chapter 5.1 Polypeptide Diversity
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What specifies the particular stepwise polymerization of amino acids in the order specified?
When proteins contain 40 residues or less, what are they called? What about when more than 40 residues?
The larges known polypeptide chain belongs to the 34,350-residue __________, giant (3816kD) protein that helps arrange the repeating structures of muscle fibers.
The vast majority of polypeptides contain between what amount of residues?
What kind of proteins contain several identical and/or nonidentical chains called subunits?
By the sequence of nucleotides in a gene.
100 to 1000
How is insulin formed?
What is the minium number for polypeptide chain to fold into a discrete and stable shape?
the protein is synthesized as a single polypeptide and later cleaved into two or more chains that remain associated, through sulfide bonds.
Because of the amino acid residues having characteristic chemical and physical properties, its presence at a particular position in a protein influences what? While this is part of it, what determines the characteristics of an individual protein?
The three-dimensional shape of a folded polypeptide chain is a consequence of the what?
The properties of that protein, the amino acid sequences.
Intramolecular forces among its various residues.
What are the factors that limit the size and composition of polypeptides?
- 1. The length of the polypeptide chain, at least 40 to be stable and can function properly.
- 2. Errors in transcription and translation as size increases.
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