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: 9285

#Section 2: General Biology

O2‐sensitive hemoprotein kinase FixL controls a regulatory cascade that activates transcription of nitrogen fixation genes

TLS Online TPP Program

#Id: 8515

#Section 3: Genetics, Cellular and Molecular Biology

Kinesin-1 

is regulated by a 

head-to-tail interaction

TLS Online TPP Program

#Id: 8898

#Section 3: Genetics, Cellular and Molecular Biology

If Amphitelic attachment occur  Microtubules pull kinetochores; cohesins resist this pulling force. The resulting tension leads to the outer kinetochore component Ndc80 being pulled away from the protein kinase Aurora B

TLS Online TPP Program

#Id: 8339

#Section 3: Genetics, Cellular and Molecular Biology

Filament capping proteins:

CapZ blocks (+)end Tropomodulin blocks (-)end

TLS Online TPP Program

#Id: 8881

#Section 3: Genetics, Cellular and Molecular Biology

Plk1 is critical for formation of the mitotic spindle as well as for chromosome segregation.