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Will 10 min boiling disrupt BS3 cross linking? - (Dec/22/2013 )



I am using BS3 as a cross-linker for my co-immunoprecipitation experiment but I have not been succesfull so far.

I know BS3 is a non cleavable cross-linker and the associations formed are described as: "are not easily broken"

Now I am wondering if boiling my samples (95°C) for 10' in SDS sample buffer will be sufficient to brake this bond or not..

Hopefully someone can help me out here?




It is Membrane-impermeable, allowing for cell surface labeling


Thank you for your response memari.


Yes, I know it is membrane-impermeable, but that has nothing to do with my question..

Will the bond, made by BS3, brake if I boil my sample with SDS for 10 minutes at 95°C?


Ideally, it should not brake, as the crosslinking is via covalent bonding, and covalent bonds are very strong. Practically also, I have used BS3 and it shows crosslinking even after boiling the protein sample. 


So I will have to use another cross-linker if I want to be able to brake this band after IP. Any suggestions of a comparable cross linker (membrane impermeable) that can be cleaved?


this may be what you are looking for: lomants reagent from thermo-pierce


i found that with google.


Thank you for your try mdfenko, but you just suggested a membrane permeable crosslinker..

There are tons of cross linkers available from pierce, that is why I am asking here if someone knows one from practice that is comparable to BS3, but cleavable ;)


BS3 is amine to amine crosslinker, if you just fill requirements of BS3 in crosslinker selection guide you find this-


In this two are cleavable, I have never used them, But you can try. DTSSP looks more closer to BS3.