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

Myoglobin

Myohemerythrin

Lysozyme (488)

Trypsin

Induced Lac Repressor

Collagen

Lysozyme (512)

Carboxypeptidase A

Z-DNA

Deoxyribonucleic Acid (DNA)

Cytochrome c

Hemoglobin S

Aspartate Transcarbamoylase (ATCase)

Lac Repressor

Cytochrome c (unbound)

Transfer Ribonucleic Acid (tRNA)

Crambin

TATA-Binding Protein (TBP)

Ribonuclease S

A-DNA

DPG-Hemoglobin Complex

DNA

Intermolecular Contacts in Hemoglobin S

Myoglobin Fold

Deoxyhemoglobin

Hemoglobin (1000)

Tomato Bushy Stunt Virus (TBSV)

Hemoglobin

Immunoglobulin G (IgG)

Oxyhemoglobin

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

Cellulose Synthase

Model of a Mycoplasma Cell

Myoglobin in a Whale Muscle Cell

Transfer RNA and Gag Protein

Influenza Virus

Biosites: Muscle

Biosites: Nucleus

Blood

Excitatory and Inhibitory Synapses

HIV-Infected Cell

Measles Virus Proteins

Escherichia coli

Abiogenesis

SARS-CoV-2 Fusion

Autophagy

Last Universal Common Ancestor

Coronavirus Life Cycle

HIV Vaccine

Chloroplast

Biosites: Blood Plasma

Mycoplasma mycoides

Bacteriophage T4 Infection

JCVI-syn3A Minimal Cell

Zika Virus

Biosites: Cytoplasm

Phage-based COVID-19 Vaccine

Casein Micelle and Fat Globule in Milk

Myelin

Coronavirus

CytoSkeleton

HIV in Blood Plasma

Biosites: Red Blood Cell

SARS-CoV-2 and Neutralizing Antibodies

Caulobacter Polar Microdomain

Immunological Synapse

Ebola Virus

Kinetochore

Insulin Release

Collagen and Extracellular Matrix

Poliovirus Neutralization

Influenza Vaccine

Insulin Action

Red Blood Cell Cytoskeleton

Lipid Droplets

RecA and DNA

Vascular Endothelial Growth Factor (VegF) Signaling

Biosites: Basement Membrane

SARS-CoV-2 mRNA Vaccine

Respiratory Droplet

Escherichia coli Bacterium