Human Kallikrein 11 HEK293 Overexpression Lysate: Product Information
This Human Kallikrein 11 overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of Kallikrein 11 protein (Cat: 10767-H08H) from the overexpression lysate was verified.
A DNA sequence encoding the human KLK11 isoform 1 (NP_006844.1) (Met 1-Asn 250) with a C-terminal polyhistidine tag was expressed.
The secreted recombinant human KLKL11 comprises 243 amino acids with a predicted molecular mass of 27 kDa. As a result of glycosylation, rhKLK11 migrates as an approximately 40 kDa band in SDS-PAGE under reducing conditions.
Human Kallikrein 11 HEK293 Overexpression Lysate: Usage Guide
Cell lysate was prepared by homogenization of the over-expressed cells in ice-cold modified RIPA Lysis Buffer with cocktail of protease inhibitors (Sigma). Cell debris was removed by centrifugation. Protein concentration was determined by Bradford assay (Bio-Rad protein assay, Microplate Standard assay). The cell lysate was boiled for 5 min in 1 x SDS loading buffer (50 mM Tris-HCl pH 6.8, 12.5% glycerol, 1% sodium dodecylsulfate, 0.01% bromophenol blue) containing 5% b-mercaptoethanol, and lyophilized.
1. Centrifuge the tube for a few seconds and ensure the pellet at the bottom of the tube.
2. Re-dissolve the pellet using 200μL pure water and boil for 2-5 min.
1 X Sample Buffer (1 X modified RIPA buffer+1 X SDS loading buffer).
Stability & Storage
Store at 4℃ for up to twelve months from date of receipt. After re-dissolution, aliquot and store at -80℃ for up to twelve months. Avoid repeated freeze-thaw cycles.
Western Blot (WB) Optimal dilutions/concentrations should be determined by the end user.
Human Kallikrein 11 HEK293 Overexpression Lysate: Alternative Names
Human KLK11 Overexpression Lysate; Human PRSS20 Overexpression Lysate; Human TLSP Overexpression Lysate
Kallikrein 11 Background Information
kallikrein-related peptidase 11 (KLK11), also known as hippostasin, trypsin-like serine protease and PRSS2, is a member of human tissue kallikrein family. It is a subgroup of serine proteases with diverse physiological functions, which is implicated in carcinogenesis and some with potential that serving as novel biomarkers for ovarian and prostate cancer and other diseases. The KLK11 gene is one of the fifteen kallikrein subfamily members located in a cluster on chromosome 19. Two alternatively spliced forms exist, resulting in 25 (isoform 1) and 282 (isoform 2) amino acid sequences. Isoform 2 is identical to isoform 1, except for an inserted 32 amino acid segment. Isoform 1 is predominantly expressed in brain whereas isoform 2 is preferentially expressed in prostate.
kallikrein-related peptidase 11
Yoshida S., et al.,(1998), cDNA cloning and expression of a novel serine protease, TLSP. Biochim. Biophys. Acta 1399:225-228.
Mitsui S., et al., (2000), A novel isoform of a kallikrein-like protease, TLSP/hippostasin, (PRSS20), is expressed in the human brain and prostate.Biochem. Biophys. Res. Commun. 272:205-211.
Yousef G.M., et al.,(2000), Genomic organization, mapping, tissue expression, and hormonal regulation of trypsin-like serine protease (TLSP PRSS20), a new member of the human kallikrein gene family.Genomics 63:88-96.
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