Lipid modifications of Wnt are catalyzed by the O-acetyltransferase Porcupine.

TLS Online TPP Program

#Id: 8665

#Unit 10. Ecological Principles

Lack of environmental constraints hypothesis suggests preadaptation of some invaders to existing environmental conditions.

With few limitations to many abiotic environments, these invaders can grow quickly and outcompete native species

TLS Online TPP Program

#Id: 1511

#Unit 2. Cellular Organization

Tubulin dimers in which the β-subunit has bound GTP are added preferentially to (+) end of the microtubule.

TLS Online TPP Program

#Id: 1461

#Unit 4. Cell Communication and Cell Signaling

CAMs fall into one of four major families: 

• Cadherins

• Immunoglobulin (Ig) superfamily

• Integrins

• Selectins

TLS Online TPP Program

#Id: 5007

#Unit 6. System Physiology – Plant

The stimulation of de-etiolation by phyA depends on the photostationary state of phytochrome.

TLS Online TPP Program

#Id: 10018

#Unit 4. Cell Communication and Cell Signaling

The phosphorylated Ci is proteolytically cleaved by the ubiquitin-proteasome pathway, generating an N-terminal fragment Ci75, which functions as a transcriptional repressor of Hh target genes.