Sandbox Reserved 1806: Difference between revisions
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The secondary structure of a protein contains regions of amino acid chains that are stabilized by hydrogen bonds which create alpha-helix and beta-pleated sheets. For Pyrrolysine tRNA synthetase, the <scene name='95/954103/Secondary_structure/1'>secondary structure</scene> has 2 domains, one called the N-terminal and the other being the C-terminal. Pyrrolysine is a modified lysine with a 4-methylpyrroline-5-carboxylate group linked by an amide to the ɛ-amino group. Pyrrolysine is lysine in which has a pyrroline ring linked to the end of the lysine side chain. | The secondary structure of a protein contains regions of amino acid chains that are stabilized by hydrogen bonds which create alpha-helix and beta-pleated sheets. For Pyrrolysine tRNA synthetase, the <scene name='95/954103/Secondary_structure/1'>secondary structure</scene> has 2 domains, one called the N-terminal and the other being the C-terminal. Pyrrolysine is a modified lysine with a 4-methylpyrroline-5-carboxylate group linked by an amide to the ɛ-amino group. Pyrrolysine is lysine in which has a pyrroline ring linked to the end of the lysine side chain. | ||
The ''tertiary structure | The <scene name='95/954103/Pylrs_tertiary_structure/1'>tertiary structure</scene> of a protein is the overall 3D structure of the protein. The protein is stabilized by outside polar hydrophilic hydrogen and ionic bond interactions, and internal hydrophobic interactions between non-polar amino acid side chains. | ||
The ''quaternary structure'' of a protein is when several protein chains or subunits are packed altogether. Each of the protein chains or subunits have their own primary, secondary, and tertiary structure and are held together by van der Waals forces and hydrogen bonds between nonpolar side chains. | The ''quaternary structure'' of a protein is when several protein chains or subunits are packed altogether. Each of the protein chains or subunits have their own primary, secondary, and tertiary structure and are held together by van der Waals forces and hydrogen bonds between nonpolar side chains. | ||
