Under ‘‘light conditions,’’ reduced thioredoxin cleaves the disulfide bonds of CP12 and phosphoribulokinase. 

The reduction of phosphoribulokinase and CP12 separates the

components of the ternary complex releasing the active phosphoribulokinase and the active A4B4-glyceraldehyde 3-phosphate dehydrogenase.

TLS Online TPP Program

#Id: 3662

#Unit 3. Fundamental Processes

Pyl is specified by the codon UAG (normally a Stop codon).

TLS Online TPP Program

#Id: 3663

#Unit 3. Fundamental Processes

The Wobble Base of the Anticodon Determines the Number of Codons a tRNA Can Recognize.

TLS Online TPP Program

#Id: 3664

#Unit 3. Fundamental Processes

Ribosomes are large ribonucleoprotein particles that contain more RNA than protein and dissociate into large and small subunits.

TLS Online TPP Program

#Id: 3665

#Unit 3. Fundamental Processes

Size comparisons show that the ribosome is large enough to bind tRNAs and mRNA.

TLS Online TPP Program

#Id: 3666

#Unit 3. Fundamental Processes

Aminoacyl-tRNA Formation Is Very Accurate, the frequency of mischarging is very low; typically, less than 1 in 1000 tRNAs is charged with the incorrect amino acid.

TLS Online TPP Program

#Id: 3667

#Unit 3. Fundamental Processes

Valyl-tRNA synthetase can sterically exclude isoleucine from its catalytic pocket because isoleucine is larger than valine.