Ubiquitin-mediated protein degradation is a complex process, and many of the signals remain unknown.  One known signal involves recognition of amino acids in a processed protein that are either stabilizing (Ala, Gly, Met, Ser, etc.) or destabilizing (Arg, Asp, Leu, Lys, Phe, etc.), and are located at:

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#Question id: 10806

#Section 6: Plant, Animal and Microbial Biotechnology

HCN is a fast-acting toxin that inhibits

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#Question id: 366

#Section 4: Fundamentals of Biological Engineering

What is the pH of a solution with a hydroxyl ion (OH-) concentration of 10-10 M?

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#Question id: 1310

#Section 3: Genetics, Cellular and Molecular Biology

In some tissues subject to mechanical stress, special junctions which connect the cytoskeletons of adjacent cells.

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#Question id: 221

#Section 2: General Biology

Which statement is false about 5,6,7,8-tetrahydrobiopterin?

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#Question id: 8917

#Section 6: Plant, Animal and Microbial Biotechnology

The Hox genes came to regulate each of the following in what sequence, from earliest to most recent?

1. identity and position of paired appendages in protostome embryos

2. formation of water channels in sponges

3. anterior-posterior orientation of segments in protostome embryos

4. positioning of tentacles in cnidarians

5. anterior-posterior orientation in vertebrate embryos