
(a)
To determine: A single amino acid from each pair which is more likely to be found in the interior of the protein molecule. The pairs are as follows:
- Alanine; glycine.
- Glutamate; aspartate.
- Tyrosine; phenylalanine.
- Methionine; cysteine.
Introduction: The protein is the building block of the body. The long chains of amino acids are joined together by means of “peptide bonds.” The process of synthesis of proteins takes place by the process of translation which uses a “template strand” in the synthesis of protein strands. The mRNA guides the synthesis of the protein molecules.
(b)
To explain: The localization of cysteine residues with free sulfhydryl groups on the exterior surface of the protein molecule and the presence of cysteine molecules with disulfide bonds to the interior side of the protein.
Introduction: The protein is the building block of the body. The long chains of amino acids are joined together by means of “peptide bonds.” The process of synthesis of proteins takes place by the process of translation which uses a “template strand” in the synthesis of protein strands. The mRNA guides the synthesis of the protein molecules.

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Chapter 3 Solutions
Becker's World of the Cell (9th Edition)
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- The following figure is from Caterina et al. The capsaicin receptor: a heat activated ion channel in the pain pathway. Nature, 1997. Black boxes indicate capsaicin, white circles indicate resinferatoxin. a) Which has a higher potency? b) Which is has a higher efficacy? c) What is the approximate Kd of capsaicin in uM? (you can round to the nearest power of 10)arrow_forwardWhat is the rate-limiting-step for serotonin synthesis?arrow_forwardWhat enzyme is necessary for synthesis of all of the monoamines?arrow_forward
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