ELISA, Immunogen, SDS-PAGE, WB, Bioactivity testing in progress
Species
Homo sapiens (Human)
Nature
Recombinant
Endotoxin level
Please contact with the lab for this information.
Purity
>90% as determined by SDS-PAGE.
Predicted molecular weight
37.7 kDa
Form
Lyophilized
Storage buffer
Lyophilized from a solution in PBS pH 7.4, 0.02% NLS, 1 mM EDTA, 4% Trehalose, 1% Mannitol.
Please refer to the specific buffer information in the hardcopy of datasheet or the lot-specific COA.
Reconstitution
Reconstitute in sterile water for a stock solution. Adjust the volume of sterile water so that, after reconstitution, the final stock concentration matches the value indicated on the product label or datasheet.
RECONSTITUTION PROTOCOL 1. Allow the product to be reconstituted and the reconstitution diluent to reach room temperature. 2. Tap or briefly centrifuge the product vial before opening to dislodge any lyophilized material that may be dispersed on the wall or cap of the vial. 3. Use the diluent and stock concentration recommended in the product datasheet. If preparing a stock concentration higher than recommended, contact Technical Service. 4. After adding the diluent, re-cap the vial and invert gently by hand or place on a slow rocking platform to allow the reconstitution diluent to coat all the surfaces inside the vial. Note: Do not mix by vortexing or by pipetting the material up and down. 5. Allow the vial to sit at room temperature with gentle agitation for at least 15 minutes before aliquotting or using. 6. Store the reconstituted material in single use aliquots in polypropylene or siliconized tubes. Aliquots of 10 μL or larger are recommended.
Shipping
In general, proteins are provided as lyophilized powder/frozen liquid. They are shipped out with dry ice/blue ice unless customers require otherwise.
Stability and Storage
Use a manual defrost freezer and avoid repeated freeze thaw cycles. Store at 2 to 8°C for frequent use. Store at -20 to -80°C for twelve months from the date of receipt.
Lactosylceramide 4-alpha-galactosyltransferase (CD77/A4GALT) is a ~40 kDa protein. Glycosyltransferase involved in biosynthesis of P1, P(k) and the rare NOR antigens of P1PK histo-blood group system. Catalyzes the transfer of galactose from UDP-alpha-D-galactose in an alpha1,4 linkage to lactosylceramide/beta-D-galactosyl-(1->4)-beta-D-glucosyl-(1<->1)-ceramide(d18:1(4E)) to produce globotriaosylceramide/globoside Gb3Cer (d18:1(4E)), also known as P(k) antigen or CD77. Globoside Gb3Cer/P(k)/CD77 is a root structure in biosynthesis pathway of neutral glycosphingolipids of the globo-series. Broadly expressed in cell membranes of immune cells and other tissues, Gb3Cer/P(k)/CD77 antigen may participate in mechanisms that regulate cell-cell interactions and cell differentiation. In germinal center B cells, Gb3Cer/CD77 interacts with CD19 to drive centroblast-to-centrocyte transition, B cell receptor complex assembly and T follicular helper cell differentiation.
1. Steffensen, R. et al. (2000) The Journal of biological chemistry 275, 16723-9. PMID: 10747952
2. Kojima, Y. et al. (2000) The Journal of biological chemistry 275, 15152-6. PMID: 10748143
3. Suchanowska, A. et al. (2012) The Journal of biological chemistry 287, 38220-30. PMID: 22965229
4. Kaczmarek, R. et al. (2016) Biochemical and biophysical research communications 470, 168-174. PMID: 26773500
5. Jacob, F. et al. (2018) Cancer research 78, 2952-2965. PMID: 29572228
6. Szymczak-Kulus, K. et al. (2021) The Journal of biological chemistry 296, 100299. PMID: 33460651
Note
For research use only.
Images
SDS-PAGE
SDS-PAGE for Recombinant Human CD77/A4GALT Protein, N-His
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