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)

DNA

Intermolecular Contacts in Hemoglobin S

Myohemerythrin

TATA-Binding Protein (TBP)

Hemoglobin (1000)

Collagen

Ribonuclease S

Cytochrome c

Deoxyhemoglobin

Lysozyme (488)

A-DNA

B-DNA

Crambin

Transfer Ribonucleic Acid (tRNA)

Trypsin

Lysozyme (512)

Myoglobin Fold

Cytochrome c (unbound)

Aspartate Transcarbamoylase (ATCase)

DPG-Hemoglobin Complex

Induced Lac Repressor

Carboxypeptidase A

Hemoglobin S

Lac Repressor

Oxyhemoglobin

Z-DNA

Myoglobin

Hemoglobin

Deoxyribonucleic Acid (DNA)

Tomato Bushy Stunt Virus (TBSV)

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

Caulobacter Polar Microdomain

Poliovirus Neutralization

Transfer RNA and Gag Protein

Zika Virus

Cellulose Synthase

Coronavirus

Biosites: Nucleus

JCVI-syn3A Minimal Cell

Escherichia coli Bacterium

Influenza Vaccine

Biosites: Cytoplasm

Immunological Synapse

HIV Vaccine

Insulin Action

Chloroplast

Collagen and Extracellular Matrix

Ebola Virus

Influenza Virus

Escherichia coli

RecA and DNA

SARS-CoV-2 and Neutralizing Antibodies

Insulin Release

Coronavirus Life Cycle

SARS-CoV-2 Fusion

HIV in Blood Plasma

Last Universal Common Ancestor

Biosites: Blood Plasma

Lipid Droplets

Measles Virus Proteins

Excitatory and Inhibitory Synapses

Kinetochore

Bacteriophage T4 Infection

Model of a Mycoplasma Cell

Biosites: Red Blood Cell

CytoSkeleton

Biosites: Muscle

Myelin

HIV-Infected Cell

Autophagy

Blood

Respiratory Droplet

Biosites: Basement Membrane

Casein Micelle and Fat Globule in Milk

Abiogenesis

Phage-based COVID-19 Vaccine

Myoglobin in a Whale Muscle Cell

Red Blood Cell Cytoskeleton

Mycoplasma mycoides

SARS-CoV-2 mRNA Vaccine

Vascular Endothelial Growth Factor (VegF) Signaling