E. coli-expressed, N-terminal His-tagged recombinant protein corresponding to Phe25-Ser54 of mouse Insulin-B linked by polypeptide linker (GGGGS) to Gly90-Asn110 of mouse Insulin A (UniProt accession #P01326).
Amino Acid Sequence:
FVKQHL CGSHLVEALY LVCGERGFFY TPMSGGGGSG IVDQCCTSIC SLYQLENYCN
Preditcted Molecular Weight:
Accurate Molecular Weight:
10kD (SDS-PAGE reducing conditions)
Predicted Isoelectric Point:
Suitable for use in ELISA, Western Blot and SDS-PAGE. Other applications not tested.
Optimal dilutions to be determined by the researcher.
Storage and Stability:
Lyophilized powder may be stored at -70°C. Stable for 6 months after receipt. Reconstitute with sterile PBS. Aliquot to avoid repeated freezing and thawing. Store at -70°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Thermal stability is described by the loss rate of the target protein. The loss rate was determined by accelerated thermal degradation by incubating the protein at 37°C for 48h, with no obvious degradation or precipitation observed. Protein loss is <5% within the expiration date under appropriate storage conditions.
Included Protein Molecular Weight Marker:
168631: Unstained Protein Molecular Weight Marker, 10-70kD
Suppled as a liquid in 62.5mM Tris-H3PO4, pH 7.5, 1mM EDTA, 2% SDS, 100mM DTT, 1mM sodium azide, 0.01% bromo-phenol blue, 33% glycerol. Ready to use; no need to heat, dilute or add reducing agents before use.
Protein Bands: 10kD, 14kD, 18kD, 22kD, 26kD, 33kD, 44kD and 70kD.
Double Intesity Bands: The 26kD, 18kD and 10kD bands are at double intensity to make location and size approximation of proteins easier.
Usage: Allow the marker to reach room temperature and mix thoroughly before use to ensure that any solids that may have precipitated at -20°C will go back into solution. Do not boil! Load the following volumes on SDS-PAGE gel:
Mini gels: 3-5ul/well
Large gel: 7ul/well
The loading volumes listed above are recommended for gels with thickness of 0.75-1mm. The loading volume should be doubled for 1.5mm thick gels.
Store at -20°C Stable for 6 months after receipt.