Human CD89 Protein (CD8-HM189)
Catalog: CD8-HM189
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| Product Description | Recombinant Human CD89 Protein is expressed from HEK293 with His tag at the C-Terminus.It contains Gln22-Asn227. |
Product Background |
CD89 (Fc alphaRI) is the human myeloid IgA Fc receptor expressed on cells, such as neutrophils, eosinophils and monocytes/macrophages.CD89 is a transmembrane glycoprotein that binds both subclasses of IgA in all its molecular forms (i.e. monomeric, dimeric and secretory IgA) via a region of its membrane-distal EC1 domain. |
Product Category |
Recombinant Protein |
Target |
CD89 |
| Synonyms | IgA Fc receptor; CD89; FCAR; CTB-61M7.2; FcalphaRI; Fc fragment of IgA |
Gene/Protein ID |
NP_001991.1 |
Species |
Human |
Exact Sequence |
Gln22-Asn227 |
| Molecular Weight | The protein has a predicted MW of 24.6 kDa. Due to glycosylation, the protein migrates to 45-65 kDa based on Tris-Bis PAGE result. |
Product Tag |
C-His |
Express System |
HEK293 |
| Purity | > 95% as determined by Tris-Bis PAGE;> 95% as determined by HPLC |
| Endotoxin | Less than 1EU per ug by the LAL method. |
| Form | Lyophilized |
| Shipping | Shipped at ambient temperature. |
| Formulation | Lyophilized from 0.22um filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization. |
| Reconstitution | Centrifuge the tube before opening. Reconstituting to a concentration more than 100 ug/ml is recommended. Dissolve the lyophilized protein in distilled water. |
| Stability And Storage | Reconstituted protein stable at -80°C for 12 months, 4°C for 1 week. Use a manual defrost freezer and avoid repeated freeze-thaw cycles. |
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The purity of Human CD89 is greater than 95% as determined by SEC-HPLC. |
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Human CD89 on Tris-Bis PAGE under reduced condition. The purity is greater than 95%. |
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