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.

Lysozyme (512)

Hemoglobin (1000)

A-DNA

Aspartate Transcarbamoylase (ATCase)

DPG-Hemoglobin Complex

Z-DNA

Cytochrome c (unbound)

Oxyhemoglobin

Tomato Bushy Stunt Virus (TBSV)

Carboxypeptidase A

Induced Lac Repressor

Immunoglobulin G (IgG)

Deoxyribonucleic Acid (DNA)

Myoglobin Fold

Cytochrome c

Lac Repressor

Hemoglobin S

Intermolecular Contacts in Hemoglobin S

Trypsin

Myoglobin

Deoxyhemoglobin

B-DNA

Collagen

Ribonuclease S

Hemoglobin

Transfer Ribonucleic Acid (tRNA)

Myohemerythrin

Crambin

DNA

Lysozyme (488)

TATA-Binding Protein (TBP)

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 and Neutralizing Antibodies

Biosites: Muscle

Respiratory Droplet

Blood

Myelin

Coronavirus

Caulobacter Polar Microdomain

Poliovirus Neutralization

Influenza Vaccine

Kinetochore

HIV-Infected Cell

Biosites: Nucleus

JCVI-syn3A Minimal Cell

Abiogenesis

HIV in Blood Plasma

HIV Vaccine

Red Blood Cell Cytoskeleton

Ebola Virus

Chloroplast

Cellulose Synthase

RecA and DNA

Coronavirus Life Cycle

Excitatory and Inhibitory Synapses

Casein Micelle and Fat Globule in Milk

CytoSkeleton

Immunological Synapse

Model of a Mycoplasma Cell

Biosites: Red Blood Cell

Zika Virus

Bacteriophage T4 Infection

Last Universal Common Ancestor

SARS-CoV-2 mRNA Vaccine

Myoglobin in a Whale Muscle Cell

Phage-based COVID-19 Vaccine

Escherichia coli Bacterium

Mycoplasma mycoides

SARS-CoV-2 Fusion

Vascular Endothelial Growth Factor (VegF) Signaling

Biosites: Blood Plasma

Collagen and Extracellular Matrix

Influenza Virus

Insulin Action

Autophagy

Biosites: Cytoplasm

Measles Virus Proteins

Lipid Droplets

Escherichia coli

Biosites: Basement Membrane

Transfer RNA and Gag Protein

Insulin Release