甲硫氨酸亚砜还原酶 B (MsrB),也称为 SelX,是一种硒蛋白。甲硫氨酸在硫原子处的氧化导致替代差向异构体:Met(O) 的 R 形式和 Met(O) 的 S 形式。 MsrB 可以将游离和蛋白质结合的甲硫氨酸亚砜的 R 形式还原为甲硫氨酸。它在保护细胞免受氧化损伤方面起着至关重要的作用。 MsrA 仅还原 Met(O) 的 S 差向异构体,而 MsrB 还原蛋白质中 Met(O) 的 R 差向异构体。虽然MsrA和MsrB的催化机制相似,但两个Msr没有序列同一性,也没有结构相似性。
0 result found你在这里:首页产品 甲硫氨酸亚砜还原酶 A (MsrA)甲硫氨酸亚砜还原酶 A (MsrA)甲硫氨酸亚砜还原酶 (MsrA) 可将蛋白质中的甲硫氨酸亚砜 (MetO) 残留物和游离的 MetO 还原为甲硫氨酸 (Met)。 MsrA 的催化活性取决于结合的金属和辅助因子,但它需要减少 DTT 或硫氧还蛋白再生系统的当量。 MsrA 在保护细胞免受氧化损伤方面起着至关重要的作用。 MsrA 的底物包括钙调蛋白、HIV 蛋白酶和 α1-蛋白酶抑制剂。最近的研究表明,MsrA 与哺乳动物的阿尔茨海默氏病之间存在联系。
找到 0 个结果你在这里:首页按感兴趣分子分类的产品 镍纹蛋白样蛋白(Subfatin,METRNL)镍纹蛋白样蛋白(Subfatin,METRNL)找到 0 个结果你在这里:主页产品(按感兴趣的分子分类)元粘附素(LYRIC、3D3/LYRIC、星形胶质细胞升高基因 1 蛋白、AEG-1、富含赖氨酸的 CEACAM1 共分离蛋白、转移粘附蛋白、MTDH、AEG1)元粘附素(LYRIC、3D3) /LYRIC、星形胶质细胞升高基因 1 蛋白、AEG-1、富含赖氨酸的 CEACAM1 共分离蛋白、转移粘附蛋白、MTDH、AEG1)在蛋白质中发现 1 个结果
ProteinsProductSizePriceMetadherin Human E. coli类型:重组蛋白
RD1724571000.1 mg你在这里:首页产品(按感兴趣的分子分类)更年期促性腺激素(MG、hMG)更年期促性腺激素(MG、hMG)在蛋白质中发现 2 个结果
ProteinsProductSizePriceMenopausal Gonadotropin Human类型:天然蛋白
RP1782510055 mgRP17825101010 mg你在这里:首页产品 MEC(粘膜相关上皮趋化因子,CCL28,CCK-1)MEC(粘膜相关上皮趋化因子,CCL28,CCK-1)0 结果发现你在这里:首页按感兴趣的分子分类的产品 MDC(巨噬细胞衍生趋化因子,CCL22,STCP-1,ABCD-1)MDC(巨噬细胞衍生趋化因子,CCL22,STCP-1,ABCD-1)找到 0 个结果你在这里:首页按目标分子分类的产品 M-CSF(巨噬细胞集落刺激因子,CSF-1,MGI-IM)M-CSF(巨噬细胞集落刺激因子,CSF-1,MGI-IM)找到 0 个结果你在这里:首页按目标分子分类的产品 MCP-5(单核细胞趋化蛋白-5,CCL12)发现 MCP-5(单核细胞趋化蛋白-5,CCL12)0 结果你在这里:首页按目标分子分类的产品 MCP-4(单核细胞趋化蛋白-4、CCL13、NCC-1)发现 MCP-4(单核细胞趋化蛋白-4、CCL13、NCC-1)0 结果你在这里:首页按目标分子分类的产品 MCP-3(单核细胞趋化蛋白-3、CCL7、MARC)MCP-3(单核细胞趋化蛋白-3、CCL7、MARC)找到 0 个结果你在这里:首页按目标分子分类的产品 MCP-2(单核细胞趋化蛋白-2、CCL8、HC14)MCP-2(单核细胞趋化蛋白-2、CCL8、HC14)找到 0 个结果你在这里:主页产品,按感兴趣的分子分类 基质金属蛋白酶 3(Stromelysin-1、SL-1、Transin-1、STMY1、MMP3)基质金属蛋白酶 3(Stromelysin-1、SL-1、Transin-1、STMY1、MMP3 )在蛋白质中发现 1 个结果
ProteinsProductSizePriceMatrix Metalloproteinase-3 Human HEK293类型:重组蛋白质
RD1725101000.1 mg- Regulatory status:RUO
- Type:Recombinant
- Source:E. coli
- Other names:Cachectin, Tumor necrosis factor alpha, DIF
- Species:Human
Type
Recombinant
Description
TNF-α is a pleiotropic pro-inflammatory cytokine secreted by various cells, including adipocytes, activated monocytes, macrophages, B cells, T cells and fibroblasts. It belongs to the TNF family of ligands, and signals through two receptors, TNFR1 and TNFR2. TNF-α is cytotoxic to a wide variety of tumor cells, and is an essential factor in mediating the immune response against bacterial infections. TNF-α also plays a role in the induction of septic shock, autoimmune diseases, rheumatoid arthritis, inflammation, and diabetes. Human and murine TNF-α demonstrate significant cross-species reactivity. TNF-α exists in two forms; a type II transmembrane protein, and a mature soluble protein. The TNF-α transmembrane protein is proteolitically cleaved to yield a soluble, biologically active, 17 kDa TNF-α, which forms a non-covalently linked homotrimer in solution. Recombinant Human TNF-α is a soluble 157 amino acid protein (17.4 kDa) which corresponds to C-terminal extracellular domain of the full length transmembrane protein.
Amino Acid Sequence
VRSSSRTPSDKPVAHVVANPQAEGQLQWLNRRANALLANGVELRDNQLVVPSEGLYLIYSQVLFKGQGCPSTHVLLTHTISRIAVSYQTKVNLLSAIKSPCQRETPEGAEAKPWYEPIYLGGVFQLEKGDRLSAEINRPDYLDFAESGQVYFGIIAL
Source
E. coli
Purity
> 98% by SDS-PAGE gel and HPLC analyses
Biological Activity
The ED 50 as determined by the cytolysis of murine L929 cells in the presence of Actinomycin D is ≤ 0.05 ng/ml, corresponding to a specific activity of ≥ 2×10 7 units/mg.
Endotoxin
Endotoxin level is <0.1 ng/μg of protein (<1EU/μg).
Formulation
Sterile filtred through a 0.2 micron filter. Lyophilized from 3mM Tris, pH 8.0
Reconstitution
Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1–1.0 mg/ml. Note: Allow the reconstituted vial to sit at room temperature for 2 hours before use. Do not vortex. This solution can be stored at 2–8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at –20°C to –80°C.
Storage/Expiration
–20°C
Note
For Research Use Only
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