Molecule of the Month
November 2020

Adenylyl Cyclase

Adenylyl cyclase creates second messengers to amplify signals from G-protein coupled receptors


3D View:  6r3q




Health Focus: Drugs and the Brain

The brain orchestrates everything we do, sending signals through the nervous system to control different parts of our body. The brain is also the home of our thoughts and consciousness, as neurons process the input from our senses and store what they find as memories. Many drugs are available to help tune the function of the brain and nervous system when there are problems. Unfortunately, the effects of some drugs are hard to control and can lead to abuse and addiction. Explore PDB-101 Resources to learn about proteins related to our nervous system and mental health.

2021 Video Challenge for High School Students

Molecular Mechanisms of Drugs for Mental Disorders

RCSB PDB invites all high school students to tell a two-minute story that combines structural Biology and Medicine. Videos can be submited between January 12 and April 27, 2021.

Quick Links

The Challenge | Learn | Participate

2021 Video Challenge key visual: synaptic region with one fused vesicle
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
Using PDB Structures to Visualize Science by medical illustrator Veronica Falconieri Hays (Falconeri Visuals).
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.

Lysozyme (512)

Myoglobin Fold


Deoxyribonucleic Acid (DNA)

Hemoglobin S


Hemoglobin (1000)

DPG-Hemoglobin Complex


Tomato Bushy Stunt Virus (TBSV)

Lysozyme (488)



Transfer Ribonucleic Acid (tRNA)

Cytochrome c




Carboxypeptidase A

TATA-Binding Protein (TBP)

Intermolecular Contacts in Hemoglobin S

Immunoglobulin G (IgG)




Induced Lac Repressor

Cytochrome c (unbound)

Lac Repressor

Aspartate Transcarbamoylase (ATCase)


Ribonuclease S

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: Blood Plasma

Ebola Virus

Biosites: Nucleus



Biosites: Cytoplasm

Lipid Droplets

Coronavirus Life Cycle

Excitatory and Inhibitory Synapses


Immunological Synapse

Poliovirus Neutralization

Insulin Action

Respiratory Droplet


Zika Virus

Biosites: Muscle

SARS-CoV-2 and Neutralizing Antibodies

HIV in Blood Plasma


SARS-CoV-2 Fusion

Escherichia coli

Mycoplasma mycoides

Biosites: Red Blood Cell

Influenza Vaccine

Measles Virus Proteins

Biosites: Basement Membrane