Human Kallikrein 8 / KLK-8 Protein, His Tag (active enzyme, MALS verified)

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KL8-H52H3-100ug
$350.00
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KL8-H52H3-1mg (500ug X 2)
$2,500.00
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KL8-H52H3
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Synonyms

KLK8, Kallikrein-8, Neuropsin, Ovasin, NRPN, PRSS19, TADG14, NP, hK8

Source

Human Kallikrein 8 Protein, His Tag (KL8-H52H3) is expressed from human 293 cells (HEK293). It contains AA Gln 29 - Gly 260 (Accession # O60259).

Predicted N-terminus: Gln 29

Molecular Characterization

This protein carries a polyhistidine tag at the C-terminus.

The protein has a calculated MW of 26.8 kDa. The protein migrates as 32-35 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.

Endotoxin

Less than 1.0 EU per μg by the LAL method / rFC method.

Purity

>95% as determined by SDS-PAGE.

>90% as determined by SEC-MALS.

Formulation

Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 150 mM NaCl, pH8.5 with trehalose as protectant.

Contact us for customized product form or formulation.

Reconstitution

Please see Certificate of Analysis for specific instructions.

For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

Shipping and Storage

This product is shipped at ambient temperature.

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.

Introduction de fond

Kallikrein 8 (KLK8), also known as Neuropsin, PRSS19, or TADG-14, is a member of the human kallikrein-related peptidase family located on chromosome 19. It is a secreted serine protease with strong expression in the hippocampus, where it regulates synaptic plasticity, learning, and memory through cleavage of extracellular matrix proteins and neural adhesion molecules. KLK8 has also been implicated in skin physiology, including keratinocyte proliferation and desquamation. Abnormal expression of KLK8 has been reported in several cancers, such as ovarian and colorectal cancer, making it a potential biomarker and therapeutic target2.