Molecule of the Month
January 2022

Golgi Casein Kinase

Casein and many other secreted proteins are phosphorylated by Golgi casein kinase


3D View:  5YH2




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.

2022 Video Challenge for High School Students

Molecular Mechanisms of Cancer

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 18 and April 25, 2022.

Quick Links

The Challenge | Learn | Participate | Resources | Rules

2022 Video Challenge key visual: synaptic region with one fused vesicle
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
The SARS-CoV-2 Virion: Magnifying the Miniscule with Models of Digital, Plastic, and Paper by Samuel A. McKie, Chapel Prints Co
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.


Carboxypeptidase A

Hemoglobin S


Cytochrome c (unbound)


Myoglobin Fold

Aspartate Transcarbamoylase (ATCase)

Ribonuclease S



Immunoglobulin G (IgG)



Lac Repressor

Intermolecular Contacts in Hemoglobin S

DPG-Hemoglobin Complex


Hemoglobin (1000)

Cytochrome c


Lysozyme (488)



Tomato Bushy Stunt Virus (TBSV)

Induced Lac Repressor

Transfer Ribonucleic Acid (tRNA)

Deoxyribonucleic Acid (DNA)


Lysozyme (512)

TATA-Binding Protein (TBP)

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

Poliovirus Neutralization

Biosites: Red Blood Cell

Ebola Virus


Immunological Synapse


Respiratory Droplet


Cellulose Synthase

Lipid Droplets

HIV in Blood Plasma

Influenza Vaccine

Coronavirus Life Cycle

SARS-CoV-2 and Neutralizing Antibodies

Escherichia coli Bacterium


Myoglobin in a Whale Muscle Cell

Biosites: Cytoplasm

Escherichia coli

SARS-CoV-2 mRNA Vaccine

Casein Micelle and Fat Globule in Milk

Measles Virus Proteins

Transfer RNA and Gag Protein

SARS-CoV-2 Fusion

Last Universal Common Ancestor

Zika Virus

Biosites: Nucleus


Collagen and Extracellular Matrix

Insulin Action

Mycoplasma mycoides


Red Blood Cell Cytoskeleton

Excitatory and Inhibitory Synapses

Biosites: Blood Plasma

Biosites: Basement Membrane


Biosites: Muscle

RecA and DNA