Phosphorylation by MEK at Y-185 and T-183 in activation loop of MAP kinase leads to a marked conformational change & promotes MAP kinase activation and dimerization.

TLS Online TPP Program

#Id: 708

#Unit 3. Fundamental Processes

seqA is part of a negative regulatory circuit that prevents origins from being remethylated.

TLS Online TPP Program

#Id: 8483

#Unit 1. Molecules and their Interaction Relevant to Biology

The central bond in this case is the peptide bond, where rotation is constrained. The peptide bond is normally (99.6% of the time) in the trans configuration, constraining  to a value of w=+_180. For a rare cis peptide bond, w=0.

TLS Online TPP Program

#Id: 774

#Unit 3. Fundamental Processes

RNA polymerase starts most transcripts with an A (75%) or G

TLS Online TPP Program

#Id: 2875

#Unit 13. Methods in Biology

According to the Beer–Lambert law, absorbance is linearly proportional to the concentration of chromophores.

TLS Online TPP Program

#Id: 9805

#Unit 6. System Physiology – Plant

In higher plants the phytochrome chromophore is a linear tetrapyrrole called phytochromobilin