鼠尾胶原蛋白I型 澄清牛瘤胃液 PD1/PDL1 重组人 PD-1 头孢吡普 重组人胰岛素
Gene Name Synonym:
CD340; ENV; ENVW; ERVWE1; HER-2; HER-2/neu; HER2; HERV-7q;HERV-W-ENV; HERV7Q; HERVW; HERVWENV; MLN 19; MLN19; NEU;NGL; TKR1
纯度：> 90 % as determined by SDS-PAGE
内毒素：< 1.0 EU per μg of the protein as determined by the LAL method
预测 ：N 端Thr 23
分子量：The recombinant human ErbB2 comprises 641 amino acids and has a calculated molecular mass of 71 kDa. As a result of glycosylation, rh ErbB2 migrates as an approximately 100-110 kDa protein in SDS-PAGE under reducing conditions.
1. Measured by its binding ability in a functional ELISA.
Immobilized human Erbb2 at 2.5 μg/ml (100 μl/well) can bind Herceptin with a linear range of 1.28-32 ng/ml.
2. Measured by its ability to block anti-ErbB2 mediated inhibition of BT474 human breast ductal carcinoma cell proliferation. The ED50 for this effect is 0.2-1 μg/mL in the presence of 0.6 µg/mL Anti-ErbB2/Her2 Monoclonal Antibody.
3. Using the Octet RED System, the affinity constant (Kd) of Her2 / ERBB2 Protein, Human, Recombinant (His Tag) (Cat: 10004-H08H) bound to Pertuzumab was 0.1 nM.
A DNA sequence encoding the extracellular domain (Met 1-Thr 652) of human ErbB2 (NP_004439.2) was fused with the polyhistidine tag at the C-terminus.
Lyophilized from sterile PBS, pH 7.4
Please contact us for any concerns or special requirements.
Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the hard copy of CoA.
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
稳定性 & 储存条件：
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃
Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Anti-Mouse IgG (Fc Specific)-Peroxidase produced in goat, affinity isolated antibody adsorbed with human IgG
affinity isolated antibody
direct ELISA: 1:50,000
immunohistochemistry (formalin-fixed, paraffin-embedded sections): 1:100
western blot: 1:80,000-1:160,000 using total cell extract of HeLa cells (5-10 μg per well
0.01M磷酸缓冲盐缓冲液（pH7.4, 含有0.05% MIT）溶液。
通过Avrameas, S., et al., Scand.J. Immunol., 8, Suppl. 7, 7 (1978)等描述的两步戊二醛方法进行制备。
Human PD-L1 / B7-H1 Protein, Mouse IgG1 Fc Tag, low endotoxin (MALS verified)
Human PD-L1, Mouse IgG1 Fc Tag, low endotoxin (PD1-H52A3) is expressed from human 293 cells (HEK293). It contains AA Phe 19 - Arg 238 (Accession # NP_054862.1).
Predicted N-terminus: Phe 19
This protein carries a mouse IgG1 Fc tag at the C-terminus.
The protein has a calculated MW of 51.4 kDa. The protein migrates as 55-65 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
Less than 0.1 EU per μg by the LAL method.
>95% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization.
Contact us for customized product form or formulation.
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
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