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Human CTRL-1 / CTRL / Chymotrypsin-like protease HEK293 Cell Lysate (WB positive control)

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Human CTRL Transfected / Overexpression Cell Lysate Product Information
Expressed Host:Human Cells
Product Description:Human Cell lysate that Human CTRL-1 / CTRL / Chymotrypsin-like protease transfected / overexpressed for Western blot (WB) positive control. The whole cell lysate is provided in 1X Sample Buffer (1X modified RIPA buffer+1X SDS loading buffer).
Sequence information:A DNA sequence encoding the human CTRL (P40313) (Met1-Asn264) was expressed with a polyhistidine tag at the C-terminus.
Predicted N Terminal:Cys 19
Molecule Mass:The recombinant human CTRL consists of 257 amino acids and predicts a molecular mass of 27.6 KDa. It migrates as an approximately 35 and 32KDa band in SDS-PAGE under reducing conditions.
Species:Human
Human CTRL Transfected / Overexpression Cell Lysate Usage Guide
Preparation Method:Cell lysate was prepared by homogenization 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.
Quality Control Testing:12.5% SDS-PAGE Stained with Coomassie Blue after protein purification.
Stability:Samples are stable for up to twelve months from date of receipt.
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. 3. Store the lyophilized cell lysate at 4℃. After re-dissolution, recommend to aliquot it into smaller quantities and store at -80℃.
Storage Buffer:1 X Sample Buffer (1 X modified RIPA buffer+1 X SDS loading buffer).
Storage Instruction:Store at 4℃. After re-dissolution, aliquot and store at -80℃.
Application notes:Western blot (WB): Use at an assay dependent dilution.
Other Applications: Not tested.
Optimal dilutions/concentrations should be determined by the end user.
CTRL-1 / Chymotrypsin-like protease Background

CTRL-1, also known as chymotrypsin-like protease, belongs to the peptidase S1 family. CTRL-1 contains 1 peptidase S1 domain. Its expression is increased in preeclampsia (PE). Placental-derived chymotrypsin-like protease is responsible for inducing endothelial inflammatory phenotypic changes possibly by upregulation of cell adhesion molecule expressions, activation of cellular protease, and induction of extracellular regulated kinase phosphorylation. Activated microglia have been observed in various neurodegenerative diseases, including Alzheimer's disease (AD), Parkinson's disease (PD), amyotrophic lateral sclerosis, and multiple sclerosis. Five structurally distinct inhibitors that are known to inhibit chymotrypsin-like proteases were partially protective. They might represent a novel class of drugs with benefit in diseases where overactivity of microglia contributes to the pathogenesis.

Human CTRL-1 / Chymotrypsin-like protease References
  • Yang Gu. et al., 2009, Reprod Sci. 16 (9): 905-13.
  • Klegeris A. et al., 2005, Glia. 51 (1):56-64.
  • Caroline V. Bamford. et al., 2007, nfect Immun. 75 (9): 4364-72.
  • Size / Price
    Catalog: 13748-H08HL-300
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    Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"