Protein stability is the net balance of forces, which determine whether a protein will be in its native folded conformation or a denatured state.

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#Unit 13. Methods in Biology

Type I restriction endonucleases cleave the DNA about 1000 bp away from the 5'-end of the sequence "TCA" located within the recognition site.

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#Unit 7. System Physiology – Animal

Between heartbeats, influx of positively charged sodium ions causes a slow rise in the resting membrane potential in the positive direction. 

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#Unit 4. Cell Communication and Cell Signaling

The activities of GPK and GP are inhibited by a phosphatase called phosphoprotein phosphatase.

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#Unit 3. Fundamental Processes

In about half the polypeptides, the methionine at the terminus is removed by an aminopeptidase, which creates a new terminus from R2 (originally the second amino acid incorporated into the chain). When both steps are necessary, they occur sequentially. The removal reaction(s) occur rather rapidly when the nascent polypeptide chain has reached a length of 15 amino acids.

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#Unit 3. Fundamental Processes

Four TAFs do have some intrinsic DNA binding ability: TAF4b, TAF12, TAF9, and TAF6 are (distant) homologs of histones H2A, H2B, H3, and H4, respectively.  TAF4b/TAF12 and TAF9/TAF6 form heterodimers using the histone fold motif