Repression-Trp aporepressor dimer binds high tryptophan, changes conformation with high affinity for trp operator

Tryptophan is a corepressor

TLS Online TPP Program

#Id: 8139

#Unit 2. Cellular Organization

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: 8140

#Unit 2. Cellular Organization

Anterograde transport

COPII vesicles = ER to Golgi

TLS Online TPP Program

#Id: 8141

#Unit 2. Cellular Organization

Anterograde transport through the golgi occurs by cisternal maturation

TLS Online TPP Program

#Id: 8142

#Unit 2. Cellular Organization

Retrograde transport

COPI vesicles = cis-Golgi to ER

TLS Online TPP Program

#Id: 8143

#Unit 2. Cellular Organization

Vesicle Type- COPII

Transport - ER to cis-Golgi 

Coat Proteins - Sec23/Sec24 and Sec13/Sec31, Sec16

Associated GTPase- Sar1

TLS Online TPP Program

#Id: 8144

#Unit 2. Cellular Organization

Vesicle Type- COPI

Transport - cis-Golgi to ER

Coat Proteins – Coatomers

Associated GTPase- ARF