For an inversion to take place, the chromosome must break in two places.

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#Id: 2864

#Unit 13. Methods in Biology

A number of amino acids (Asp, Glu, Asn, Gln, Arg and His) have weak electronic transitions at around 210 nm Usually, these cannot be observed in proteins because they are masked by the more intense peptide bond absorption.

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#Id: 7789

#Unit 2. Cellular Organization

Nuclear transport receptor

A general class of proteins that facilitate protein transport into or out of the nucleus by binding to a nuclear import sequence or a nuclear export sequence

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#Id: 1726

#Unit 4. Cell Communication and Cell Signaling

When membrane-bound CD23 binds to soluble IgE, further IgE synthesis is suppressed.

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#Id: 2309

#Unit 3. Fundamental Processes

Comparisons of the sequences of several bacterial sigma factors suggested conserved regions in E. coli s70  that interact directly with promoters DNA-binding regions of the sigma factor fold into independent domains in the protein regions 1.2, 2.3– 2.4, 3.0, and 4.1–4.2.

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#Id: 6599

#Unit 7. System Physiology – Animal

FSH and LH stimulate sex hormone synthesis by the activation of the cyclic adenosine monophosphate second messenger system