Molecule of the Month
July 2025

Capturing Beta-Lactamase in Action

Researchers visualize the mechanism of antibiotic resistance

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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.

Deoxyhemoglobin

Myoglobin

Oxyhemoglobin

Myoglobin Fold

Collagen

Aspartate Transcarbamoylase (ATCase)

Induced Lac Repressor

Transfer Ribonucleic Acid (tRNA)

Hemoglobin S

Lysozyme (512)

Lac Repressor

Ribonuclease S

Immunoglobulin G (IgG)

B-DNA

Hemoglobin

Cytochrome c

DNA

Carboxypeptidase A

Deoxyribonucleic Acid (DNA)

Z-DNA

Tomato Bushy Stunt Virus (TBSV)

Cytochrome c (unbound)

TATA-Binding Protein (TBP)

Intermolecular Contacts in Hemoglobin S

Crambin

Hemoglobin (1000)

A-DNA

Myohemerythrin

DPG-Hemoglobin Complex

Lysozyme (488)

Trypsin

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-Infected Cell

Influenza Vaccine

RecA and DNA

Insulin Release

Coronavirus

Ebola Virus

Chloroplast

Insulin Action

Mycoplasma mycoides

Myoglobin in a Whale Muscle Cell

Escherichia coli Bacterium

Excitatory and Inhibitory Synapses

SARS-CoV-2 and Neutralizing Antibodies

Abiogenesis

Respiratory Droplet

Casein Micelle and Fat Globule in Milk

SARS-CoV-2 Fusion

Cellulose Synthase

Collagen and Extracellular Matrix

Kinetochore

Lipid Droplets

Phage-based COVID-19 Vaccine

Escherichia coli

CytoSkeleton

Poliovirus Neutralization

Autophagy

Coronavirus Life Cycle

Model of a Mycoplasma Cell

SARS-CoV-2 mRNA Vaccine

HIV in Blood Plasma

Myelin

Bacteriophage T4 Infection

Biosites: Blood Plasma

Biosites: Muscle

HIV Vaccine

Vascular Endothelial Growth Factor (VegF) Signaling

Blood

JCVI-syn3A Minimal Cell

Red Blood Cell Cytoskeleton

Measles Virus Proteins

Zika Virus

Transfer RNA and Gag Protein

Last Universal Common Ancestor

Caulobacter Polar Microdomain

Biosites: Cytoplasm

Biosites: Basement Membrane

Immunological Synapse

Influenza Virus

Biosites: Red Blood Cell

Biosites: Nucleus