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

Oxyhemoglobin

Transfer Ribonucleic Acid (tRNA)

Myoglobin

B-DNA

Tomato Bushy Stunt Virus (TBSV)

Z-DNA

Cytochrome c (unbound)

Deoxyribonucleic Acid (DNA)

A-DNA

Myoglobin Fold

Ribonuclease S

Crambin

Induced Lac Repressor

Intermolecular Contacts in Hemoglobin S

Lac Repressor

Trypsin

Myohemerythrin

TATA-Binding Protein (TBP)

Immunoglobulin G (IgG)

Deoxyhemoglobin

Cytochrome c

Hemoglobin S

DPG-Hemoglobin Complex

DNA

Collagen

Aspartate Transcarbamoylase (ATCase)

Lysozyme (512)

Lysozyme (488)

Carboxypeptidase A

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

RecA and DNA

Caulobacter Polar Microdomain

Biosites: Muscle

Red Blood Cell Cytoskeleton

Abiogenesis

HIV-Infected Cell

Lipid Droplets

Vascular Endothelial Growth Factor (VegF) Signaling

CytoSkeleton

Phage-based COVID-19 Vaccine

HIV in Blood Plasma

Insulin Action

Biosites: Nucleus

Blood

Model of a Mycoplasma Cell

Insulin Release

Excitatory and Inhibitory Synapses

Influenza Vaccine

Biosites: Basement Membrane

Measles Virus Proteins

Immunological Synapse

SARS-CoV-2 Fusion

Coronavirus

JCVI-syn3A Minimal Cell

Influenza Virus

Casein Micelle and Fat Globule in Milk

Cellulose Synthase

Transfer RNA and Gag Protein

Zika Virus

Last Universal Common Ancestor

HIV Vaccine

Escherichia coli

Biosites: Cytoplasm

Escherichia coli Bacterium

Autophagy

Mycoplasma mycoides

SARS-CoV-2 mRNA Vaccine

Collagen and Extracellular Matrix

Respiratory Droplet

Ebola Virus

Biosites: Blood Plasma

SARS-CoV-2 and Neutralizing Antibodies

Myelin

Myoglobin in a Whale Muscle Cell

Kinetochore

Coronavirus Life Cycle

Biosites: Red Blood Cell

Poliovirus Neutralization

Bacteriophage T4 Infection

Chloroplast