Human Lumican, His Tag (LUM-H5227) is expressed from human 293 cells (HEK293). It contains AA Gln 19 - Asn 338 (Accession # NP_002336).
Predicted N-terminus: Gln 19
This protein carries a polyhistidine tag at the C-terminus.
The protein has a calculated MW of 37.5 kDa. The protein migrates as 50-60 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
Less than 1.0 EU per μg by the LAL method.
>95% as determined by reduced SDS-PAGE.
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization.
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Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
Human Lumican, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.
Lumican (LUM) is also known as Keratan sulfate proteoglycan lumican, KSPG lumican,LDC and SLRR2D, which belongs to the small leucine-rich proteoglycan (SLRP) family and SLRP class II subfamily. LUM /Lumican is present in the extracellular matrix of human articular cartilage at all ages, although its abundance is far greater in the adult. In the adult cartilage LUM /Lumican exists predominantly in a glycoprotein form lacking keratan sulfate, whereas the juvenile form of the molecule is a proteoglycan. LUM participates in the maintenance of tissue homeostasis and modulates cellular functions including cell proliferation, migration, and differentiation. The expression of LUM has been correlated to the growth and metastasis of various malignancies.