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Cross linking

Cross linking

1. (Science: chemistry) The linking of the chains of a polymer to one another so that the polymer, as a network, becomes stronger and more resistant to being dissolved.

2. (Science: molecular biology) The abnormal linking of two strands of dna by covalent bonds (as opposed to the normal hydrogen bonds between base pairs), which can occur by exposure to x-rays. Such linking is a type of damage to the dna molecule and must be repaired before the dna can replicate and function properly again.

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Re: help please 1

... in a membrane- What do they mean by amorphous in this case? - The cross-linking is so extensive that a bacterial cell can be viewed as being surrounded by a single ...

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by Stephen1993
Wed Feb 22, 2012 11:19 pm
Forum: Cell Biology
Topic: help please 1
Replies: 9
Views: 8914

Relationship between structure and function of glucoes

... form glycogen and not cellulose (ie because of it's ability to link and cross-link due to the -OH)? I mean the reason for only L-amino acids should be their way of linking. Am I correct?

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by Adz795
Tue Sep 13, 2011 12:53 pm
Forum: Molecular Biology
Topic: Relationship between structure and function of glucoes
Replies: 12
Views: 19734

Re: Restriction Digest Assignment Difficulty

... a false impression that it is bigger than it actually is? And the cross-linking of plasmids gives the impression that there are multiple fragment? (i.e. 1 plasmid ...

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by Cist
Sun Oct 31, 2010 6:40 pm
Forum: Molecular Biology
Topic: Restriction Digest Assignment Difficulty
Replies: 5
Views: 4603


... host. Basically, what happens in such inactivation event is permanent cross-linking of viral proteins, dissolution of the lipid membrane and/or splicing of the nucleic ...

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by biohazard
Fri Oct 29, 2010 9:47 am
Forum: Microbiology
Topic: Question about viruses (particularly hiv)
Replies: 25
Views: 57988

Running SDS PAGE for the first time!

... similar MW. In short, I have a protein (BSA) and that same protein cross-linked with a polymer (about 3kDa). The MW of BSA is about 67kDa; cross-linking may occur multiple times per protein but will usually max out at about 10 times (about ...

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by dhkwak
Tue Feb 23, 2010 8:24 am
Forum: Molecular Biology
Topic: Running SDS PAGE for the first time!
Replies: 9
Views: 6175
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