B-DNA tour

• Most common DNA conformation in vivo
• Narrower, more elongated helix than A.
• Wide major groove easily accessible to proteins
• Narrow minor groove
• Favored conformation at high water concentrations (hydration of minor groove seems to favor B-form)
• Base pairs nearly perpendicular to helix axis
• Sugar pucker C2'-endo

Start the tour with this view. Now look at this space filling view. reset; slab off; rotate z -140; rotate y -7; rotate x 71; zoom 144; select all; hbonds off; set bonds off; set bondmode and; select hetero; spacefill off; set hetero off; dots off; select dna; spacefill on; wireframe off; color magenta; select backbone; color yellow. The backbone is yellow and the bases are magenta.

You can compare it with the other DNA forms by 

You may include any references to papers as in: the use of JSmol in Proteopedia ^[1] or to the article describing Jmol ^[2] to the rescue.

Function

Disease

Relevance

Structural highlights

This is a sample scene created with SAT to , and another to make of the protein. You can make your own scenes on SAT starting from scratch or loading and editing one of these sample scenes.