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Molecule of the Month

November 2026

Artificial Metalloenzymes

Engineering enzymes to catalyze reactions never seen in nature

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Guide to Understanding PDB Data

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SciArt Galleries

Irving Geis (1908-1997) was a gifted artist who helped illuminate the field of structural biology with his iconic images. The Geis Digital Archive features many of his illustrations in the context of their molecular structures.

Carboxypeptidase A

DNA

Tomato Bushy Stunt Virus (TBSV)

Myoglobin Fold

Immunoglobulin G (IgG)

Cytochrome c (unbound)

Hemoglobin S

Hemoglobin

Collagen

Oxyhemoglobin

Lac Repressor

B-DNA

Lysozyme (488)

Lysozyme (512)

Deoxyribonucleic Acid (DNA)

Myohemerythrin

TATA-Binding Protein (TBP)

Crambin

Induced Lac Repressor

Intermolecular Contacts in Hemoglobin S

Z-DNA

DPG-Hemoglobin Complex

Transfer Ribonucleic Acid (tRNA)

Trypsin

Deoxyhemoglobin

Myoglobin

A-DNA

Ribonuclease S

Cytochrome c

Aspartate Transcarbamoylase (ATCase)

Hemoglobin (1000)

The Molecular Landscapes by David S. Goodsell integrate information from structural biology, microscopy and biophysics to simulate detailed views of the molecular structure of living cells.

Illustrations are free for use under a CC-BY-4.0 license