PSD95 Antibody for Western Blots

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Anatomy and Neurobiology
University of California Irvine
Post-doctoral researcher

Company:

Thermo Fisher

Product Name:

Mouse anti-PSD95

Catalog Number:

MA1-046

Stress in vivo, and CRH application in vitro, cause dendritic spine loss in hippocampal pyramidal neurons. This loss of spines, and subsequent synapses, is likely the underlying mechanism through which severe stress disrupts learning and memory. CRH, in combination with neuronal activity and NMDA receptor activation, recruits the actin destabilizing protein, calpain, to break down the actin cytoskeleton resulting in spine loss. Identifying the downstream signaling from CRH receptors could reveal potential therapeutic targets for diseases such as post-traumatic stress disorder (PTSD), anxiety, and depression.

Experimental Design and Results Summary

Applications

Western Blot

Sample

Whole hippocampal cell lysate

Primary Incubation

1:2000

Blocking Agent

10% milk in PBS-Tween

Secondary Incubation

1:10,000

Tertiary Incubation

None

Detection

Thermo Fisher ECL Kit CAT#PI80196

Results Summary

Performed a co-immunoprecipitation with a CRH receptor type 1 and ionotropic glutamate receptors. I used PSD95 as a positive control for the WB and the PSD95 antibody produced two bands. One bad was at the proper weight, 95kDa and the second band was just under 75kDa.Used ECL kit to visualize and developed on Amersham Hyperfilm ECL (GE Healthcare CAT#28906837). Developing times: 12 mins, 10 mins, 8 mins, 4mins, and 2mins with 8 mins exposure being perfect.

Additional Notes

None

Related Categories

Image Gallery

Summary

The Good

Not too many unspecific bands

The Bad

Extra band at ~75kDa might be a cleavage product

The Bottom Line

Good antibody to try for WB for a synaptic marker. Very reliable and specific.

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