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.

Hemoglobin S

Cytochrome c

A-DNA

Lac Repressor

Collagen

Ribonuclease S

Deoxyhemoglobin

DPG-Hemoglobin Complex

Intermolecular Contacts in Hemoglobin S

Transfer Ribonucleic Acid (tRNA)

Trypsin

Oxyhemoglobin

Induced Lac Repressor

Carboxypeptidase A

Crambin

Deoxyribonucleic Acid (DNA)

Myohemerythrin

Myoglobin

Hemoglobin

Lysozyme (512)

Z-DNA

Tomato Bushy Stunt Virus (TBSV)

Cytochrome c (unbound)

Lysozyme (488)

DNA

B-DNA

Myoglobin Fold

TATA-Binding Protein (TBP)

Immunoglobulin G (IgG)

Aspartate Transcarbamoylase (ATCase)

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

Blood

Insulin Release

Measles Virus Proteins

Collagen and Extracellular Matrix

Mycoplasma mycoides

Caulobacter Polar Microdomain

HIV in Blood Plasma

SARS-CoV-2 Fusion

Influenza Vaccine

HIV-Infected Cell

Lipid Droplets

Escherichia coli

Casein Micelle and Fat Globule in Milk

Abiogenesis

Ebola Virus

Transfer RNA and Gag Protein

Coronavirus Life Cycle

Immunological Synapse

CytoSkeleton

Red Blood Cell Cytoskeleton

Excitatory and Inhibitory Synapses

Cellulose Synthase

Biosites: Red Blood Cell

Vascular Endothelial Growth Factor (VegF) Signaling

Model of a Mycoplasma Cell

Myelin

Biosites: Basement Membrane

Autophagy

Biosites: Cytoplasm

Coronavirus

Biosites: Blood Plasma

RecA and DNA

SARS-CoV-2 mRNA Vaccine

Respiratory Droplet

Zika Virus

Chloroplast

Myoglobin in a Whale Muscle Cell

JCVI-syn3A Minimal Cell

HIV Vaccine

Kinetochore

Biosites: Nucleus

Poliovirus Neutralization

SARS-CoV-2 and Neutralizing Antibodies

Last Universal Common Ancestor

Bacteriophage T4 Infection

Biosites: Muscle

Insulin Action

Phage-based COVID-19 Vaccine

Escherichia coli Bacterium

Influenza Virus