SPA-Cys Recombinant produced in E.Coli is a single non-glycosylated polypeptide chain with a Cys on C-terminus. SPA-Cys is comprised of 5 IgG-binding domains E-D-A-B-C aligned in series containing 297 amino acids and having a molecular mass of 33.5kDa containing little or no carbohydrate.Cell wall binding region, cell membrane binding region and albumin binding region were removed to ensure the highest specific IgG binding.
SPA-Cys
目录号: GP24672纯度: >98%
Staphylococcal Protein-A Cys Recombinant
| 规格 | 价格 | 库存 | 数量 | 操作 |
|---|---|---|---|---|
| 10mg | ¥700.00 | 现货 | 1 | |
| 100mg | ¥3,850.00 | 现货 | 1 | |
| 1g | ¥29,400.00 | 现货 | 1 |
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文献被引
本产品暂无引用记录;以下为 GlpBio 产品在 Nature / Cell / Science 等顶刊的客户引用样例
Nature641, 529–536 (2025)
Nature628, 630–638 (2024)
Nature632, 686–694 (2024)
Nature618, 1017–1023 (2023)
Nature610, 366–372 (2022)
Cell187(9):2288-2304 (2024)
Cell183(7):1867-1883 (2020)
Science388(6745) (2025)
Science387(6739) (2025)
Science387(6734) (2025)
Cell Research35, 97–116 (2025)
Cell Research34, 683–706 (2024)
Cell Research33, 273–287 (2023)
Cell Research33, 546–561 (2023)
Cell Research33, 904–922 (2023)
Cell Research31, 1291–1307 (2021)
产品描述 Description
产品文档 Product Documents
Purity:>98%
Product Data
Purity
Greater than 98.0% as determined by:
Source
Escherichia Coli.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Shipping Condition
Shipped at Room temp.
Synonyms
Immunoglobulin G-binding protein A; IgG-binding protein A; Staphylococcal protein A; SPA.
Amino Acid Sequence
NAAQHDEAQQ NAFYQVLNMP NLNADQRNGF IQSLKDDPSQ SANVLGEAQK LNDSQAPKAD AQQNNFNKDQ QSAFYEILNM PNLNEAQRNG FIQSLKDDPS QSTNVLGEAK KLNESQAPKA DNNFNKEQQN AFYEILNMPN LNEEQRNGFI QSLKDDPSQS ANLLSEAKKL NESQAPKADN KFNKEQQNAF YEILHLPNLN EEQRNGFIQS LKDDPSQSAN LLAEAKKLND AQAPKADNKF NKEQQNAFYE ILHLPNLTEE QRNGFIQSLK DDPSVSKEIL AEAKKLNDAQ APKEEDC
Solubility
It is recommended to reconstitute the lyophilized SPA in sterile 18MΩ-cm H2O not less than 0.1mg/ml, which can then be further diluted to other aqueous solutions.
Stability
Lyophilized SPA although stable at room temperature for 3 weeks, should be stored desiccated below -18°C . Upon reconstitution SPA should be stored at 4°C between 2-7 days and for future use below -18°C . For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Formulation
SPA protein was lyophilized with no additives.