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.

Tomato Bushy Stunt Virus (TBSV)

Hemoglobin (1000)

TATA-Binding Protein (TBP)

Hemoglobin

Carboxypeptidase A

DPG-Hemoglobin Complex

Trypsin

Z-DNA

B-DNA

Cytochrome c

Oxyhemoglobin

Lac Repressor

Deoxyhemoglobin

Immunoglobulin G (IgG)

Cytochrome c (unbound)

Induced Lac Repressor

Hemoglobin S

Myoglobin

A-DNA

Lysozyme (512)

Aspartate Transcarbamoylase (ATCase)

Intermolecular Contacts in Hemoglobin S

Ribonuclease S

Transfer Ribonucleic Acid (tRNA)

DNA

Myohemerythrin

Myoglobin Fold

Crambin

Deoxyribonucleic Acid (DNA)

Collagen

Lysozyme (488)

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

Zika Virus

SARS-CoV-2 Fusion

Biosites: Muscle

Lipid Droplets

Collagen and Extracellular Matrix

Ebola Virus

Bacteriophage T4 Infection

HIV-Infected Cell

Last Universal Common Ancestor

Biosites: Basement Membrane

CytoSkeleton

Poliovirus Neutralization

Biosites: Cytoplasm

Autophagy

Insulin Action

Model of a Mycoplasma Cell

HIV Vaccine

Influenza Virus

Coronavirus Life Cycle

Respiratory Droplet

Casein Micelle and Fat Globule in Milk

Immunological Synapse

Cellulose Synthase

Escherichia coli

Vascular Endothelial Growth Factor (VegF) Signaling

Myelin

Phage-based COVID-19 Vaccine

Kinetochore

Transfer RNA and Gag Protein

Biosites: Blood Plasma

Insulin Release

Influenza Vaccine

HIV in Blood Plasma

JCVI-syn3A Minimal Cell

Measles Virus Proteins

Escherichia coli Bacterium

Blood

Myoglobin in a Whale Muscle Cell

Excitatory and Inhibitory Synapses

SARS-CoV-2 and Neutralizing Antibodies

SARS-CoV-2 mRNA Vaccine

RecA and DNA

Red Blood Cell Cytoskeleton

Biosites: Red Blood Cell

Coronavirus

Mycoplasma mycoides

Abiogenesis

Biosites: Nucleus

Chloroplast

Caulobacter Polar Microdomain