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TLS Online TPP Program

#Id: 6367

This 21-bp sequence is twofold symmetric and is recognized by two subunits of Lac repressor, one binding to each half-site



#Unit 2. Cellular Organization #CELL CYCLE #Part B Pointers
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TLS Online TPP Program

#Id: 375

#Unit 2. Cellular Organization

Circular DNA molecules purified from both bacteria and eukaryotes are usually negatively supercoiled, having values of s of approximately –0.06.
TLS Online TPP Program

#Id: 376

#Unit 2. Cellular Organization

How to calculate linking number?
TLS Online TPP Program

#Id: 377

#Unit 2. Cellular Organization

For negatively supercoiled circle W < 0 
For a positively coiled superhelix W > 0.

 
TLS Online TPP Program

#Id: 378

#Unit 2. Cellular Organization

Topological states of covalently closed, circular (ccc) DNA. 
TLS Online TPP Program

#Id: 379

#Unit 2. Cellular Organization

A conserved region found in every core histone, called the histone-fold domain HFD.
TLS Online TPP Program

#Id: 380

#Unit 2. Cellular Organization

The histone-fold domain is composed of three a-helical regions separated by two short unstructured loops.