Which technique allows one to purify proteins directly from organs (such as from gizzards)?
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A protein has a pI of 7, and is in a buffer at pH 5. What ty…
A protein has a pI of 7, and is in a buffer at pH 5. What type of column should it bind to?
In which expression system does T7 RNA polymerase enzyme tra…
In which expression system does T7 RNA polymerase enzyme transcribe the gene of interest on the plasmid into mRNA?
Which type of ELISA is most specific?
Which type of ELISA is most specific?
TARP protein (with domains A through D) was tested to determ…
TARP protein (with domains A through D) was tested to determine its ability to polymerize actin, which will then be found in the pellet after centrifugation. Which of the following is TRUE regarding TARP?
Hydrophobic interaction chromatography works because
Hydrophobic interaction chromatography works because
The advantage of the phage expression system over the Ptac e…
The advantage of the phage expression system over the Ptac expression system is that
What pH must you use to purify a protein with a pI of 4.2 vi…
What pH must you use to purify a protein with a pI of 4.2 via anion exchange chromatography?
A hydrophobic integral membrane protein is expressed in E. c…
A hydrophobic integral membrane protein is expressed in E. coli. After centrifugation, SDS-PAGE locates the protein in the pellet. Which chemical or technique would be best to solubilize this protein?
When the phage bacterial expression system is off,
When the phage bacterial expression system is off,