Molecule of the Month
May 2026

PROTACs and Molecular Glue Degraders

Therapeutic molecules that target proteins for degradation

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3D View:  5T35

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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.

Crambin

A-DNA

DPG-Hemoglobin Complex

Myoglobin

DNA

Ribonuclease S

Intermolecular Contacts in Hemoglobin S

Lac Repressor

Hemoglobin S

Oxyhemoglobin

Deoxyribonucleic Acid (DNA)

Lysozyme (488)

Hemoglobin

Induced Lac Repressor

Immunoglobulin G (IgG)

B-DNA

Lysozyme (512)

Myoglobin Fold

Aspartate Transcarbamoylase (ATCase)

Tomato Bushy Stunt Virus (TBSV)

TATA-Binding Protein (TBP)

Cytochrome c

Trypsin

Cytochrome c (unbound)

Collagen

Myohemerythrin

Carboxypeptidase A

Z-DNA

Hemoglobin (1000)

Deoxyhemoglobin

Transfer Ribonucleic Acid (tRNA)

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

HIV in Blood Plasma

Lipid Droplets

Escherichia coli

Vascular Endothelial Growth Factor (VegF) Signaling

Bacteriophage T4 Infection

HIV Vaccine

Caulobacter Polar Microdomain

Coronavirus

Zika Virus

Last Universal Common Ancestor

Red Blood Cell Cytoskeleton

Poliovirus Neutralization

Ebola Virus

Immunological Synapse

Excitatory and Inhibitory Synapses

Chloroplast

Insulin Action

Abiogenesis

Coronavirus Life Cycle

Escherichia coli Bacterium

Influenza Vaccine

Biosites: Muscle

Transfer RNA and Gag Protein

Influenza Virus

SARS-CoV-2 Fusion

Myelin

Autophagy

Collagen and Extracellular Matrix

Biosites: Nucleus

CytoSkeleton

Biosites: Blood Plasma

SARS-CoV-2 mRNA Vaccine

SARS-CoV-2 and Neutralizing Antibodies

Mycoplasma mycoides

Biosites: Red Blood Cell

Casein Micelle and Fat Globule in Milk

Blood

Insulin Release

Respiratory Droplet

Measles Virus Proteins

Biosites: Basement Membrane

Cellulose Synthase

JCVI-syn3A Minimal Cell

Kinetochore

RecA and DNA

Biosites: Cytoplasm

Model of a Mycoplasma Cell

Myoglobin in a Whale Muscle Cell

HIV-Infected Cell

Phage-based COVID-19 Vaccine