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.

Myohemerythrin

Myoglobin Fold

Collagen

Z-DNA

DPG-Hemoglobin Complex

Immunoglobulin G (IgG)

Lac Repressor

Cytochrome c

Oxyhemoglobin

Transfer Ribonucleic Acid (tRNA)

A-DNA

TATA-Binding Protein (TBP)

Trypsin

Hemoglobin (1000)

Tomato Bushy Stunt Virus (TBSV)

Cytochrome c (unbound)

Intermolecular Contacts in Hemoglobin S

B-DNA

Aspartate Transcarbamoylase (ATCase)

DNA

Induced Lac Repressor

Deoxyhemoglobin

Hemoglobin

Lysozyme (488)

Deoxyribonucleic Acid (DNA)

Myoglobin

Crambin

Carboxypeptidase A

Hemoglobin S

Ribonuclease S

Lysozyme (512)

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

Bacteriophage T4 Infection

Chloroplast

Casein Micelle and Fat Globule in Milk

Cellulose Synthase

Escherichia coli

SARS-CoV-2 Fusion

Autophagy

Insulin Release

SARS-CoV-2 mRNA Vaccine

SARS-CoV-2 and Neutralizing Antibodies

Biosites: Red Blood Cell

Myelin

Excitatory and Inhibitory Synapses

HIV-Infected Cell

Immunological Synapse

HIV Vaccine

Respiratory Droplet

Blood

Biosites: Muscle

RecA and DNA

Mycoplasma mycoides

Biosites: Nucleus

Biosites: Blood Plasma

Kinetochore

Biosites: Basement Membrane

JCVI-syn3A Minimal Cell

Phage-based COVID-19 Vaccine

Last Universal Common Ancestor

Biosites: Cytoplasm

CytoSkeleton

Abiogenesis

Caulobacter Polar Microdomain

Model of a Mycoplasma Cell

Coronavirus

Transfer RNA and Gag Protein

HIV in Blood Plasma

Insulin Action

Red Blood Cell Cytoskeleton

Ebola Virus

Influenza Virus

Measles Virus Proteins

Collagen and Extracellular Matrix

Influenza Vaccine

Escherichia coli Bacterium

Lipid Droplets

Zika Virus

Coronavirus Life Cycle

Vascular Endothelial Growth Factor (VegF) Signaling

Poliovirus Neutralization

Myoglobin in a Whale Muscle Cell