Integrin exist in two conformations: 

Inactive, low-affinity, “bent” conformation  

Active, high-affinity, “extended” conformation

TLS Online TPP Program

#Id: 9961

#XL - T Zoology

Lipid modifications of Wnt are catalyzed by the 

O-acetyltransferase Porcupine.

TLS Online TPP Program

#Id: 10675

#XL - R Botany

TLS Online TPP Program

#Id: 10805

#XL - R Botany

Tannins deter feeding by herbivores

Plant tannins also serve as defenses against microorganisms.

For example, the nonliving heartwood of many trees contains high concentrations of tannins that help prevent fungal and bacterial decay

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#Id: 8882

#XL - T Zoology

The Aurora kinase family members Aurora A and Aurora B play key roles in mitotic spindle formation and in ensuring that chromosomes attach correctly to the mitotic spindle so that they are segregated accurately during mitosis.

TLS Online TPP Program

#Id: 8106

#XL - T Zoology

Galactolipids are localized in the thylakoid membranes (internal membranes) of chloroplasts; they make up 70% to 80% of the total membrane lipids of a vascular plant, and are therefore probably the most abundant membrane lipids in the biosphere.