B-DNA tour: Difference between revisions

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Start the tour with this <scene name='72/725442/B-dna_overview/1'>Overview</scene> 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.
Start the tour with this <scene name='72/725442/B-dna_overview/1'>Overview</scene> view. Now look at this <scene name='72/725442/Space_filling_view/1'>space filling view</scene>.The backbone is yellow and the bases are magenta. You can compare it with the other DNA forms by  
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 <ref>DOI 10.1002/ijch.201300024</ref> or to the article describing Jmol <ref>PMID:21638687</ref> to the rescue.
You may include any references to papers as in: the use of JSmol in Proteopedia <ref>DOI 10.1002/ijch.201300024</ref> or to the article describing Jmol <ref>PMID:21638687</ref> to the rescue.

Revision as of 18:59, 20 February 2016

B-form DNAB-form DNA

  • 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 .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.


B-DNA

Drag the structure with the mouse to rotate

ReferencesReferences

R. E. Dickerson, H. R. Drew, B. N. Conner, R. M. Wing, A. V. Fratini & M. L. Kopka (1982) The anatomy of A-, B-, and Z-DNA. Science 216: 475-485 [3]

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

James Nolan, Eric Martz
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