Human Meprin beta HEK293 Overexpression Lysate


Human Meprin beta HEK293 Overexpression Lysate: Product Information

Product Description
This Human Meprin beta overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of Meprin beta protein (Cat: 10708-H08H) from the overexpression lysate was verified.
Expression Host
HEK293 Cells
Sequence Information
A DNA sequence encoding the human MEP1B (NP_005916.2) (Met1-Thr652) was expressed with a polyhistidine tag at the C-terminus.
Molecule Mass
The recombinant human MEP1B consists 641 amino acids and predicts a molecular mass of 73 kDa.

Human Meprin beta HEK293 Overexpression Lysate: Usage Guide

Preparation Method
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.
Lysis Buffer
Modified RIPA Lysis Buffer: 50 mM Tris-HCl pH 7.4, 150 mM NaCl, 1mM EDTA, 1% Triton X-100, 0.1% SDS, 1% Sodium deoxycholate, 1mM PMSF.
Recommend Usage
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.
Sample Buffer
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.

Meprin beta Background Information

Meprins are cell membrane, oligomeric metalloendopeptidases composed of two distinct but evolutionarily related subunits, alpha and beta.MEP1A mapped to the short arm of chromosome 6 by the use of radiation and somatic cell hybrids. More specifically, it is localized between the centromere and GSTA2 in 6p11-p12. MEP1B mapped to chromosome 18, by the use of somatic cell hybrids, in 18q12.2-q12.3, proximal to the TTR/PALB gene.
Full Name
meprin A, beta
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