Molecule of the Month
September 2026

Biofilms

Bacterial communities glued together and protected by biological polymers

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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.

Immunoglobulin G (IgG)

Cytochrome c

Induced Lac Repressor

Oxyhemoglobin

Hemoglobin

Ribonuclease S

Lac Repressor

Myoglobin Fold

Intermolecular Contacts in Hemoglobin S

Aspartate Transcarbamoylase (ATCase)

Hemoglobin S

TATA-Binding Protein (TBP)

Hemoglobin (1000)

Transfer Ribonucleic Acid (tRNA)

Trypsin

Myohemerythrin

Cytochrome c (unbound)

Myoglobin

Deoxyribonucleic Acid (DNA)

Tomato Bushy Stunt Virus (TBSV)

Lysozyme (512)

Carboxypeptidase A

Deoxyhemoglobin

Lysozyme (488)

DNA

DPG-Hemoglobin Complex

A-DNA

Collagen

B-DNA

Z-DNA

Crambin

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

SARS-CoV-2 Fusion

HIV-Infected Cell

Last Universal Common Ancestor

Biosites: Cytoplasm

Kinetochore

Collagen and Extracellular Matrix

Coronavirus Life Cycle

Lipid Droplets

Biosites: Nucleus

Zika Virus

Insulin Action

Immunological Synapse

HIV in Blood Plasma

HIV Vaccine

JCVI-syn3A Minimal Cell

Poliovirus Neutralization

Biosites: Red Blood Cell

RecA and DNA

Blood

Influenza Vaccine

Coronavirus

Cellulose Synthase

Myelin

Abiogenesis

Vascular Endothelial Growth Factor (VegF) Signaling

Biosites: Blood Plasma

CytoSkeleton

Myoglobin in a Whale Muscle Cell

Insulin Release

Respiratory Droplet

Influenza Virus

Ebola Virus

SARS-CoV-2 and Neutralizing Antibodies

SARS-CoV-2 mRNA Vaccine

Red Blood Cell Cytoskeleton

Phage-based COVID-19 Vaccine

Measles Virus Proteins

Biosites: Basement Membrane

Model of a Mycoplasma Cell

Casein Micelle and Fat Globule in Milk

Biosites: Muscle

Chloroplast

Caulobacter Polar Microdomain

Autophagy

Transfer RNA and Gag Protein

Escherichia coli Bacterium

Excitatory and Inhibitory Synapses

Mycoplasma mycoides

Bacteriophage T4 Infection

Escherichia coli