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.

Cytochrome c

Myoglobin

Myohemerythrin

Hemoglobin S

TATA-Binding Protein (TBP)

Intermolecular Contacts in Hemoglobin S

Oxyhemoglobin

Myoglobin Fold

Lysozyme (512)

Tomato Bushy Stunt Virus (TBSV)

Deoxyhemoglobin

B-DNA

Carboxypeptidase A

Aspartate Transcarbamoylase (ATCase)

Hemoglobin (1000)

Collagen

DPG-Hemoglobin Complex

Hemoglobin

A-DNA

Deoxyribonucleic Acid (DNA)

Immunoglobulin G (IgG)

Cytochrome c (unbound)

Transfer Ribonucleic Acid (tRNA)

Induced Lac Repressor

Trypsin

Z-DNA

Crambin

DNA

Ribonuclease S

Lysozyme (488)

Lac Repressor

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

Model of a Mycoplasma Cell

JCVI-syn3A Minimal Cell

HIV Vaccine

RecA and DNA

Casein Micelle and Fat Globule in Milk

Transfer RNA and Gag Protein

Bacteriophage T4 Infection

HIV-Infected Cell

Autophagy

Measles Virus Proteins

Last Universal Common Ancestor

Escherichia coli Bacterium

Excitatory and Inhibitory Synapses

Cellulose Synthase

Lipid Droplets

Biosites: Red Blood Cell

Myelin

Biosites: Nucleus

Ebola Virus

Biosites: Cytoplasm

Influenza Vaccine

Coronavirus

Phage-based COVID-19 Vaccine

Biosites: Basement Membrane

Abiogenesis

Biosites: Blood Plasma

Influenza Virus

Biosites: Muscle

Poliovirus Neutralization

Chloroplast

SARS-CoV-2 mRNA Vaccine

SARS-CoV-2 and Neutralizing Antibodies

Insulin Action

CytoSkeleton

Collagen and Extracellular Matrix

Myoglobin in a Whale Muscle Cell

Zika Virus

Kinetochore

Mycoplasma mycoides

SARS-CoV-2 Fusion

Immunological Synapse

Escherichia coli

Respiratory Droplet

Red Blood Cell Cytoskeleton

Coronavirus Life Cycle

Vascular Endothelial Growth Factor (VegF) Signaling

Caulobacter Polar Microdomain

Blood

Insulin Release