Molecule of the Month
October 2026

Celebrating 55 Years of the PDB

Enabling the rapid evolution of protein structure prediction and design

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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.

B-DNA

Oxyhemoglobin

TATA-Binding Protein (TBP)

Deoxyhemoglobin

Ribonuclease S

Intermolecular Contacts in Hemoglobin S

Lysozyme (488)

Hemoglobin S

Lysozyme (512)

Collagen

Cytochrome c (unbound)

DNA

Immunoglobulin G (IgG)

Hemoglobin

DPG-Hemoglobin Complex

Tomato Bushy Stunt Virus (TBSV)

Aspartate Transcarbamoylase (ATCase)

Myohemerythrin

Deoxyribonucleic Acid (DNA)

Cytochrome c

Transfer Ribonucleic Acid (tRNA)

Carboxypeptidase A

Myoglobin

Hemoglobin (1000)

Lac Repressor

Induced Lac Repressor

A-DNA

Trypsin

Myoglobin Fold

Z-DNA

Crambin

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

Escherichia coli Bacterium

Last Universal Common Ancestor

Autophagy

Influenza Virus

Biosites: Nucleus

Blood

Respiratory Droplet

Phage-based COVID-19 Vaccine

Casein Micelle and Fat Globule in Milk

HIV Vaccine

Zika Virus

SARS-CoV-2 and Neutralizing Antibodies

JCVI-syn3A Minimal Cell

Kinetochore

Immunological Synapse

Model of a Mycoplasma Cell

RecA and DNA

Vascular Endothelial Growth Factor (VegF) Signaling

Biosites: Basement Membrane

Insulin Action

Lipid Droplets

HIV in Blood Plasma

Bacteriophage T4 Infection

Mycoplasma mycoides

Biosites: Blood Plasma

CytoSkeleton

Poliovirus Neutralization

Abiogenesis

Cellulose Synthase

Coronavirus

HIV-Infected Cell

Escherichia coli

Excitatory and Inhibitory Synapses

Influenza Vaccine

Measles Virus Proteins

Myelin

Myoglobin in a Whale Muscle Cell

Biosites: Red Blood Cell

Chloroplast

Transfer RNA and Gag Protein

SARS-CoV-2 Fusion

Collagen and Extracellular Matrix

Coronavirus Life Cycle

Caulobacter Polar Microdomain

Insulin Release

Biosites: Muscle

SARS-CoV-2 mRNA Vaccine

Red Blood Cell Cytoskeleton

Ebola Virus

Biosites: Cytoplasm