JAK kinases phosphorylate several tyrosine residues on the cytosolic domain of the cytokine receptor.

TLS Online TPP Program

#Id: 9132

#Unit 10. Ecological Principles

Some parasitoids themselves serve as hosts for other parasitoids, which are known as hyperparasitoids.

TLS Online TPP Program

#Id: 3642

#Unit 3. Fundamental Processes

The Class I enzymes share two homologous polypeptide segments that are components of a dinucleotide-binding fold (Rossmann fold, which is also present in many NAD+- and ATP-binding proteins.

TLS Online TPP Program

#Id: 3271

#Unit 3. Fundamental Processes

Chemicals that are found to be mutagenic in the Ames test can then be tested for their potential carcinogenic effects in animals.

TLS Online TPP Program

#Id: 8859

#Unit 2. Cellular Organization

During G1, 

cohesins associate with chromosomes by cohesin loading factors Scc2 and Scc4 and unloaded continuously by a cohesin associated complex Pds5 and Wap1 proteins. 

TLS Online TPP Program

#Id: 3034

#Unit 3. Fundamental Processes

The core on the leading strand is processive because its clamp keeps it on the DNA.