Keratin 19 (K19) belongs to the keratin family of proteins, which maintains structural integrity of epithelia. In cancer, K19 is highly expressed in several types where it serves as a diagnostic marker.
Pack Size | Availability | Price/USD | Quantity |
---|---|---|---|
100 μg | 5 days | $ 371.00 | |
500 μg | 5 days | $ 1,490.00 | |
1 mg | 5 days | $ 2,480.00 |
Description | Keratin 19 (K19) belongs to the keratin family of proteins, which maintains structural integrity of epithelia. In cancer, K19 is highly expressed in several types where it serves as a diagnostic marker. |
Species | Canine |
Expression System | E. coli |
Tag | N-His |
Accession Number | NP_001240671.1 |
Synonyms | KRT19, CK-19, K19, Keratin-19, CK19, Keratin19, Cytokeratin19, Cytokeratin-19 |
Construction | Recombinant Canine keratin, type I cytoskeletal 19(310-399) Protein is expressed from E.coli with His tag at the N-Terminus. It contains Gln310-Leu399.[Accession |NP_001240671.1] |
Protein Purity | > 95% as determined by Tris-Bis PAGE; > 95% as determined by HPLC |
Molecular Weight | The protein has a predicted MW of 21.84 kDa same as Tris-Bis PAGE result. |
Endotoxin | Less than 1EU per μg by the LAL method. |
Formulation | Lyophilized from 0.22μm 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 μg/ml is recommended. Dissolve the lyophilized protein in distilled water. |
Stability & Storage |
-20 to -80°C for 12 months as supplied from date of receipt. -20 to -80°C for 3-6 months in unopened state after reconstitution. 2-8°C for 2-7 days after reconstitution. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles. |
Shipping |
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. |
Research Background | Keratin 19 (K19) belongs to the keratin family of proteins, which maintains structural integrity of epithelia. In cancer, K19 is highly expressed in several types where it serves as a diagnostic marker. |
bottom
Please read the User Guide of Recombinant Proteins for more specific information.
keratin, type I cytoskeletal 19 (310-399) Protein, Canine, Recombinant (His) KRT19 CK-19 K19 KRT-19 K-19 Keratin-19 K 19 CK 19 KRT 19 CK19 Keratin19 Cytokeratin19 Cytokeratin-19 recombinant recombinant-proteins proteins protein