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.

Aspartate Transcarbamoylase (ATCase)

Hemoglobin S

Hemoglobin

Deoxyribonucleic Acid (DNA)

Lac Repressor

Cytochrome c

Lysozyme (512)

Hemoglobin (1000)

Carboxypeptidase A

Myohemerythrin

TATA-Binding Protein (TBP)

DPG-Hemoglobin Complex

Oxyhemoglobin

Myoglobin Fold

Cytochrome c (unbound)

Ribonuclease S

B-DNA

Crambin

Transfer Ribonucleic Acid (tRNA)

DNA

Immunoglobulin G (IgG)

Intermolecular Contacts in Hemoglobin S

A-DNA

Collagen

Myoglobin

Tomato Bushy Stunt Virus (TBSV)

Deoxyhemoglobin

Lysozyme (488)

Trypsin

Induced Lac Repressor

Z-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

Cellulose Synthase

Escherichia coli Bacterium

Lipid Droplets

Biosites: Blood Plasma

Ebola Virus

Kinetochore

Coronavirus Life Cycle

Autophagy

Immunological Synapse

Influenza Vaccine

Measles Virus Proteins

Biosites: Muscle

Biosites: Red Blood Cell

Mycoplasma mycoides

Red Blood Cell Cytoskeleton

Myelin

Casein Micelle and Fat Globule in Milk

Insulin Release

Caulobacter Polar Microdomain

Biosites: Basement Membrane

Respiratory Droplet

CytoSkeleton

Insulin Action

Biosites: Cytoplasm

Excitatory and Inhibitory Synapses

Model of a Mycoplasma Cell

Chloroplast

HIV in Blood Plasma

RecA and DNA

SARS-CoV-2 and Neutralizing Antibodies

Bacteriophage T4 Infection

Coronavirus

Transfer RNA and Gag Protein

SARS-CoV-2 mRNA Vaccine

Influenza Virus

Poliovirus Neutralization

Vascular Endothelial Growth Factor (VegF) Signaling

Zika Virus

HIV Vaccine

Escherichia coli

Myoglobin in a Whale Muscle Cell

HIV-Infected Cell

Last Universal Common Ancestor

Biosites: Nucleus

Phage-based COVID-19 Vaccine

JCVI-syn3A Minimal Cell

SARS-CoV-2 Fusion

Blood

Collagen and Extracellular Matrix

Abiogenesis