WASp activation requires two signals (This type of two-signal input, called coincidence detection):

1. regulatory phospholipid PIP2

2. small GTP-binding protein Cdc42

TLS Online TPP Program

#Id: 7928

#Section 3: Genetics, Cellular and Molecular Biology

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: 8875

#Section 3: Genetics, Cellular and Molecular Biology

Pin1 and Plk1 modify and phosphorylate Cdc25C to stimulate its phosphatase activity

TLS Online TPP Program

#Id: 8185

#Section 3: Genetics, Cellular and Molecular Biology

Two types of plant peroxisomes:

Present in leaves - participates in photorespiration.

Present in germinating seeds (glyoxysomes) - converts fatty acids into sugars.

TLS Online TPP Program

#Id: 10320

#Section 2: General Biology

The tumor cells may acquire additional oncogenic mutations that allow them to escape the immune system.

TLS Online TPP Program

#Id: 10298

#Section 2: General Biology

T-cell education