In vertebrate smooth muscle, phosphorylation of the myosin regulatory light chain activates contraction in Ca2+ dependent manner.

TLS Online TPP Program

#Id: 2390

#Unit 3. Fundamental Processes

Binding of SR proteins to ESEs promotes or stabilizes U1 binding to the 5’ splice site and U2AF binding to the 3’ splice site.

TLS Online TPP Program

#Id: 8156

#Unit 2. Cellular Organization

Two different kinds of sorting signals:

Membrane cargo proteins carry cytoplasmic sorting signals

Soluble cargo proteins carry luminal sorting signals

TLS Online TPP Program

#Id: 2504

#Unit 13. Methods in Biology

IEF is a highly sensitive analytical technique and is particularly useful for studying  microheterogeneity in a protein. For example, a protein may show a single band on an SDS gel but may show three bands on an IEF gel. This may occur, for example, when a protein exists in mono-, di- and tri-phosphorylated forms. 

TLS Online TPP Program

#Id: 1173

#Unit 7. System Physiology – Animal

There are two types of photoreceptors:

Rods 

Cones

TLS Online TPP Program

#Id: 10453

#Unit 4. Cell Communication and Cell Signaling

Translocation between chromosomes 22 and 9 form new oncogenic fusion protein - BCR-ABL hybrid protein kinase