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.

Cytochrome c (unbound)

Deoxyribonucleic Acid (DNA)

Induced Lac Repressor

Hemoglobin

Z-DNA

Myohemerythrin

Aspartate Transcarbamoylase (ATCase)

Tomato Bushy Stunt Virus (TBSV)

DNA

Myoglobin

Crambin

Intermolecular Contacts in Hemoglobin S

Immunoglobulin G (IgG)

Transfer Ribonucleic Acid (tRNA)

B-DNA

Collagen

Hemoglobin (1000)

Myoglobin Fold

Lysozyme (512)

Cytochrome c

Hemoglobin S

Carboxypeptidase A

A-DNA

Ribonuclease S

Lysozyme (488)

TATA-Binding Protein (TBP)

Oxyhemoglobin

Lac Repressor

Deoxyhemoglobin

DPG-Hemoglobin Complex

Trypsin

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

Biosites: Basement Membrane

Casein Micelle and Fat Globule in Milk

Zika Virus

Caulobacter Polar Microdomain

Myoglobin in a Whale Muscle Cell

HIV in Blood Plasma

Cellulose Synthase

Measles Virus Proteins

Immunological Synapse

SARS-CoV-2 and Neutralizing Antibodies

Abiogenesis

Respiratory Droplet

Model of a Mycoplasma Cell

Vascular Endothelial Growth Factor (VegF) Signaling

Escherichia coli Bacterium

Biosites: Cytoplasm

Biosites: Nucleus

Phage-based COVID-19 Vaccine

Last Universal Common Ancestor

SARS-CoV-2 mRNA Vaccine

Insulin Action

Biosites: Blood Plasma

Coronavirus Life Cycle

Influenza Vaccine

Autophagy

HIV Vaccine

Blood

Kinetochore

Red Blood Cell Cytoskeleton

Lipid Droplets

Chloroplast

Bacteriophage T4 Infection

HIV-Infected Cell

Mycoplasma mycoides

Biosites: Red Blood Cell

JCVI-syn3A Minimal Cell

Poliovirus Neutralization

Coronavirus

Myelin

Ebola Virus

Biosites: Muscle

Transfer RNA and Gag Protein

Influenza Virus

Insulin Release

CytoSkeleton

Excitatory and Inhibitory Synapses

RecA and DNA

Collagen and Extracellular Matrix

SARS-CoV-2 Fusion

Escherichia coli