Molecule of the Month
March 2026

Lenacapavir

A potent and long-acting drug that targets the HIV capsid

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PDB data help explain fundamental biology, biomedicine, bioengineering/biotechnology, and energy sciences
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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.

Deoxyribonucleic Acid (DNA)

DNA

Tomato Bushy Stunt Virus (TBSV)

Carboxypeptidase A

Collagen

Cytochrome c (unbound)

Induced Lac Repressor

Hemoglobin S

Deoxyhemoglobin

A-DNA

Transfer Ribonucleic Acid (tRNA)

Intermolecular Contacts in Hemoglobin S

Trypsin

Crambin

Lac Repressor

Lysozyme (488)

Immunoglobulin G (IgG)

Myohemerythrin

Z-DNA

Ribonuclease S

Aspartate Transcarbamoylase (ATCase)

Cytochrome c

Lysozyme (512)

Hemoglobin

TATA-Binding Protein (TBP)

Oxyhemoglobin

Myoglobin

DPG-Hemoglobin Complex

Myoglobin Fold

B-DNA

Hemoglobin (1000)

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

Biosites: Basement Membrane

Caulobacter Polar Microdomain

Cellulose Synthase

Mycoplasma mycoides

Red Blood Cell Cytoskeleton

Escherichia coli Bacterium

Insulin Release

Casein Micelle and Fat Globule in Milk

Myelin

HIV Vaccine

Collagen and Extracellular Matrix

Zika Virus

Biosites: Muscle

HIV in Blood Plasma

SARS-CoV-2 and Neutralizing Antibodies

Immunological Synapse

Biosites: Cytoplasm

Model of a Mycoplasma Cell

Abiogenesis

HIV-Infected Cell

Ebola Virus

CytoSkeleton

SARS-CoV-2 Fusion

Vascular Endothelial Growth Factor (VegF) Signaling

Autophagy

Influenza Vaccine

Poliovirus Neutralization

SARS-CoV-2 mRNA Vaccine

Lipid Droplets

Chloroplast

Phage-based COVID-19 Vaccine

Measles Virus Proteins

Escherichia coli

Last Universal Common Ancestor

Insulin Action

Excitatory and Inhibitory Synapses

Biosites: Blood Plasma

Biosites: Red Blood Cell

Myoglobin in a Whale Muscle Cell

Coronavirus

Bacteriophage T4 Infection

Blood

JCVI-syn3A Minimal Cell

RecA and DNA

Influenza Virus

Biosites: Nucleus

Respiratory Droplet

Kinetochore

Coronavirus Life Cycle

Transfer RNA and Gag Protein