DNA base pairs: A, B, and Z
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Description

Base pairs of DNA from B form (PDB 1bna), A form (PDB 1ana), and Z form (2dcg). A and B DNA have one G-C pair and one A-T pair. Z DNA shows two G-C pairs. Hydrogen bonds are shown between bases. Phosphates on the 5' ends are missing one Oxygen so that if multiple files are printed, they may be glued together with the 3' Oxygen to form a longer chain if desired. Stick models are meant to show sugar puckers and torsion angles.

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Source creator
SJSU_Pollom
Source license
Public Domain
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DNA base pairs: A, B, and Z

From NIH 3D
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Category

learning

License

CC0

Published

9/30/2026

Availability

free on NIH 3D