Molecule of the Month
January 2023

Plastic-eating Enzymes

Researchers are looking to Nature to find ways to dispose of discarded plastic.


3D View:  5Y0M




Health Focus: Cancer Biology and Therapeutics

Cells in our bodies are carefully regulated so that they divide, grow, and die according to the best plan for keeping us alive. When they lose these controls, they can grow into deadly cancers. Atomic structures have revealed how cell growth is normally controlled, and how cancer cells circumvent these essential controls. Explore PDB-101 Resources to learn about proteins related to cancer biology and therapeutics.

2023 Video Challenge for High School Students

Molecular Mechanisms of Targeted Cancer Therapies

Entries for the Video Challenge can be submitted now until April 24, 11:59 pm PST. Award winners will be announced on May 16.

Quick Links

The Challenge | Submit | Learn | Participate

2023 Video Challenge key visual
Learn: Materials for Exploration
PDB-101 resources and 3D structures of COVID-19 proteins.
Teach: Curricula
The RCSB PDB Curricula provide authentic, hands-on teaching materials, individual and group activities and assessment suggestions.
Education Corner: Using PDB Resources
Fundamentals of Biochemistry: A free online biochemistry textbook with interactive molecular and mathematical modeling by Henry Jakubowski (Professor Emertius)
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 ( All rights reserved.

TATA-Binding Protein (TBP)


Deoxyribonucleic Acid (DNA)


Lysozyme (512)

Cytochrome c (unbound)

Immunoglobulin G (IgG)





Hemoglobin (1000)

Tomato Bushy Stunt Virus (TBSV)


Lac Repressor

DPG-Hemoglobin Complex

Carboxypeptidase A

Ribonuclease S


Lysozyme (488)


Myoglobin Fold


Transfer Ribonucleic Acid (tRNA)

Hemoglobin S

Intermolecular Contacts in Hemoglobin S

Aspartate Transcarbamoylase (ATCase)

Induced Lac Repressor



Cytochrome c

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

Biosites: Cytoplasm

Ebola Virus

Red Blood Cell Cytoskeleton

Biosites: Nucleus

Influenza Vaccine

HIV Vaccine


Escherichia coli


Myoglobin in a Whale Muscle Cell

Biosites: Muscle


Vascular Endothelial Growth Factor (VegF) Signaling

Last Universal Common Ancestor

JCVI-syn3A Minimal Cell

Respiratory Droplet

Caulobacter Polar Microdomain


Collagen and Extracellular Matrix


Measles Virus Proteins

Mycoplasma mycoides

Biosites: Red Blood Cell

Zika Virus

Insulin Action

Transfer RNA and Gag Protein

SARS-CoV-2 mRNA Vaccine

HIV in Blood Plasma

RecA and DNA

Cellulose Synthase

Excitatory and Inhibitory Synapses

Poliovirus Neutralization

Model of a Mycoplasma Cell

HIV-Infected Cell

SARS-CoV-2 Fusion

Escherichia coli Bacterium

Phage-based COVID-19 Vaccine

Casein Micelle and Fat Globule in Milk

SARS-CoV-2 and Neutralizing Antibodies

Insulin Release

Lipid Droplets


Biosites: Blood Plasma

Biosites: Basement Membrane

Coronavirus Life Cycle


Immunological Synapse