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.

Intermolecular Contacts in Hemoglobin S

Oxyhemoglobin

Lac Repressor

Ribonuclease S

Deoxyribonucleic Acid (DNA)

Myoglobin Fold

Aspartate Transcarbamoylase (ATCase)

Immunoglobulin G (IgG)

B-DNA

Lysozyme (512)

DNA

Induced Lac Repressor

Tomato Bushy Stunt Virus (TBSV)

Myoglobin

Lysozyme (488)

Myohemerythrin

Hemoglobin S

DPG-Hemoglobin Complex

A-DNA

Deoxyhemoglobin

Hemoglobin

Transfer Ribonucleic Acid (tRNA)

Z-DNA

Trypsin

Collagen

Carboxypeptidase A

Cytochrome c (unbound)

Crambin

Cytochrome c

Hemoglobin (1000)

TATA-Binding Protein (TBP)

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: Blood Plasma

RecA and DNA

Cellulose Synthase

Respiratory Droplet

Bacteriophage T4 Infection

Escherichia coli

Abiogenesis

CytoSkeleton

Excitatory and Inhibitory Synapses

Biosites: Nucleus

Blood

Biosites: Red Blood Cell

Influenza Vaccine

Autophagy

Lipid Droplets

Zika Virus

Escherichia coli Bacterium

Casein Micelle and Fat Globule in Milk

Poliovirus Neutralization

Vascular Endothelial Growth Factor (VegF) Signaling

Myelin

SARS-CoV-2 and Neutralizing Antibodies

Insulin Action

SARS-CoV-2 mRNA Vaccine

Coronavirus Life Cycle

Immunological Synapse

Measles Virus Proteins

Model of a Mycoplasma Cell

Kinetochore

Ebola Virus

Chloroplast

HIV in Blood Plasma

Last Universal Common Ancestor

Insulin Release

JCVI-syn3A Minimal Cell

Phage-based COVID-19 Vaccine

Red Blood Cell Cytoskeleton

Collagen and Extracellular Matrix

Biosites: Basement Membrane

HIV Vaccine

Transfer RNA and Gag Protein

Influenza Virus

HIV-Infected Cell

Caulobacter Polar Microdomain

Coronavirus

Biosites: Muscle

Biosites: Cytoplasm

Myoglobin in a Whale Muscle Cell

Mycoplasma mycoides

SARS-CoV-2 Fusion