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.

A-DNA

Cytochrome c

Z-DNA

Crambin

Deoxyribonucleic Acid (DNA)

Ribonuclease S

Induced Lac Repressor

Hemoglobin (1000)

Lysozyme (512)

Intermolecular Contacts in Hemoglobin S

Oxyhemoglobin

Immunoglobulin G (IgG)

Lac Repressor

Lysozyme (488)

Hemoglobin

DNA

Collagen

Carboxypeptidase A

Myoglobin Fold

Aspartate Transcarbamoylase (ATCase)

DPG-Hemoglobin Complex

Deoxyhemoglobin

Trypsin

Myohemerythrin

Myoglobin

Cytochrome c (unbound)

TATA-Binding Protein (TBP)

B-DNA

Hemoglobin S

Tomato Bushy Stunt Virus (TBSV)

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

SARS-CoV-2 and Neutralizing Antibodies

Biosites: Red Blood Cell

Transfer RNA and Gag Protein

Collagen and Extracellular Matrix

Biosites: Blood Plasma

Ebola Virus

Red Blood Cell Cytoskeleton

Poliovirus Neutralization

HIV-Infected Cell

Excitatory and Inhibitory Synapses

Last Universal Common Ancestor

Respiratory Droplet

Zika Virus

Chloroplast

Coronavirus Life Cycle

HIV Vaccine

Lipid Droplets

HIV in Blood Plasma

Influenza Vaccine

Immunological Synapse

Autophagy

Mycoplasma mycoides

Insulin Action

Kinetochore

Bacteriophage T4 Infection

Myelin

Biosites: Cytoplasm

Insulin Release

Casein Micelle and Fat Globule in Milk

Blood

RecA and DNA

Biosites: Nucleus

Escherichia coli Bacterium

Vascular Endothelial Growth Factor (VegF) Signaling

Influenza Virus

SARS-CoV-2 Fusion

SARS-CoV-2 mRNA Vaccine

Caulobacter Polar Microdomain

Biosites: Muscle

Abiogenesis

JCVI-syn3A Minimal Cell

CytoSkeleton

Measles Virus Proteins

Phage-based COVID-19 Vaccine

Cellulose Synthase

Coronavirus

Model of a Mycoplasma Cell

Myoglobin in a Whale Muscle Cell

Escherichia coli

Biosites: Basement Membrane