Western Blot: Difference between revisions

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==Goal==
==Goal==
*
*
To extract protein samples from the bacterial host, run them through an SDS-PAGE gel, and use antibodies to detect specific proteins in the size-separated protein samples. This technique is useful for confirming the presence of a particular protein inside or outside of the bacterial host.
To extract protein samples from <i>E. coli</i>, run them through an SDS-PAGE gel, and use antibodies to detect specific proteins in the size-separated protein samples. This technique is useful for confirming the presence of a particular protein inside or outside of <i>E. coli</i>.


==Protocol==
==Protocol==


===<u>Day 1</u>===
===<u>Day 1</u>===
====Induction and Overnight Incubation of Bacterial Culture====
====Induction and Overnight Incubation of <i>E. coli</i> Culture====
1. Grab however many erlenmeyer flasks you need for the experiment (including one for the negative control)
 
2.
 
3.


===<u>Day 2</u>===
===<u>Day 2</u>===

Revision as of 21:59, 11 May 2023

Goal

To extract protein samples from E. coli, run them through an SDS-PAGE gel, and use antibodies to detect specific proteins in the size-separated protein samples. This technique is useful for confirming the presence of a particular protein inside or outside of E. coli.

Protocol

Day 1

Induction and Overnight Incubation of E. coli Culture

1. Grab however many erlenmeyer flasks you need for the experiment (including one for the negative control)

2.

3.

Day 2

Obtaining Supernatant and Lysate Samples from Bacterial Culture

Running an SDS-PAGE on Supernatant/Lysate Samples

Transferring the SDS-PAGE Gel to the Membrane

Day 3

Primary Antibody Staining (Overnight)

Day 4

Secondary Antibody Staining

Imaging the Blot