Molecule of the Month
March 2023

Anaphase-Promoting Complex / Cyclosome

APC/C guards the checkpoints that regulate key steps in the cell cycle

More

3D View:  5a31

Style

Color

Spin

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 (www.hhmi.org). All rights reserved.

DNA

Myohemerythrin

Crambin

Intermolecular Contacts in Hemoglobin S

A-DNA

Z-DNA

Myoglobin

Lysozyme (488)

Lac Repressor

Cytochrome c (unbound)

Oxyhemoglobin

Hemoglobin

Collagen

Carboxypeptidase A

Transfer Ribonucleic Acid (tRNA)

Immunoglobulin G (IgG)

Cytochrome c

Hemoglobin (1000)

TATA-Binding Protein (TBP)

Deoxyhemoglobin

Deoxyribonucleic Acid (DNA)

Tomato Bushy Stunt Virus (TBSV)

Ribonuclease S

Aspartate Transcarbamoylase (ATCase)

Hemoglobin S

Trypsin

Lysozyme (512)

Induced Lac Repressor

DPG-Hemoglobin Complex

B-DNA

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

Cellulose Synthase

Chloroplast

Abiogenesis

Collagen and Extracellular Matrix

Red Blood Cell Cytoskeleton

Zika Virus

Biosites: Blood Plasma

Mycoplasma mycoides

Biosites: Muscle

Casein Micelle and Fat Globule in Milk

RecA and DNA

Lipid Droplets

SARS-CoV-2 and Neutralizing Antibodies

HIV-Infected Cell

Insulin Action

Escherichia coli

JCVI-syn3A Minimal Cell

HIV in Blood Plasma

Biosites: Nucleus

Insulin Release

Transfer RNA and Gag Protein

CytoSkeleton

Blood

Respiratory Droplet

SARS-CoV-2 mRNA Vaccine

Biosites: Red Blood Cell

Myoglobin in a Whale Muscle Cell

Immunological Synapse

Vascular Endothelial Growth Factor (VegF) Signaling

Biosites: Cytoplasm

Measles Virus Proteins

Poliovirus Neutralization

Excitatory and Inhibitory Synapses

Caulobacter Polar Microdomain

Phage-based COVID-19 Vaccine

SARS-CoV-2 Fusion

Last Universal Common Ancestor

Model of a Mycoplasma Cell

HIV Vaccine

Myelin

Coronavirus

Influenza Vaccine

Escherichia coli Bacterium

Coronavirus Life Cycle

Autophagy

Ebola Virus

Biosites: Basement Membrane

beta