Activation of β-adrenergic receptors causes activation of C subunits of PKA which phosphorylate PDE, stimulating its catalytic activity.

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#Id: 2074

#Unit 8. Inheritance Biology

Persons with Klinefelter syndrome have a Y chromosome and two or more X chromosomes in their cells such as XXY, XXYY, XXXY and XXXXY.

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#Id: 4668

#Unit 13. Methods in Biology

If the antibody preparation is polyclonal and has a range of affinities, Scatchard plot yields a curved line whose slope is constantly changing. The average affinity constant K0 can be calculated by determining the value of Ka when half of the binding sites are occupied (i.e., when r  1 in this example). In this graph, antiserum #3 has a higher affinity (K0  2.4  108) than antiserum #4 (K0  1.25  108)

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#Id: 7840

#Unit 1. Molecules and their Interaction Relevant to Biology

Stereoisomers that are mirror images of each other are called enantiomers

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#Id: 2835

#Unit 13. Methods in Biology

GST tagged protein are separated by using Glutathione (a tripeptide with a g-peptide linkage, g -Glu-Cys-Gly), displacing the bound GST moiety.

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#Id: 2429

#Unit 3. Fundamental Processes

Rho factor is an essential protein in E. coli that causes transcription termination.