Cytokine receptors are stably associated with one or two of the four known JAKs:

JAK1, JAK2, JAK3, and Tyk2

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#Id: 1150

#Unit 7. System Physiology – Animal

Mesangial cells are contractile and play a role in the regulation of glomerular filtration. 

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#Id: 6558

#Unit 7. System Physiology – Animal

In A cells, preproglucagon is processed primarily to glucagon and major proglucagon fragment (MPGF)

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#Id: 3338

#Unit 6. System Physiology – Plant

F1 has nine subunits of five different types, with the composition α₃ β₃ ϒδε

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#Id: 8803

#Unit 6. System Physiology – Plant

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#Id: 2203

#Unit 10. Ecological Principles

Many restored habitats have greater biodiversity and ecosystem services than degraded habitats.