Two mechanisms for terminating cytokine signaling:

1. Short-term regulation: SHP1

2. Long-term regulation: SOCS proteins

TLS Online TPP Program

#Id: 8798

#Unit 6. System Physiology – Plant

TLS Online TPP Program

#Id: 4610

#Unit 13. Methods in Biology

Normal cells treated with sodium chromate allowed to absorb and induced to death signals as T-CTLs Death of the target cells is indicated by the release of 51Cr into the supernatant

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#Id: 8580

#Unit 2. Cellular Organization

In humans, three genes encode lamins: 

Lamins A and C (alternatively spliced gene) 

Lamins B1 and B2

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#Id: 9314

#Unit 4. Cell Communication and Cell Signaling

3 or 4 cGMP molecules must bind to each channel in order to open it; because of this cooperative allosteric interaction, channel opening is very sensitive to small changes in cGMP levels.

TLS Online TPP Program

#Id: 9232

#Unit 6. System Physiology – Plant

In photosynthesis, the relationship of O2 evolved to CO2 taken up is 1:1. 

In photorespiration, 3 O2 are taken up for every CO2 evolved.