User:James D Watson/Structural Templates: Difference between revisions

Line 71:

There are a number of small hydrogen bonded motifs and patterns which are observed regularly. These are described below:<UL>

<LI>Beta Turns - originally defined by the one hydrogen bond common to all (an i, i+3 hydrogen bond) but some modern descriptions do not require a hydrogen bond.

<LI><scene name='User:James_D_Watson/Structural_Templates/Secondary_structure_betaturn/1'>Beta Turns</scene> - originally defined by the one hydrogen bond common to all (an i, i+3 hydrogen bond) but some modern descriptions do not require a hydrogen bond.

<LI>Beta Bulge Loops - often associated with beta sheets and result from an additional residue being found in one strand. This interrupts the regular hydrogen bonding and causes a distinctive bulge.

<LI>Alpha turns - the simplest of all motifs and is characterised by one (i, i+4) hydrogen bond. It is found as part of the hydrogen bonding network of alpha helices as well as occurring on its own.

@@ Line 71: / Line 71: @@
 <applet load='5p21' size='350' frame='true' align='left' caption='Secondary structure - Alpha' scene='User:James_D_Watson/Structural_Templates/Secondary_structure_start/3'/>
 There are a number of small hydrogen bonded motifs and patterns which are observed regularly. These are described below:<UL>
-<LI>Beta Turns - originally defined by the one hydrogen bond common to all (an i, i+3 hydrogen bond) but some modern descriptions do not require a hydrogen bond.
+<LI><scene name='User:James_D_Watson/Structural_Templates/Secondary_structure_betaturn/1'>Beta Turns</scene> - originally defined by the one hydrogen bond common to all (an i, i+3 hydrogen bond) but some modern descriptions do not require a hydrogen bond.
 <LI>Beta Bulge Loops - often associated with beta sheets and result from an additional residue being found in one strand. This interrupts the regular hydrogen bonding and causes a distinctive bulge.
 <LI>Alpha turns - the simplest of all motifs and is characterised by one (i, i+4) hydrogen bond. It is found as part of the hydrogen bonding network of alpha helices as well as occurring on its own.