In resting rod cells high cGMP concentration generated from GTP catalyzed by guanylyl cyclase.

TLS Online TPP Program

#Id: 2327

#Unit 3. Fundamental Processes

Each snRNP contains a single snRNA (100-300 nt) and several (20) proteins. The U4 and U6 snRNPs are usually found together as a di-snRNP (U4/U6) particle.

TLS Online TPP Program

#Id: 2328

#Unit 3. Fundamental Processes

U1 snRNA consist of four hairpins, one intron pairing strands and one sm binding domains.

TLS Online TPP Program

#Id: 2329

#Unit 3. Fundamental Processes

Once DNA has been melted, the trajectory of the individual strands within the enzyme is no longer constrained by the rigidity of the double helix, allowing DNA to make its 90° turn at the active site.

TLS Online TPP Program

#Id: 2330

#Unit 3. Fundamental Processes

There are RNA polymerase crystal structures that provide considerable insight into how the enzyme retains contact with its substrate while breaking and remaking bonds in the process of the nucleotide addition cycle and undergoing translocation by a Brownian ratchet mechanism.

TLS Online TPP Program

#Id: 2331

#Unit 3. Fundamental Processes

Unlike the other elements within the promoter, the UP-element is not recognized by s but is recognized by a carboxy-terminal domain of the subunit, called the aCTD .

TLS Online TPP Program

#Id: 2332

#Unit 3. Fundamental Processes

The aCTD is connected to the aNTD by a flexible linker.