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.

Cytochrome c

Collagen

Intermolecular Contacts in Hemoglobin S

Deoxyribonucleic Acid (DNA)

Induced Lac Repressor

B-DNA

DNA

DPG-Hemoglobin Complex

Hemoglobin

A-DNA

Lysozyme (512)

TATA-Binding Protein (TBP)

Myohemerythrin

Deoxyhemoglobin

Hemoglobin S

Myoglobin Fold

Transfer Ribonucleic Acid (tRNA)

Z-DNA

Ribonuclease S

Lysozyme (488)

Hemoglobin (1000)

Carboxypeptidase A

Cytochrome c (unbound)

Tomato Bushy Stunt Virus (TBSV)

Oxyhemoglobin

Immunoglobulin G (IgG)

Crambin

Lac Repressor

Myoglobin

Aspartate Transcarbamoylase (ATCase)

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 in Blood Plasma

SARS-CoV-2 and Neutralizing Antibodies

Collagen and Extracellular Matrix

Mycoplasma mycoides

Immunological Synapse

Myelin

Abiogenesis

Autophagy

Biosites: Muscle

Chloroplast

SARS-CoV-2 Fusion

Biosites: Red Blood Cell

Poliovirus Neutralization

Model of a Mycoplasma Cell

RecA and DNA

Insulin Action

Last Universal Common Ancestor

Coronavirus Life Cycle

Biosites: Cytoplasm

Respiratory Droplet

Blood

Myoglobin in a Whale Muscle Cell

Lipid Droplets

Influenza Virus

Excitatory and Inhibitory Synapses

Influenza Vaccine

Vascular Endothelial Growth Factor (VegF) Signaling

Kinetochore

Ebola Virus

Biosites: Basement Membrane

Caulobacter Polar Microdomain

Insulin Release

Biosites: Nucleus

JCVI-syn3A Minimal Cell

Casein Micelle and Fat Globule in Milk

Escherichia coli Bacterium

HIV-Infected Cell

Coronavirus

Phage-based COVID-19 Vaccine

Zika Virus

Escherichia coli

Red Blood Cell Cytoskeleton

HIV Vaccine

Bacteriophage T4 Infection

SARS-CoV-2 mRNA Vaccine

Cellulose Synthase

Transfer RNA and Gag Protein

Biosites: Blood Plasma

Measles Virus Proteins

CytoSkeleton