Molecule of the Month
November 2026

Artificial Metalloenzymes

Engineering enzymes to catalyze reactions never seen in nature

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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.

Images used with permission from the Howard Hughes Medical Institute (www.hhmi.org). All rights reserved.

Deoxyribonucleic Acid (DNA)

Cytochrome c

TATA-Binding Protein (TBP)

Induced Lac Repressor

Intermolecular Contacts in Hemoglobin S

Myoglobin Fold

Carboxypeptidase A

Immunoglobulin G (IgG)

Myoglobin

A-DNA

Hemoglobin

Cytochrome c (unbound)

Hemoglobin (1000)

Lac Repressor

Tomato Bushy Stunt Virus (TBSV)

Oxyhemoglobin

Lysozyme (488)

Myohemerythrin

Hemoglobin S

Trypsin

Ribonuclease S

DPG-Hemoglobin Complex

Lysozyme (512)

DNA

Aspartate Transcarbamoylase (ATCase)

B-DNA

Deoxyhemoglobin

Z-DNA

Crambin

Transfer Ribonucleic Acid (tRNA)

Collagen

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

Poliovirus Neutralization

HIV in Blood Plasma

HIV Vaccine

JCVI-syn3A Minimal Cell

Red Blood Cell Cytoskeleton

RecA and DNA

Influenza Virus

Biosites: Muscle

SARS-CoV-2 and Neutralizing Antibodies

Lipid Droplets

Coronavirus

Abiogenesis

Myelin

Cellulose Synthase

Bacteriophage T4 Infection

Immunological Synapse

SARS-CoV-2 mRNA Vaccine

Model of a Mycoplasma Cell

SARS-CoV-2 Fusion

Coronavirus Life Cycle

Collagen and Extracellular Matrix

Autophagy

Phage-based COVID-19 Vaccine

Insulin Release

Myoglobin in a Whale Muscle Cell

Casein Micelle and Fat Globule in Milk

Excitatory and Inhibitory Synapses

Kinetochore

Chloroplast

Biosites: Nucleus

Zika Virus

Biosites: Cytoplasm

Biosites: Blood Plasma

Influenza Vaccine

Respiratory Droplet

Transfer RNA and Gag Protein

Biosites: Basement Membrane

Escherichia coli Bacterium

Ebola Virus

Vascular Endothelial Growth Factor (VegF) Signaling

Mycoplasma mycoides

Biosites: Red Blood Cell

Measles Virus Proteins

Blood

CytoSkeleton

Caulobacter Polar Microdomain

HIV-Infected Cell

Insulin Action

Last Universal Common Ancestor

Escherichia coli