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.

Crambin

Deoxyribonucleic Acid (DNA)

Deoxyhemoglobin

TATA-Binding Protein (TBP)

A-DNA

Ribonuclease S

Hemoglobin (1000)

Induced Lac Repressor

Myohemerythrin

Intermolecular Contacts in Hemoglobin S

Z-DNA

Myoglobin

Oxyhemoglobin

Lysozyme (488)

DPG-Hemoglobin Complex

Hemoglobin S

Immunoglobulin G (IgG)

Hemoglobin

Lysozyme (512)

Aspartate Transcarbamoylase (ATCase)

Collagen

Carboxypeptidase A

Myoglobin Fold

Cytochrome c (unbound)

Lac Repressor

B-DNA

Tomato Bushy Stunt Virus (TBSV)

Transfer Ribonucleic Acid (tRNA)

DNA

Cytochrome c

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

Escherichia coli Bacterium

Insulin Release

Abiogenesis

Mycoplasma mycoides

Escherichia coli

JCVI-syn3A Minimal Cell

SARS-CoV-2 mRNA Vaccine

RecA and DNA

Biosites: Basement Membrane

HIV-Infected Cell

Coronavirus Life Cycle

Biosites: Blood Plasma

Caulobacter Polar Microdomain

Biosites: Cytoplasm

Measles Virus Proteins

Casein Micelle and Fat Globule in Milk

Poliovirus Neutralization

Last Universal Common Ancestor

Excitatory and Inhibitory Synapses

CytoSkeleton

Collagen and Extracellular Matrix

Insulin Action

Myoglobin in a Whale Muscle Cell

Red Blood Cell Cytoskeleton

Myelin

Ebola Virus

Chloroplast

Vascular Endothelial Growth Factor (VegF) Signaling

Transfer RNA and Gag Protein

Biosites: Nucleus

Zika Virus

HIV in Blood Plasma

Blood

Cellulose Synthase

Bacteriophage T4 Infection

Immunological Synapse

SARS-CoV-2 Fusion

Lipid Droplets

Biosites: Muscle

SARS-CoV-2 and Neutralizing Antibodies

Respiratory Droplet

HIV Vaccine

Model of a Mycoplasma Cell

Biosites: Red Blood Cell

Phage-based COVID-19 Vaccine

Kinetochore

Coronavirus

Autophagy

Influenza Vaccine

Influenza Virus