Molecule of the Month
December 2022

Click Chemistry

A modular approach to chemistry simplifies the construction of complex protein-targeting molecules.


3D View:  1Q83




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

RCSB PDB invites all high school students to tell a two-minute story that combines structural Biology and Public Health. Videos can be submited between January 17 and April 24, 2023.

Quick Links

The Challenge | Learn | Participate | Resources | Rules

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
Learn about Animating Photosynthesis from artist Chris FitzGerald
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.


Cytochrome c

Deoxyribonucleic Acid (DNA)


Carboxypeptidase A

Hemoglobin S




Tomato Bushy Stunt Virus (TBSV)



Cytochrome c (unbound)

Ribonuclease S

Lysozyme (488)

DPG-Hemoglobin Complex






Hemoglobin (1000)

Transfer Ribonucleic Acid (tRNA)

TATA-Binding Protein (TBP)

Immunoglobulin G (IgG)

Intermolecular Contacts in Hemoglobin S

Aspartate Transcarbamoylase (ATCase)

Lac Repressor

Induced Lac Repressor

Lysozyme (512)

Myoglobin Fold

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

Measles Virus Proteins

Biosites: Red Blood Cell



HIV in Blood Plasma


Cellulose Synthase


Phage-based COVID-19 Vaccine


Transfer RNA and Gag Protein

Insulin Release

Influenza Vaccine

Ebola Virus

Excitatory and Inhibitory Synapses

Biosites: Nucleus

Last Universal Common Ancestor

Escherichia coli Bacterium

Red Blood Cell Cytoskeleton

Escherichia coli

Poliovirus Neutralization


Biosites: Blood Plasma

RecA and DNA

Biosites: Muscle

SARS-CoV-2 and Neutralizing Antibodies

Caulobacter Polar Microdomain

SARS-CoV-2 mRNA Vaccine

Coronavirus Life Cycle

Casein Micelle and Fat Globule in Milk

Model of a Mycoplasma Cell

HIV Vaccine

Vascular Endothelial Growth Factor (VegF) Signaling

Biosites: Cytoplasm

Lipid Droplets

Insulin Action

Immunological Synapse


Collagen and Extracellular Matrix

Mycoplasma mycoides

JCVI-syn3A Minimal Cell

Myoglobin in a Whale Muscle Cell

Respiratory Droplet

Zika Virus

SARS-CoV-2 Fusion

Biosites: Basement Membrane