Recombinant Human KLK8 Protein (C-6His)

Beta LifeScience SKU/CAT #: BL-1325NP
BL-1325NP: Greater than 95% as determined by reducing SDS-PAGE. (QC verified)
BL-1325NP: Greater than 95% as determined by reducing SDS-PAGE. (QC verified)

Recombinant Human KLK8 Protein (C-6His)

Beta LifeScience SKU/CAT #: BL-1325NP
Our products are highly customizable to meet your specific needs. You can choose options such as endotoxin removal, liquid or lyophilized forms, preferred tags, and the desired functional sequence range for proteins. Submitting a written inquiry expedites the quoting process.

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Product Overview

Description Recombinant Human Kallikrein 8 is produced by our Mammalian expression system and the target gene encoding Gln29-GLy260 is expressed with a 6His tag at the C-terminus.
Accession AAH40887.1
Synonym Kallikrein-8; hK8; Neuropsin; NP; Ovasin; Serine Protease 19; Serine Protease TADG-14; Tumor-Associated Differentially Expressed Gene 14 Protein; KLK8; NRPN; PRSS19; TADG14
Gene Background Kallikreins are a subgroup of serine proteases having diverse physiological functions. Growing evidence suggests that many Kallikreins are implicated in carcinogenesis and some have potential as novel cancer and other disease biomarkers. This gene is one of the fifteen Kallikrein subfamily members located in a cluster on chromosome 19. Its encoded protein is secreted and may play a role in suppression of tumorigenesis in breast and prostate cancers. Alternate splicing of this gene results in multiple transcript variants encoding the same protein.
Molecular Mass 26.04 KDa
Apmol Mass 35 KDa, reducing conditions
Formulation Supplied as a 0.2 μm filtered solution of 20mM Tris-HCl, 150mM NaCl, pH 8.0.
Endotoxin Less than 0.1 ng/µg (1 EU/µg) as determined by LAL test.
Purity Greater than 95% as determined by reducing SDS-PAGE. (QC verified)
Biological Activity Not tested
Reconstitution
Storage Store at ≤-70°C, stable for 6 months after receipt. Store at ≤-70°C, stable for 3 months under sterile conditions after opening. Please minimize freeze-thaw cycles.
Shipping The product is shipped on dry ice/polar packs. Upon receipt, store it immediately at the temperature listed below.
Usage For Research Use Only

FAQs

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.

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