In any particular cell, most genes are expressed at a low level

Only a small number of genes, whose products are specialized for the cell type, are highly expressed.

mRNAs expressed at low levels overlap extensively when different cell types are compared.

The abundantly expressed mRNAs are usually specific for the cell type.

TLS Online TPP Program

#Id: 2407

#Unit 3. Fundamental Processes

In the Pyrophosphorolytic editing, the enzyme uses its active site, in a simple back-reaction, to catalyze the removal of an incorrectly inserted ribonucleotide, by reincorporation of PPi.

TLS Online TPP Program

#Id: 2408

#Unit 3. Fundamental Processes

Hydrolytic editing, is the polymerase backtracks by one or more nucleotides and cleaves the RNA product, removing the error-containing sequence.

TLS Online TPP Program

#Id: 2409

#Unit 3. Fundamental Processes

Hydrolytic editing is stimulated by Gre factors, which both enhance hydrolytic editing function and serve as elongation stimulating factors.

TLS Online TPP Program

#Id: 2410

#Unit 3. Fundamental Processes

The Nus proteins—joins polymerase in the elongation phase and promotes.

TLS Online TPP Program

#Id: 2411

#Unit 3. Fundamental Processes

Both polymerase removal and repair enzyme recruitment are performed by a single protein called TRCF.

TLS Online TPP Program

#Id: 2412

#Unit 3. Fundamental Processes

TRCF has an ATPase activity.