Sandbox Reserved 1475: Difference between revisions

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===Cofactor NAD and Cl ions===

The crystal structure was cocrystallized with <scene name='80/800654/Nad/1'>NAD</scene>, and was determined at a 2.7 Angstrom resolution ([[Figure 2]] Chain D present with NAD represented in pink).<ref name="Lamb AL, Newcomber ME" /> NAD+ acts as a cofactor and is the electron acceptor in RalDH2 oxidoructase reaction as seen in the reaction presented above. RalDH2 has to be folded in a proper manner for its enzymatic function to occur. The folding of the enzyme is partially due to the interactions of NAD+ and Chloride ions. When NAD+ is present hydrogen bonds with Glu and Ser form, van der Waals interactions with non-polar residues and one polar residue (Lys) forms. The interaction with Lys-192 provides the transition state stability, making for a favorable confirmation.<ref name="Lamb AL, Newcomber ME" /> This conformational change is important since in the absence of NAD+, no crystal structures grew in any of the screened conditions. <ref></~~ref~~> The Chloride ions participate in hydrophobic interactions with Arg which also help maintain the folded structure.<ref name="Lamb AL, Newcomber ME" /> With the cofactor NAD+ present the catalytic domain of RalDH2 is highly mobile and needs the selective substrate present to immobilize the catalytic domain.

The crystal structure was cocrystallized with <scene name='80/800654/Nad/1'>NAD</scene>, and was determined at a 2.7 Angstrom resolution ([[Figure 2]] Chain D present with NAD represented in pink).<ref name="Lamb AL, Newcomber ME" /> NAD+ acts as a cofactor and is the electron acceptor in RalDH2 oxidoructase reaction as seen in the reaction presented above. RalDH2 has to be folded in a proper manner for its enzymatic function to occur. The folding of the enzyme is partially due to the interactions of NAD+ and Chloride ions. When NAD+ is present hydrogen bonds with Glu and Ser form, van der Waals interactions with non-polar residues and one polar residue (Lys) forms. The interaction with Lys-192 provides the transition state stability, making for a favorable confirmation.<ref name="Lamb AL, Newcomber ME" /> This conformational change is important since in the absence of NAD+, no crystal structures grew in any of the screened conditions.<ref name="Lamb AL, Newcomber ME" /> The Chloride ions participate in hydrophobic interactions with Arg which also help maintain the folded structure.<ref name="Lamb AL, Newcomber ME" /> With the cofactor NAD+ present the catalytic domain of RalDH2 is highly mobile and needs the selective substrate present to immobilize the catalytic domain.

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 ===Cofactor NAD and Cl ions===
-The crystal structure was cocrystallized with <scene name='80/800654/Nad/1'>NAD</scene>, and was determined at a 2.7 Angstrom resolution ([[Figure 2]] Chain D present with NAD represented in pink).<ref name="Lamb AL, Newcomber ME" /> NAD+ acts as a cofactor and is the electron acceptor in RalDH2 oxidoructase reaction as seen in the reaction presented above. RalDH2 has to be folded in a proper manner for its enzymatic function to occur. The folding of the enzyme is partially due to the interactions of NAD+ and Chloride ions. When NAD+ is present hydrogen bonds with Glu and Ser form, van der Waals interactions with non-polar residues and one polar residue (Lys) forms. The interaction with Lys-192 provides the transition state stability, making for a favorable confirmation.<ref name="Lamb AL, Newcomber ME" /> This conformational change is important since in the absence of NAD+, no crystal structures grew in any of the screened conditions. <ref></ref> The Chloride ions participate in hydrophobic interactions with Arg which also help maintain the folded structure.<ref name="Lamb AL, Newcomber ME" /> With the cofactor NAD+ present the catalytic domain of RalDH2 is highly mobile and needs the selective substrate present to immobilize the catalytic domain.
+The crystal structure was cocrystallized with <scene name='80/800654/Nad/1'>NAD</scene>, and was determined at a 2.7 Angstrom resolution ([[Figure 2]] Chain D present with NAD represented in pink).<ref name="Lamb AL, Newcomber ME" /> NAD+ acts as a cofactor and is the electron acceptor in RalDH2 oxidoructase reaction as seen in the reaction presented above. RalDH2 has to be folded in a proper manner for its enzymatic function to occur. The folding of the enzyme is partially due to the interactions of NAD+ and Chloride ions. When NAD+ is present hydrogen bonds with Glu and Ser form, van der Waals interactions with non-polar residues and one polar residue (Lys) forms. The interaction with Lys-192 provides the transition state stability, making for a favorable confirmation.<ref name="Lamb AL, Newcomber ME" /> This conformational change is important since in the absence of NAD+, no crystal structures grew in any of the screened conditions.<ref name="Lamb AL, Newcomber ME" />  The Chloride ions participate in hydrophobic interactions with Arg which also help maintain the folded structure.<ref name="Lamb AL, Newcomber ME" /> With the cofactor NAD+ present the catalytic domain of RalDH2 is highly mobile and needs the selective substrate present to immobilize the catalytic domain.
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