Three types of C4 photosynthesis are known, differing both in the four‐carbon acids transported between mesophyll and bundle sheath cells, and the mechanism of decarboxylation in the bundle sheath cells

TLS Online TPP Program

#Id: 9719

#Unit 4. Cell Communication and Cell Signaling

Phosphorylated Dig1 and Dig2, relieves the inhibition of the Ste12 transcription factor.

TLS Online TPP Program

#Id: 9720

#Unit 4. Cell Communication and Cell Signaling

Activated Ste12, induces expression of proteins

involved in mating-specific cellular responses.

TLS Online TPP Program

#Id: 9956

#Unit 4. Cell Communication and Cell Signaling

Human genome encodes 19 different Wnt proteins, and essential for critical developmental events, including:

Brain development

Limb patterning

Organogenesis

Formation of osteoblasts

TLS Online TPP Program

#Id: 9957

#Unit 4. Cell Communication and Cell Signaling

Wnts are paracrine factors that make up a large family of cysteine-rich glycoproteins

TLS Online TPP Program

#Id: 9958

#Unit 4. Cell Communication and Cell Signaling

Structure of Wnt proteins 

22 cysteine residues, which form disulfide bridges that maintain a globular secondary structure.

TLS Online TPP Program

#Id: 9959

#Unit 4. Cell Communication and Cell Signaling

Wnt = wingless + integrated