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.

Transfer Ribonucleic Acid (tRNA)

Immunoglobulin G (IgG)

Myoglobin Fold

DPG-Hemoglobin Complex

DNA

Trypsin

Deoxyribonucleic Acid (DNA)

Hemoglobin

Myohemerythrin

Hemoglobin S

Lysozyme (488)

Tomato Bushy Stunt Virus (TBSV)

Crambin

Aspartate Transcarbamoylase (ATCase)

Ribonuclease S

TATA-Binding Protein (TBP)

Carboxypeptidase A

Lysozyme (512)

Cytochrome c (unbound)

Induced Lac Repressor

Myoglobin

Cytochrome c

Oxyhemoglobin

Intermolecular Contacts in Hemoglobin S

B-DNA

Z-DNA

Deoxyhemoglobin

Collagen

Hemoglobin (1000)

A-DNA

Lac Repressor

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

Ebola Virus

CytoSkeleton

Vascular Endothelial Growth Factor (VegF) Signaling

Lipid Droplets

Insulin Release

Bacteriophage T4 Infection

Biosites: Cytoplasm

Escherichia coli Bacterium

SARS-CoV-2 Fusion

Transfer RNA and Gag Protein

Caulobacter Polar Microdomain

Blood

Collagen and Extracellular Matrix

SARS-CoV-2 mRNA Vaccine

Insulin Action

JCVI-syn3A Minimal Cell

Kinetochore

Influenza Virus

Last Universal Common Ancestor

Myoglobin in a Whale Muscle Cell

Autophagy

Influenza Vaccine

Cellulose Synthase

Biosites: Blood Plasma

Biosites: Nucleus

Myelin

Biosites: Muscle

HIV Vaccine

Biosites: Basement Membrane

Chloroplast

Casein Micelle and Fat Globule in Milk

Measles Virus Proteins

Red Blood Cell Cytoskeleton

Coronavirus Life Cycle

Coronavirus

Phage-based COVID-19 Vaccine

Excitatory and Inhibitory Synapses

Respiratory Droplet

HIV-Infected Cell

HIV in Blood Plasma

Model of a Mycoplasma Cell

Abiogenesis

Poliovirus Neutralization

Mycoplasma mycoides

Biosites: Red Blood Cell

Escherichia coli

RecA and DNA

Immunological Synapse

Zika Virus

SARS-CoV-2 and Neutralizing Antibodies