Molecule of the Month
August 2025

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An unexpected link between viruses and the brain

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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.

Aspartate Transcarbamoylase (ATCase)

Cytochrome c (unbound)

Tomato Bushy Stunt Virus (TBSV)

Lac Repressor

Immunoglobulin G (IgG)

Trypsin

Hemoglobin

Deoxyribonucleic Acid (DNA)

Collagen

Z-DNA

B-DNA

Cytochrome c

Carboxypeptidase A

Hemoglobin (1000)

Transfer Ribonucleic Acid (tRNA)

Lysozyme (488)

Induced Lac Repressor

Intermolecular Contacts in Hemoglobin S

A-DNA

DPG-Hemoglobin Complex

Ribonuclease S

Oxyhemoglobin

DNA

Lysozyme (512)

Myohemerythrin

Crambin

TATA-Binding Protein (TBP)

Deoxyhemoglobin

Hemoglobin S

Myoglobin

Myoglobin Fold

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

Collagen and Extracellular Matrix

Coronavirus

Cellulose Synthase

Biosites: Nucleus

Measles Virus Proteins

Poliovirus Neutralization

Insulin Action

Chloroplast

Zika Virus

Biosites: Muscle

Lipid Droplets

SARS-CoV-2 mRNA Vaccine

Ebola Virus

Abiogenesis

Bacteriophage T4 Infection

SARS-CoV-2 Fusion

Biosites: Cytoplasm

Insulin Release

SARS-CoV-2 and Neutralizing Antibodies

Mycoplasma mycoides

Transfer RNA and Gag Protein

Coronavirus Life Cycle

HIV Vaccine

Biosites: Red Blood Cell

Blood

JCVI-syn3A Minimal Cell

Casein Micelle and Fat Globule in Milk

Escherichia coli Bacterium

HIV-Infected Cell

HIV in Blood Plasma

Myoglobin in a Whale Muscle Cell

Biosites: Basement Membrane

Vascular Endothelial Growth Factor (VegF) Signaling

Biosites: Blood Plasma

Caulobacter Polar Microdomain

Phage-based COVID-19 Vaccine

RecA and DNA

Respiratory Droplet

Last Universal Common Ancestor

Autophagy

Kinetochore

Escherichia coli

Myelin

Influenza Virus

Excitatory and Inhibitory Synapses

CytoSkeleton

Influenza Vaccine

Immunological Synapse

Model of a Mycoplasma Cell

Red Blood Cell Cytoskeleton