Molecule of the Month
August 2021

Ribonuclease P

The ribozyme ribonuclease P cleaves pre-tRNA to form functional tRNA.


3D View:  6AHU




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

Thanks to all challenge participants, expert judges, teachers, parents, and voters who made this competition happen.

Congratulations to the 2021 Winners!

Winner, First Place Winner, Second Winner, Third Winner, Viewers Choice

Peninsula Liberty Academy Team
San Carlos, CA

West Windsor-Plainsboro High School South Team
West Windsor, NJ

East Brunswick High School Team
East Brunswick, NJ

Jericho High School Team
Jericho, NY

Celebrating 50 Years of Protein Data Bank
Celebrating 50 Years of Protein Data Bank

In 1971, the structural biology community established the single worldwide archive for macromolecular structure data–-the Protein Data Bank (PDB). In 2021, RCSB PDB and wwPDB are celebrating the 50th Anniversary of the PDB with symposia, materials, and more.

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
Exploring the Structure-Function Relationship with Digital and Physical 3D Models of Proteins by Maria Voigt, RCSB PDB
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.

DPG-Hemoglobin Complex

Deoxyribonucleic Acid (DNA)

Cytochrome c (unbound)


Tomato Bushy Stunt Virus (TBSV)

Aspartate Transcarbamoylase (ATCase)

Lac Repressor

Hemoglobin (1000)

Lysozyme (488)


TATA-Binding Protein (TBP)

Induced Lac Repressor

Intermolecular Contacts in Hemoglobin S

Transfer Ribonucleic Acid (tRNA)

Carboxypeptidase A

Hemoglobin S

Myoglobin Fold


Cytochrome c

Immunoglobulin G (IgG)




Lysozyme (512)






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

Mycoplasma mycoides

Measles Virus Proteins


HIV in Blood Plasma

Red Blood Cell Cytoskeleton

Biosites: Nucleus

SARS-CoV-2 and Neutralizing Antibodies

SARS-CoV-2 Fusion


Ebola Virus

Coronavirus Life Cycle

Biosites: Red Blood Cell

Lipid Droplets

SARS-CoV-2 mRNA Vaccine

Respiratory Droplet

Collagen and Extracellular Matrix

Biosites: Muscle

Cellulose Synthase

Excitatory and Inhibitory Synapses

Escherichia coli

Immunological Synapse


Myoglobin in a Whale Muscle Cell

Poliovirus Neutralization

Biosites: Cytoplasm

Influenza Vaccine

Escherichia coli Bacterium


Insulin Action

Biosites: Blood Plasma


Biosites: Basement Membrane

Zika Virus