Molecule of the Month
September 2026

Biofilms

Bacterial communities glued together and protected by biological polymers

More

3D View:  4P00

Style

Color

Spin

Learn
PDB data help explain fundamental biology, biomedicine, bioengineering/biotechnology, and energy sciences
Feature Focus
Use PDB-101 resources to learn how researchers are using biology in industry
Teach
The RCSB PDB Curricula provide authentic, hands-on teaching materials, individual and group activities and assessment suggestions
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.

Crambin

Hemoglobin S

B-DNA

Collagen

Oxyhemoglobin

Induced Lac Repressor

Myoglobin

Trypsin

DNA

Cytochrome c

Hemoglobin

Deoxyhemoglobin

TATA-Binding Protein (TBP)

Carboxypeptidase A

Myoglobin Fold

Transfer Ribonucleic Acid (tRNA)

Deoxyribonucleic Acid (DNA)

Lysozyme (512)

Lysozyme (488)

Ribonuclease S

A-DNA

Lac Repressor

Z-DNA

Aspartate Transcarbamoylase (ATCase)

Cytochrome c (unbound)

Tomato Bushy Stunt Virus (TBSV)

Intermolecular Contacts in Hemoglobin S

DPG-Hemoglobin Complex

Hemoglobin (1000)

Immunoglobulin G (IgG)

Myohemerythrin

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

SARS-CoV-2 Fusion

Phage-based COVID-19 Vaccine

Insulin Release

Poliovirus Neutralization

HIV in Blood Plasma

Model of a Mycoplasma Cell

HIV-Infected Cell

Red Blood Cell Cytoskeleton

Zika Virus

Blood

Bacteriophage T4 Infection

HIV Vaccine

Insulin Action

Biosites: Muscle

Ebola Virus

Casein Micelle and Fat Globule in Milk

Chloroplast

Abiogenesis

SARS-CoV-2 mRNA Vaccine

Respiratory Droplet

Biosites: Basement Membrane

Biosites: Blood Plasma

Transfer RNA and Gag Protein

Influenza Virus

Coronavirus Life Cycle

Caulobacter Polar Microdomain

RecA and DNA

Escherichia coli Bacterium

Cellulose Synthase

Biosites: Cytoplasm

Escherichia coli

Biosites: Red Blood Cell

CytoSkeleton

Vascular Endothelial Growth Factor (VegF) Signaling

Lipid Droplets

Kinetochore

SARS-CoV-2 and Neutralizing Antibodies

Measles Virus Proteins

Biosites: Nucleus

Myoglobin in a Whale Muscle Cell

Last Universal Common Ancestor

Autophagy

Excitatory and Inhibitory Synapses

JCVI-syn3A Minimal Cell

Immunological Synapse

Coronavirus

Collagen and Extracellular Matrix

Myelin

Influenza Vaccine

Mycoplasma mycoides