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.

Collagen

Hemoglobin S

Tomato Bushy Stunt Virus (TBSV)

Trypsin

Induced Lac Repressor

Myohemerythrin

Lac Repressor

DNA

Cytochrome c (unbound)

Ribonuclease S

A-DNA

DPG-Hemoglobin Complex

Hemoglobin (1000)

B-DNA

Myoglobin Fold

Z-DNA

Oxyhemoglobin

Deoxyribonucleic Acid (DNA)

Hemoglobin

Myoglobin

Cytochrome c

Immunoglobulin G (IgG)

Deoxyhemoglobin

Lysozyme (488)

TATA-Binding Protein (TBP)

Lysozyme (512)

Aspartate Transcarbamoylase (ATCase)

Crambin

Carboxypeptidase A

Intermolecular Contacts in Hemoglobin S

Transfer Ribonucleic Acid (tRNA)

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

Autophagy

Red Blood Cell Cytoskeleton

SARS-CoV-2 and Neutralizing Antibodies

Biosites: Cytoplasm

CytoSkeleton

Vascular Endothelial Growth Factor (VegF) Signaling

Insulin Release

JCVI-syn3A Minimal Cell

Influenza Virus

Kinetochore

Biosites: Blood Plasma

Blood

SARS-CoV-2 Fusion

HIV in Blood Plasma

Abiogenesis

Phage-based COVID-19 Vaccine

Ebola Virus

Immunological Synapse

Transfer RNA and Gag Protein

Chloroplast

Biosites: Red Blood Cell

Respiratory Droplet

Bacteriophage T4 Infection

Measles Virus Proteins

Coronavirus Life Cycle

Escherichia coli

Caulobacter Polar Microdomain

Poliovirus Neutralization

RecA and DNA

HIV Vaccine

Casein Micelle and Fat Globule in Milk

Cellulose Synthase

Zika Virus

Last Universal Common Ancestor

Collagen and Extracellular Matrix

Escherichia coli Bacterium

Biosites: Muscle

Biosites: Nucleus

Excitatory and Inhibitory Synapses

Myoglobin in a Whale Muscle Cell

Mycoplasma mycoides

Myelin

Biosites: Basement Membrane

HIV-Infected Cell

Insulin Action

Coronavirus

Lipid Droplets

Influenza Vaccine

SARS-CoV-2 mRNA Vaccine

Model of a Mycoplasma Cell