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.

Myoglobin

TATA-Binding Protein (TBP)

Oxyhemoglobin

Myoglobin Fold

DPG-Hemoglobin Complex

Cytochrome c

Deoxyhemoglobin

Immunoglobulin G (IgG)

Deoxyribonucleic Acid (DNA)

Lysozyme (488)

Collagen

Myohemerythrin

Cytochrome c (unbound)

Hemoglobin S

Induced Lac Repressor

Z-DNA

Crambin

Lac Repressor

Lysozyme (512)

B-DNA

Transfer Ribonucleic Acid (tRNA)

Aspartate Transcarbamoylase (ATCase)

Carboxypeptidase A

Hemoglobin

DNA

Tomato Bushy Stunt Virus (TBSV)

Trypsin

Intermolecular Contacts in Hemoglobin S

Hemoglobin (1000)

Ribonuclease S

A-DNA

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

HIV in Blood Plasma

Zika Virus

Abiogenesis

Myoglobin in a Whale Muscle Cell

SARS-CoV-2 Fusion

HIV-Infected Cell

Caulobacter Polar Microdomain

Bacteriophage T4 Infection

Biosites: Red Blood Cell

Cellulose Synthase

Escherichia coli Bacterium

Model of a Mycoplasma Cell

Poliovirus Neutralization

CytoSkeleton

Autophagy

Blood

Chloroplast

Red Blood Cell Cytoskeleton

JCVI-syn3A Minimal Cell

Vascular Endothelial Growth Factor (VegF) Signaling

RecA and DNA

SARS-CoV-2 mRNA Vaccine

Ebola Virus

Influenza Virus

Coronavirus

Immunological Synapse

Biosites: Muscle

Excitatory and Inhibitory Synapses

Last Universal Common Ancestor

Insulin Release

Transfer RNA and Gag Protein

HIV Vaccine

Insulin Action

Coronavirus Life Cycle

Mycoplasma mycoides

Escherichia coli

Biosites: Basement Membrane

SARS-CoV-2 and Neutralizing Antibodies

Influenza Vaccine

Lipid Droplets

Collagen and Extracellular Matrix

Myelin

Kinetochore

Biosites: Cytoplasm

Respiratory Droplet

Casein Micelle and Fat Globule in Milk

Biosites: Nucleus

Phage-based COVID-19 Vaccine

Measles Virus Proteins

Biosites: Blood Plasma