MED21 Overexpression Lysate


Western Blot: MED21 Overexpression Lysate (Adult Normal) [NBL1-12986] Left-Empty vector transfected control cell lysate (HEK293 cell lysate); Right -Over-expression Lysate for MED21.

Product Details

Reactivity HuSpecies Glossary
Applications WB

Order Details

MED21 Overexpression Lysate Summary


MED21 Transient Overexpression Lysate

Expression Host: HEK293T

Plasmid: RC202763

Accession#: NM_004264

Protein Tag: C-MYC/DDK

You will receive 1 vial of lysate (100ug), 1 vial of empty vector negative control (100ug), and 1 vial of 2xSDS sample buffer (250ul). Each vial of cell lysate contains 100ug of total protein (at 1 mg/ml). The 2xSDS Sample Buffer consists of 4% SDS, 125mM Tris-HCl pH6.8, 10% Glycerol, 0.002% Bromophenol blue, 100mM DTT.


  • Western Blot
Application Notes
This product is intended for use as a positive control in Western Blot.

Each vial of cell lysate contains 100ug of total protein which should be sufficient for 20-50 reactions. Depending on over-expression level, antibody affinity and detection system, some lysates can go as low as 0.1 ug per load. We recommend starting with 5ug of cell lysate. Add an equal amount of cell lysate and 2X SDS Sample buffer and boil the SDS samples for 10 minutes before loading.
Theoretical MW
15.4 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Packaging, Storage & Formulations

Store at -80C. Avoid freeze-thaw cycles.
RIPA buffer

Lysate Details for Array



HEK293T cells in 10-cm dishes were transiently transfected with a non-lipid polymer transfection reagent specially designed and manufactured for large volume DNA transfection. Transfected cells were cultured for 48hrs before collection. The cells were lysed in modified RIPA buffer (25mM Tris-HCl pH7.6, 150mM NaCl, 1% NP-40, 1mM EDTA, 1xProteinase inhibitor cocktail mix, 1mM PMSF and 1mM Na3VO4, and then centrifuged to clarify the lysate. Protein concentration was measured by BCA protein assay kit.This product is manufactured by and sold under license from OriGene Technologies and its use is limited solely for research purposes.

Alternate Names for MED21 Overexpression Lysate

  • hSrb7
  • mediator complex subunit 21SRB7 (suppressor of RNA polymerase B, yeast) homolog
  • RNA polymerase II complex component SRB7
  • RNA polymerase II holoenzyme component SRB7
  • RNAPII complex component SRB7
  • SRB7 suppressor of RNA polymerase B homolog
  • SRB7SRB7 suppressor of RNA polymerase B homolog (yeast)
  • SURB7mediator of RNA polymerase II transcription subunit 21


MED21 is a component of the Mediator complex, a coactivator involved in the regulated transcription of nearly all RNA polymerase II-dependent genes. Mediator functions as a bridge to convey information from gene-specific regulatory proteins to the basal RNA polymera


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Lysates are guaranteed for 6 months from date of receipt.

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Video Protocols

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Gene Symbol MED21