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.

Lysozyme (512)

Myohemerythrin

Tomato Bushy Stunt Virus (TBSV)

Hemoglobin (1000)

B-DNA

Transfer Ribonucleic Acid (tRNA)

Cytochrome c (unbound)

Deoxyhemoglobin

TATA-Binding Protein (TBP)

Aspartate Transcarbamoylase (ATCase)

Induced Lac Repressor

Lac Repressor

Carboxypeptidase A

DNA

Myoglobin

DPG-Hemoglobin Complex

Ribonuclease S

Deoxyribonucleic Acid (DNA)

Crambin

Collagen

Trypsin

Hemoglobin

Immunoglobulin G (IgG)

Cytochrome c

Z-DNA

Lysozyme (488)

Oxyhemoglobin

Intermolecular Contacts in Hemoglobin S

A-DNA

Myoglobin Fold

Hemoglobin S

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

Influenza Virus

Bacteriophage T4 Infection

Escherichia coli

SARS-CoV-2 mRNA Vaccine

JCVI-syn3A Minimal Cell

Blood

Measles Virus Proteins

Biosites: Red Blood Cell

Red Blood Cell Cytoskeleton

Biosites: Cytoplasm

Phage-based COVID-19 Vaccine

Biosites: Muscle

RecA and DNA

Poliovirus Neutralization

Casein Micelle and Fat Globule in Milk

CytoSkeleton

Biosites: Blood Plasma

Autophagy

Model of a Mycoplasma Cell

Influenza Vaccine

Vascular Endothelial Growth Factor (VegF) Signaling

Respiratory Droplet

Collagen and Extracellular Matrix

Excitatory and Inhibitory Synapses

SARS-CoV-2 Fusion

Biosites: Nucleus

Myelin

Lipid Droplets

Caulobacter Polar Microdomain

Biosites: Basement Membrane

Insulin Release

Escherichia coli Bacterium

Zika Virus

Abiogenesis

Mycoplasma mycoides

HIV Vaccine

Coronavirus Life Cycle

Last Universal Common Ancestor

Coronavirus

Myoglobin in a Whale Muscle Cell

Cellulose Synthase

Ebola Virus

HIV-Infected Cell

Immunological Synapse

Kinetochore

Chloroplast

HIV in Blood Plasma

Transfer RNA and Gag Protein

Insulin Action

SARS-CoV-2 and Neutralizing Antibodies