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.

Intermolecular Contacts in Hemoglobin S

Oxyhemoglobin

Ribonuclease S

Immunoglobulin G (IgG)

B-DNA

Deoxyhemoglobin

Lysozyme (512)

Myoglobin

Tomato Bushy Stunt Virus (TBSV)

Cytochrome c

Hemoglobin (1000)

Cytochrome c (unbound)

A-DNA

Hemoglobin

Aspartate Transcarbamoylase (ATCase)

Z-DNA

Carboxypeptidase A

Trypsin

Induced Lac Repressor

Lac Repressor

DPG-Hemoglobin Complex

Hemoglobin S

Myoglobin Fold

TATA-Binding Protein (TBP)

DNA

Myohemerythrin

Crambin

Deoxyribonucleic Acid (DNA)

Transfer Ribonucleic Acid (tRNA)

Lysozyme (488)

Collagen

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

Poliovirus Neutralization

Influenza Vaccine

Ebola Virus

Autophagy

Coronavirus Life Cycle

Coronavirus

Phage-based COVID-19 Vaccine

Kinetochore

SARS-CoV-2 Fusion

Respiratory Droplet

Biosites: Nucleus

Transfer RNA and Gag Protein

Caulobacter Polar Microdomain

Biosites: Muscle

Zika Virus

HIV in Blood Plasma

RecA and DNA

SARS-CoV-2 and Neutralizing Antibodies

Lipid Droplets

Bacteriophage T4 Infection

Abiogenesis

Chloroplast

Biosites: Basement Membrane

Insulin Action

Mycoplasma mycoides

SARS-CoV-2 mRNA Vaccine

Excitatory and Inhibitory Synapses

Red Blood Cell Cytoskeleton

Insulin Release

Last Universal Common Ancestor

Myelin

Escherichia coli Bacterium

Blood

Immunological Synapse

Casein Micelle and Fat Globule in Milk

Biosites: Red Blood Cell

HIV Vaccine

CytoSkeleton

Biosites: Blood Plasma

Collagen and Extracellular Matrix

Cellulose Synthase

Measles Virus Proteins

Influenza Virus

HIV-Infected Cell

JCVI-syn3A Minimal Cell

Biosites: Cytoplasm

Model of a Mycoplasma Cell

Vascular Endothelial Growth Factor (VegF) Signaling

Myoglobin in a Whale Muscle Cell