TEMED catalyzes the decomposition of the persulfate ion to give a free radical (i.e., a molecule with an unpaired electron):

TLS Online TPP Program

#Id: 8190

#Unit 2. Cellular Organization

Peroxins

Catalyse peroxisomal protein import by ATP hydrolysis.

TLS Online TPP Program

#Id: 8191

#Unit 2. Cellular Organization

PTS1 signals are recognized by the peroxin Pex5 receptor

PTS2 signals are recognized by the peroxin Pex7 receptor

Neither targeting sequence is cleaved after import.

TLS Online TPP Program

#Id: 8192

#Unit 2. Cellular Organization

Catalase, are synthesized as precursors with PTS1

Thiolase, are synthesized as precursors with PTS2

TLS Online TPP Program

#Id: 8193

#Unit 2. Cellular Organization

Pex5 forms a multimeric complex with the Pex14 receptor located on the peroxisomal membrane. 

TLS Online TPP Program

#Id: 8194

#Unit 2. Cellular Organization

After assembly of the matrix protein-Pex5-Pex14 complex, the matrix protein dissociates from Pex5 and is released into the peroxisomal matrix.

TLS Online TPP Program

#Id: 8195

#Unit 2. Cellular Organization

A Pex 2, Pex 10, and Pex 12 complex embedded in the peroxisomal membrane transfers Ubiquitin to two embedded Pex 5 receptors.