Muscle cells have an abundant, modified smooth ER called the sarcoplasmic reticulum.

The release and reuptake of Ca2+ by the sarcoplasmic reticulum trigger myofibril contraction and relaxation, respectively

TLS Online TPP Program

#Id: 6811

#Unit 3. Fundamental Processes

TLS Online TPP Program

#Id: 6812

#Unit 3. Fundamental Processes

RdRP has not yet been identified in mammalian cells, and high efficiency there likely results from the fact that slicing is catalytic— that is, each RISC can cleave several mRNAs.

TLS Online TPP Program

#Id: 6850

#Unit 3. Fundamental Processes

TLS Online TPP Program

#Id: 6851

#Unit 3. Fundamental Processes

SANT-domain-containing proteins interact preferentially with unmodified histone tails.

TLS Online TPP Program

#Id: 6852

#Unit 3. Fundamental Processes

TLS Online TPP Program

#Id: 6853

#Unit 3. Fundamental Processes