Sandbox 51: Difference between revisions

From Proteopedia
Jump to navigationJump to search
No edit summary
No edit summary
Line 100: Line 100:
Lysozyme contains both hydrophobic and hydrophilic regions ( <scene name='Sandbox_39/Hydrophobicity/2'>Hydrophobicity</scene> ). The hydrophilic effect, or the desire for proteins to be at a specific position regarding water, is the single most important determinant of protein folding. These regions can be displayed with the hydrophobic regions in gray and the polar, hydrophillic regions in purple. This coloration highlights the location of these regions, showing that the majority of the hydrophobic regions are inside of the protein and that the majority of the hydrophillic regions are on the outside of the protein.
Lysozyme contains both hydrophobic and hydrophilic regions ( <scene name='Sandbox_39/Hydrophobicity/2'>Hydrophobicity</scene> ). The hydrophilic effect, or the desire for proteins to be at a specific position regarding water, is the single most important determinant of protein folding. These regions can be displayed with the hydrophobic regions in gray and the polar, hydrophillic regions in purple. This coloration highlights the location of these regions, showing that the majority of the hydrophobic regions are inside of the protein and that the majority of the hydrophillic regions are on the outside of the protein.


Here, lysozyme can also be seen interacting with <scene name='Sandbox_39/Water/1'>water</scene>, demonstrating how water remains almost exclusively on the outside of the molecule where the polar residues reside.


====Polarity====
====Polarity====


The nature of the amino acid sidechains in the lysozyme polypeptide sequence leads to regions of varying hydrophobicities and polarities of the enzyme structure.  The presence of certain regions of hydrophilicity and hydrophobicity is a driving force in determining protein structure when folding.  The varying polarities of the side chains influence the locations of residues in the enzyme structure.  Nonpolar residues appear blue, and polar residues appear red in the following <scene name='Sandbox_38/Non_polar_blue/1'>polarity</scene> display of lysozyme.  Nonpolar residues will display hydrophobic tendencies occurring mostly on the interior of the enzyme while polar residues will increase in abundance on the surface of the protein in order to increase contact with the aqueous solvent so as to satisfy their hydrophilic nature. By observing a space-filled structural depiction of <scene name='Sandbox_38/Non_polar_blu/1'>lysozyme polarity</scene> with polar molecules colored red and nonpolar molecules colored blue the influence of polarity on nucleotide arrangement and protein folding is evident, with the blue (nonpolar) regions inside the red (polar) regions.  The presence of <scene name='Sandbox_38/Water/1'>water molecules</scene> interacting with the various hydrophilic residues is depicted to further display how polarity affects structure.  Water is depicted as yellow, and the polar and nonpolar regions remain their respective color.
The nature of the amino acid sidechains in the lysozyme polypeptide sequence leads to regions of varying hydrophobicities and polarities of the enzyme structure.  The presence of certain regions of hydrophilicity and hydrophobicity is a driving force in determining protein structure when folding.  The varying polarities of the side chains influence the locations of residues in the enzyme structure.  Nonpolar residues appear blue, and polar residues appear red in the following <scene name='Sandbox_38/Non_polar_blue/1'>polarity</scene> display of lysozyme.  Nonpolar residues will display hydrophobic tendencies occurring mostly on the interior of the enzyme while polar residues will increase in abundance on the surface of the protein in order to increase contact with the aqueous solvent so as to satisfy their hydrophilic nature. By observing a space-filled structural depiction of <scene name='Sandbox_38/Non_polar_blu/1'>lysozyme polarity</scene> with polar molecules colored red and nonpolar molecules colored blue the influence of polarity on nucleotide arrangement and protein folding is evident, with the blue (nonpolar) regions inside the red (polar) regions.  The presence of <scene name='Sandbox_39/Water/1'>water</scene> interacting with the various hydrophilic residues is depicted to further display how polarity affects structure.  Water is depicted as yellow, and the polar and nonpolar regions remain their respective color.