Human FSTL5 HEK293 Overexpression Lysate

Cat: 13408-H08HL

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Human FSTL5 HEK293 Overexpression Lysate Product Information

Product Description
This Human FSTL5 overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of FSTL5 protein (Cat: 13408-H08H) from the overexpression lysate was verified.
Expression Host
HEK293 Cells
Species
Human
Sequence Information
A DNA sequence encoding the human FSTL5 (Q8N475) (Gln32-Ala847) was expressed with a polyhistidine tag at the C-terminus.
Molecule Mass
The recombinant human FSTL5 consists of 838 amino acids and predicts a molecular mass of 94.9 KDa. It migrates as an approximately 95 KDa band in SDS-PAGE under reducing conditions.

Human FSTL5 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.
Application
Western Blot (WB)
Optimal dilutions/concentrations should be determined by the end user.

FSTL5 Background Information

FSTL5 may have molecular function (calcium ion binding) and to localize in various compartments (cytoplasm, extracellular space, extracellular region). FSTL5 expression denoted a dismal prognosis both within and across medulloblastoma subgroups. FSTL5 gene is well expressed, 1.0 times the average gene in this release. The sequence of this gene is defined by 120 GenBank accessions from 113 cDNA clones, some from brain, cerebellum, eye, melanotic melanoma, skin, amygdala, breast and 24 other tissues. FSTL5 gene contains 27 distinct introns. The addition of FSTL5 immunohistochemistry to existing molecular stratification schemes constitutes a reliable and cost-effective tool for prognostication in future clinical trials of medulloblastoma.

Full Name
follistatin-like 5
References
  • Masuda T, et al. (2009) Laser capture microdissection and cDNA array analysis for identification of mouse KIAA/FLJ genes differentially expressed in the embryonic dorsal spinal cord. Brain Res. 1249:61-7.
  • Kingwell K. (2011) FSTL5--a new prognostic biomarker for medulloblastoma. Nat Rev Neurol. 7(11):598.
  • Remke M, et al. (2011) FSTL5 is a marker of poor prognosis in non-WNT/non-SHH medulloblastoma. J Clin Oncol. 29(29):3852-61.
  • Human Overexpression Lysate

    Product Name Cat.No.
    Human FSTL5 HEK293 Overexpression Lysate 13408-H02HL
    info info
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