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 (488)

DPG-Hemoglobin Complex

Ribonuclease S

Crambin

Immunoglobulin G (IgG)

TATA-Binding Protein (TBP)

Myoglobin Fold

Z-DNA

Deoxyribonucleic Acid (DNA)

Intermolecular Contacts in Hemoglobin S

Transfer Ribonucleic Acid (tRNA)

Cytochrome c (unbound)

Lac Repressor

Aspartate Transcarbamoylase (ATCase)

Tomato Bushy Stunt Virus (TBSV)

Induced Lac Repressor

Lysozyme (512)

Oxyhemoglobin

Carboxypeptidase A

Hemoglobin S

Deoxyhemoglobin

Hemoglobin (1000)

Cytochrome c

Collagen

Myoglobin

A-DNA

Trypsin

Hemoglobin

DNA

B-DNA

Myohemerythrin

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

HIV-Infected Cell

Influenza Vaccine

Biosites: Muscle

Phage-based COVID-19 Vaccine

Coronavirus Life Cycle

Influenza Virus

Poliovirus Neutralization

Biosites: Basement Membrane

SARS-CoV-2 Fusion

Excitatory and Inhibitory Synapses

Lipid Droplets

Insulin Release

Casein Micelle and Fat Globule in Milk

Zika Virus

Caulobacter Polar Microdomain

Biosites: Nucleus

HIV in Blood Plasma

Kinetochore

RecA and DNA

Vascular Endothelial Growth Factor (VegF) Signaling

Escherichia coli Bacterium

Blood

Coronavirus

Cellulose Synthase

Escherichia coli

SARS-CoV-2 and Neutralizing Antibodies

Respiratory Droplet

Chloroplast

Insulin Action

Biosites: Cytoplasm

Transfer RNA and Gag Protein

Model of a Mycoplasma Cell

Biosites: Blood Plasma

Last Universal Common Ancestor

Biosites: Red Blood Cell

HIV Vaccine

Red Blood Cell Cytoskeleton

JCVI-syn3A Minimal Cell

Collagen and Extracellular Matrix

Immunological Synapse

Myoglobin in a Whale Muscle Cell

Ebola Virus

Bacteriophage T4 Infection

Autophagy

Myelin

Measles Virus Proteins

CytoSkeleton

SARS-CoV-2 mRNA Vaccine

Abiogenesis

Mycoplasma mycoides