Co and N atoms of the peptide grouping are both in planar sp2 hybridization and the Co and O atoms are linked by a p bond, leaving the nitrogen with a lone pair of electrons in a 2p orbital.

TLS Online TPP Program

#Id: 2271

#Unit 3. Fundamental Processes

Sigma factors of E.Coli

TLS Online TPP Program

#Id: 2272

#Unit 3. Fundamental Processes

The seven subunits of sigma subunits of E.Coli

TLS Online TPP Program

#Id: 2273

#Unit 3. Fundamental Processes

The lac promoter along with the bulk of other E. coli promoters, is recognized by RNA polymerase bearing the σ70 subunit.

TLS Online TPP Program

#Id: 2274

#Unit 3. Fundamental Processes

E. coli encodes several other s subunits that can replace σ 70 under certain circumstances.

a.σ 32 

b.σ 54

TLS Online TPP Program

#Id: 2275

#Unit 3. Fundamental Processes

The subunits of RNA Polymerases

TLS Online TPP Program

#Id: 2276

#Unit 3. Fundamental Processes

Template and transcript within the RNA polymerase elongating complex