Three major types of coated vesicles involved in protein trafficking:

1. COPII vesicles

2. COPI vesicles 

3. Clathrin-coated vesicles

TLS Online TPP Program

#Id: 10332

#Section 2: General Biology

TLS Online TPP Program

#Id: 8879

#Section 3: Genetics, Cellular and Molecular Biology

This combination of two positive feedback loops:

one that activates a CDK1 activator (Cdc25C)

one that inhibits a CDK1 inhibitor (Wee1)

results in the abrupt and irreversible transition from G2 into mitosis.

TLS Online TPP Program

#Id: 7949

#Section 3: Genetics, Cellular and Molecular Biology

A branched oligosaccharide containing

3 glucose (Glc)

9 mannose (Man)

2 N-acetylglucosamine (GlcNAc)

Glc3Man9(GlcNAc)2

TLS Online TPP Program

#Id: 8867

#Section 3: Genetics, Cellular and Molecular Biology

Cdc25B is act as a starter phosphatase that initiates CDK1 activation

Cdc25C is the workhorse phosphatase that activates the vast majority of cyclin-CDK1 complexes

TLS Online TPP Program

#Id: 8618

#Section 3: Genetics, Cellular and Molecular Biology

Cdc25 phosphatase Activates CDKs in fission yeast