Increased Ca2+ levels activates Ca2+-dependent signaling molecules such as:

Protein kinase C, Ca2+/calmodulin-dependent protein kinase (CamKII), Calcineurin phosphatase

TLS Online TPP Program

#Id: 3408

#Unit 6. System Physiology – Plant

Most commonly, the ratio of PSII to PSI is about 1.5:1, but it can change when plants are grown in different light conditions.

TLS Online TPP Program

#Id: 1731

#Unit 4. Cell Communication and Cell Signaling

FcεRI signalling through Lyn and Syk kinases also activates E3 ubiquitin ligases, including c-Cbl. Cbl ubiquitinylates Lyn and Syk, as well as FcεRI itself, triggering their degradation.

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#Id: 10537

#Unit 4. Cell Communication and Cell Signaling

All neurotrophins also bind to a distinct type of receptor called p75NTR (NTR 5 neurotrophin receptor), but with lower affinity

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#Id: 7157

#Unit 5. Developmental Biology

Gray Crescent 

The region opposite the point of sperm entry, where the greatest displacement of cytoplasm occurs (Gastrulation will begin)

Vegetal rotation: Vegetal cells asymmetrically press up against the inner blastocoel roof on the dorsal side.

Bottle cell formation and invagination: Localized apical constriction at the dorsal blastopore lip creates anisotropic forces that foster invagination.

Involution and cell migration: The leading edge of invaginating cells crawls up onto the blastocoel roof.

Convergence and extension: The targeted medial-to-lateral intercalation of cells on the midline (convergence) drives anterior-posterior axis elongation (extension).

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#Id: 7167

#Unit 5. Developmental Biology