Why is having flexible and unstructured regions of a protein important for the function of the protein?
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Why is having flexible and unstructured regions of a protein important for the function of the protein?
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- When a protein was denatured and lost its function due to its spatial structures were disrupted. Which of the following was disrupted during the denaturing process?what are the four levels of protein structure? what stabilizes each level of folding? what environmental factors affect protein folding?Why are binding sites in proteins often located at interdomain boundaries?
- Give an example of a protein containing primarily betapleated sheets. Is this a fibrous or globular protein?A particular DNA sequence encodes for MRNA that then encodes for the amino acid glutamate in a protein. A mutation occurs in the DNA that changes the MRNA codon for the glutamate into a different codon. Which change would cause the least disruption to the structure of the protein? Hint: Think about the nature of the various R groups (side-chains) of the amino acids, and how intermolecular forces/interactions govern the way a protein folds into its three-dimensional structure. The codon for the glutamate is changed into a stop codon. The codon for the glutamate is changed into the codon for aspartate. O The codon for the glutamate is changed into the codon for phenylalanine. O The codon for the glutamate is changed into the codon for serine.At what level of protein structure (primary, secondary, tertiary, or quaternary) will protein structure be initially altered? A mutation in the genetic sequence, which ultimately causes an amino acid to change(e.g. Trp – Asn – His turns into Trp – Arg – His) Dissolving a protein in a non-polar solvent (like oil) instead of water.
- Which protein structure is due to interactions between amino acid side-chains? tertiary, quaternary, secondary, or primary?What general structural feature is shared by proteins that specifically form homodimers (but not homotrimers, homoteramers etc)? Only one answer is correct. the surface consists of hydrophilic alpha-helix. the surface is highly modified by post-translational modification. the surface is permanently bound by chaperones. the surface is unstructured. the surface, or part of it, is self-complementary.Why are multifunctional proteins necessary and/ordesirable?