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.

Carboxypeptidase A

Collagen

TATA-Binding Protein (TBP)

Lysozyme (512)

Myoglobin

Myohemerythrin

Cytochrome c (unbound)

B-DNA

Deoxyhemoglobin

Hemoglobin

Induced Lac Repressor

Lac Repressor

Myoglobin Fold

A-DNA

Lysozyme (488)

Transfer Ribonucleic Acid (tRNA)

Cytochrome c

Ribonuclease S

DNA

Deoxyribonucleic Acid (DNA)

Crambin

Z-DNA

Intermolecular Contacts in Hemoglobin S

Trypsin

Oxyhemoglobin

Hemoglobin S

Tomato Bushy Stunt Virus (TBSV)

Immunoglobulin G (IgG)

Hemoglobin (1000)

DPG-Hemoglobin Complex

Aspartate Transcarbamoylase (ATCase)

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

Mycoplasma mycoides

Poliovirus Neutralization

Collagen and Extracellular Matrix

Biosites: Muscle

Escherichia coli

JCVI-syn3A Minimal Cell

Caulobacter Polar Microdomain

CytoSkeleton

Ebola Virus

Biosites: Nucleus

Transfer RNA and Gag Protein

Excitatory and Inhibitory Synapses

Red Blood Cell Cytoskeleton

Last Universal Common Ancestor

Measles Virus Proteins

Biosites: Cytoplasm

Insulin Release

Escherichia coli Bacterium

Blood

HIV-Infected Cell

Bacteriophage T4 Infection

Myelin

SARS-CoV-2 Fusion

Biosites: Red Blood Cell

HIV Vaccine

Insulin Action

Phage-based COVID-19 Vaccine

Vascular Endothelial Growth Factor (VegF) Signaling

SARS-CoV-2 and Neutralizing Antibodies

Influenza Virus

Abiogenesis

Myoglobin in a Whale Muscle Cell

Coronavirus Life Cycle

SARS-CoV-2 mRNA Vaccine

Coronavirus

RecA and DNA

Respiratory Droplet

Model of a Mycoplasma Cell

Lipid Droplets

Chloroplast

Zika Virus

Biosites: Blood Plasma

Immunological Synapse

Biosites: Basement Membrane

Influenza Vaccine

Kinetochore

HIV in Blood Plasma

Autophagy

Cellulose Synthase

Casein Micelle and Fat Globule in Milk