Each polypeptide chain consists of a backbone that is adorned with a variety of chemical side chains. This polypeptide backbone is formed from a repeating sequence of the core atoms (_________) found in every amino acid.
–N–C–C–
举一反三
- The spatial conformation of a protein mainly depends on A: α-helix and β-sheet B: the sequence of amino acids in polypeptide chain C: disulfide bonds in polypeptide chain D: hydrophobic effects in polypeptide chain E: hydrogen bonds in polypeptide chain
- The region of a protein that associates with a ligand, known as its binding site, usually consists of a _____ in the protein surface formed by a particular arrangement of amino acid side chains.
- For a typical protein length of 300 amino acids, more than ______ different polypeptide chains could theoretically be made
- A β sheet is made when ______________ form between segments of a polypeptide chain that lie side by side.
- The spacial conformation of protein is mainly determined by: () A: the<br/>sequence of amino acid B: α-helix<br/>and β-pleated sheets C: the<br/>side chain of amino acid in the peptide D: peptide<br/>bond in the peptide chain E: the<br/>location of disulfide bond in the peptide chain
内容
- 0
Which part of translation involves the addition of amino acids to an existing polypeptide chain? A: initiation B: elongation C: termination D: transcription
- 1
One can predict the amino acid sequence of a protein from the nucleotide sequence of its gene.
- 2
An α helix is generated when a single polypeptide chain turns around itself to form a structurally rigid _______.
- 3
Covalent modifications added to a protein’s amino acid side chains can control the location and function of the protein and can serve as docking sites for other proteins.
- 4
The information encoded in DNA resides in() A: phosphates in<br/>the backbone B: sugars in the<br/>backbone C: the DNA base<br/>sequence D: the sugars and<br/>phosphate groups together