Search Results for DNA

Molecule of the Month articles (68) Learning Resource documents (7) Structural Biology Highlights articles (10) Global Health articles (2) Geis Archive articles (21) Goodsell Gallery articles (3)
Molecule of the Month articles (68)More

November 2001

Atomic structures reveal how the iconic double helix encodes genomic information

DNA Methyltransferases

July 2011

Cells add methyl groups to their DNA to encode additional epigenetic information

DNA Helicase

December 2013

DNA helicase pries apart the two strands in a DNA double helix, powered by ATP

DNA Ligase

July 2004

DNA ligase reconnects broken DNA strands, and is used to engineer recombinant DNA

Learning Resource documents (7)More

Paper Model
Atomic structures reveal how the iconic double helix encodes genomic information

Artificial lattice of a designed DNA crystal

Designed DNA crystal: Small pieces of DNA have been engineered to form a nanoscale lattice.

ADN: El Acido Desoxirribonucleico (Spanish)

Atomic structures reveal how the iconic double helix encodes genomic information

Structural Biology Highlights articles (10)More
Stabilizing DNA Single Strands

PSI researchers have determined the structure of a new single-stranded DNA-binding domain, revealing a surprising connection between the kingdoms of life.

Mre11 Nuclease

All living things on the Earth store their genetic information in long strands of DNA.

Cas4 Nuclease and Bacterial Immunity

A distinctive toroidal structure, a metal ion and an iron-sulfur cluster allow Cas4 to unwind and process phage DNA in the process of CRISPR-associated immunity.

Hda and DNA Replication

Cell division requires careful bookkeeping.

Global Health articles (2)
Geis Archive articles (21)More

In this sketch, Geis illustrates the left handed Z-form of double stranded deoxyribonucleic acid (DNA). Z-DNA is indicated by the zig-zag like pattern of the two strands in relationship to each other. Geis shows a line of symmetry down the middle of the illustration highlighting the helix axis of the molecule.

Deoxyribonucleic Acid (DNA)

Geis illustrates three possible forms of deoxyribonucleic acid (DNA). He highlights the differences between each structure by displaying them in a side-by-side manner.


Geis uses a thin ball and stick representation of a section of A-DNA, the more compact conformation of DNA less often seen in biological systems. He draws it from a perspective looking down into the double helix, showing the increase in diameter of the middle of the helix from the B form DNA.


Geis illustrates B-DNA in blue looking from above, through the double helix. The two bases on top are highlighted in white to distinguish one individual section of the layered scene.

Goodsell Gallery articles (3)
Biosites: Nucleus


Biosites: Nucleus (2005) by David S. Goodsell

Escherichia coli


Escherichia coli (1999) by David S. Goodsell

Mycoplasma mycoides


Mycoplasma mycoides (2011) by David S. Goodsell.