Cohesin-mediated cohesion between sister chromatids is established by a two-step process:

1.Loading and unloading of cohesins

2. Stabilization of cohesins

TLS Online TPP Program

#Id: 8174

#XL - Q Biochemistry

Sets of SNARE Proteins responsible for the eventual fusion of a vesicle with the target membrane:

Vesicle-specific membrane protein, v-SNARE

Target membrane contains t-SNARE

TLS Online TPP Program

#Id: 10338

#XL - Q Biochemistry

Step involve in formation of mature B-cell

TLS Online TPP Program

#Id: 9358

#XL - T Zoology

Active type I receptor kinase phosphorylates a Smad

TLS Online TPP Program

#Id: 8622

#XL - T Zoology

Cyclins are degraded through the action of two different E3-ligases:

1. SCF (Skp1, Cullin, and F-box proteins) 

2. APC/C or cyclosome

TLS Online TPP Program

#Id: 8153

#XL - Q Biochemistry

A second function of small GTPases in vesicle formation is in the pinching off of a completed vesicle from the parent membrane