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.

Hemoglobin (1000)

Cytochrome c

Lac Repressor

Immunoglobulin G (IgG)

Cytochrome c (unbound)

Deoxyribonucleic Acid (DNA)

TATA-Binding Protein (TBP)

Hemoglobin S

Aspartate Transcarbamoylase (ATCase)

Induced Lac Repressor

Myohemerythrin

Oxyhemoglobin

B-DNA

Ribonuclease S

Myoglobin

Deoxyhemoglobin

Lysozyme (512)

Collagen

Lysozyme (488)

Hemoglobin

DPG-Hemoglobin Complex

Myoglobin Fold

A-DNA

Transfer Ribonucleic Acid (tRNA)

Trypsin

Z-DNA

DNA

Carboxypeptidase A

Tomato Bushy Stunt Virus (TBSV)

Crambin

Intermolecular Contacts in Hemoglobin S

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

Respiratory Droplet

Caulobacter Polar Microdomain

Immunological Synapse

Red Blood Cell Cytoskeleton

Vascular Endothelial Growth Factor (VegF) Signaling

Biosites: Nucleus

Influenza Vaccine

Model of a Mycoplasma Cell

HIV-Infected Cell

Cellulose Synthase

Myelin

Myoglobin in a Whale Muscle Cell

Abiogenesis

Casein Micelle and Fat Globule in Milk

Lipid Droplets

Kinetochore

Biosites: Muscle

Excitatory and Inhibitory Synapses

Measles Virus Proteins

Chloroplast

Collagen and Extracellular Matrix

Influenza Virus

Biosites: Cytoplasm

CytoSkeleton

Escherichia coli

SARS-CoV-2 and Neutralizing Antibodies

RecA and DNA

JCVI-syn3A Minimal Cell

Biosites: Red Blood Cell

Escherichia coli Bacterium

Autophagy

SARS-CoV-2 mRNA Vaccine

Insulin Action

HIV Vaccine

Biosites: Basement Membrane

Last Universal Common Ancestor

Biosites: Blood Plasma

SARS-CoV-2 Fusion

Bacteriophage T4 Infection

Mycoplasma mycoides

Transfer RNA and Gag Protein

Phage-based COVID-19 Vaccine

Coronavirus

Zika Virus

HIV in Blood Plasma

Ebola Virus

Coronavirus Life Cycle

Blood

Insulin Release

Poliovirus Neutralization