Molecule of the Month
October 2026

Celebrating 55 Years of the PDB

Enabling the rapid evolution of protein structure prediction and design

More

3D View:  36CR

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.

Collagen

DNA

Lysozyme (488)

Deoxyribonucleic Acid (DNA)

Carboxypeptidase A

Crambin

Deoxyhemoglobin

Z-DNA

Myohemerythrin

A-DNA

Myoglobin Fold

Cytochrome c

Induced Lac Repressor

Aspartate Transcarbamoylase (ATCase)

Ribonuclease S

Trypsin

B-DNA

Hemoglobin (1000)

Cytochrome c (unbound)

Hemoglobin

Tomato Bushy Stunt Virus (TBSV)

Hemoglobin S

Lysozyme (512)

Myoglobin

TATA-Binding Protein (TBP)

Intermolecular Contacts in Hemoglobin S

Transfer Ribonucleic Acid (tRNA)

Immunoglobulin G (IgG)

Lac Repressor

DPG-Hemoglobin Complex

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

Phage-based COVID-19 Vaccine

Zika Virus

Coronavirus

Caulobacter Polar Microdomain

Influenza Virus

SARS-CoV-2 mRNA Vaccine

Biosites: Basement Membrane

Myelin

Biosites: Blood Plasma

Biosites: Cytoplasm

Escherichia coli Bacterium

Biosites: Nucleus

Transfer RNA and Gag Protein

CytoSkeleton

Casein Micelle and Fat Globule in Milk

Excitatory and Inhibitory Synapses

Chloroplast

Respiratory Droplet

Bacteriophage T4 Infection

Collagen and Extracellular Matrix

Abiogenesis

SARS-CoV-2 and Neutralizing Antibodies

Escherichia coli

Immunological Synapse

Kinetochore

Insulin Release

Vascular Endothelial Growth Factor (VegF) Signaling

HIV Vaccine

Measles Virus Proteins

Autophagy

RecA and DNA

Biosites: Red Blood Cell

Insulin Action

SARS-CoV-2 Fusion

Influenza Vaccine

Poliovirus Neutralization

Red Blood Cell Cytoskeleton

Coronavirus Life Cycle

Mycoplasma mycoides

Last Universal Common Ancestor

Cellulose Synthase

Myoglobin in a Whale Muscle Cell

Model of a Mycoplasma Cell

Blood

Biosites: Muscle

Lipid Droplets

JCVI-syn3A Minimal Cell

HIV in Blood Plasma

HIV-Infected Cell

Ebola Virus