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.

Transfer Ribonucleic Acid (tRNA)

Carboxypeptidase A

Induced Lac Repressor

Collagen

Immunoglobulin G (IgG)

Intermolecular Contacts in Hemoglobin S

Aspartate Transcarbamoylase (ATCase)

Lac Repressor

Trypsin

Deoxyribonucleic Acid (DNA)

DNA

Myoglobin Fold

Cytochrome c

Crambin

Oxyhemoglobin

Myohemerythrin

Z-DNA

Hemoglobin S

B-DNA

A-DNA

Deoxyhemoglobin

Lysozyme (488)

Myoglobin

DPG-Hemoglobin Complex

Ribonuclease S

Tomato Bushy Stunt Virus (TBSV)

TATA-Binding Protein (TBP)

Hemoglobin

Lysozyme (512)

Hemoglobin (1000)

Cytochrome c (unbound)

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

Chloroplast

Kinetochore

Immunological Synapse

JCVI-syn3A Minimal Cell

Insulin Release

Biosites: Basement Membrane

Respiratory Droplet

Influenza Vaccine

Biosites: Muscle

Phage-based COVID-19 Vaccine

Myelin

Poliovirus Neutralization

Bacteriophage T4 Infection

SARS-CoV-2 and Neutralizing Antibodies

HIV in Blood Plasma

Transfer RNA and Gag Protein

RecA and DNA

Abiogenesis

Red Blood Cell Cytoskeleton

Last Universal Common Ancestor

SARS-CoV-2 Fusion

Blood

HIV-Infected Cell

Lipid Droplets

Biosites: Nucleus

Caulobacter Polar Microdomain

Autophagy

Mycoplasma mycoides

Measles Virus Proteins

Escherichia coli

Escherichia coli Bacterium

CytoSkeleton

Cellulose Synthase

Zika Virus

Vascular Endothelial Growth Factor (VegF) Signaling

Excitatory and Inhibitory Synapses

Biosites: Blood Plasma

Coronavirus Life Cycle

Biosites: Cytoplasm

Myoglobin in a Whale Muscle Cell

Model of a Mycoplasma Cell

Influenza Virus

Biosites: Red Blood Cell

SARS-CoV-2 mRNA Vaccine

Insulin Action

HIV Vaccine

Ebola Virus

Collagen and Extracellular Matrix

Coronavirus

Casein Micelle and Fat Globule in Milk