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 (1000)

B-DNA

Lac Repressor

Tomato Bushy Stunt Virus (TBSV)

Intermolecular Contacts in Hemoglobin S

Immunoglobulin G (IgG)

Induced Lac Repressor

TATA-Binding Protein (TBP)

Oxyhemoglobin

Ribonuclease S

Cytochrome c (unbound)

Deoxyhemoglobin

Myohemerythrin

Trypsin

Deoxyribonucleic Acid (DNA)

Lysozyme (488)

Carboxypeptidase A

Aspartate Transcarbamoylase (ATCase)

DNA

A-DNA

Transfer Ribonucleic Acid (tRNA)

Hemoglobin

Z-DNA

Lysozyme (512)

Crambin

Collagen

Hemoglobin S

Cytochrome c

DPG-Hemoglobin Complex

Myoglobin Fold

Myoglobin

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

RecA and DNA

Influenza Virus

Mycoplasma mycoides

Escherichia coli

Red Blood Cell Cytoskeleton

Kinetochore

HIV in Blood Plasma

Zika Virus

Excitatory and Inhibitory Synapses

Chloroplast

Insulin Release

Cellulose Synthase

Escherichia coli Bacterium

Transfer RNA and Gag Protein

Ebola Virus

Abiogenesis

Insulin Action

Biosites: Blood Plasma

SARS-CoV-2 mRNA Vaccine

Casein Micelle and Fat Globule in Milk

CytoSkeleton

Bacteriophage T4 Infection

Measles Virus Proteins

Coronavirus Life Cycle

Autophagy

Blood

Biosites: Nucleus

JCVI-syn3A Minimal Cell

HIV-Infected Cell

Caulobacter Polar Microdomain

Vascular Endothelial Growth Factor (VegF) Signaling

Myelin

Collagen and Extracellular Matrix

Phage-based COVID-19 Vaccine

Biosites: Cytoplasm

Influenza Vaccine

Immunological Synapse

Last Universal Common Ancestor

Lipid Droplets

Myoglobin in a Whale Muscle Cell

Biosites: Red Blood Cell

Biosites: Muscle

SARS-CoV-2 Fusion

Biosites: Basement Membrane

Poliovirus Neutralization

Respiratory Droplet

Model of a Mycoplasma Cell

SARS-CoV-2 and Neutralizing Antibodies

Coronavirus

HIV Vaccine