够或丧失。 有不少用户没注意说明书上的描述,而是根据习惯,直接用PBS或培养液(1640或DMEM等)等溶解细胞因子或蛋白的冻干粉。这样做可以吗? 答:有时可以,要看具体情况。PeproTech的大多数细胞因子或蛋白冻干粉的溶解液不是PBS,此时千万不能用PBS或培养液直接来溶解,具体原因在上面已经叙述过。而有部分细胞因子,如重组人KGF(产品编号:100-19)和重组人FGF-23(产品编号:100
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