Molecule of the Month
November 2026

Artificial Metalloenzymes

Engineering enzymes to catalyze reactions never seen in nature

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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.

TATA-Binding Protein (TBP)

Lac Repressor

Lysozyme (488)

Lysozyme (512)

Z-DNA

Deoxyhemoglobin

Hemoglobin S

B-DNA

Collagen

Myoglobin

Myoglobin Fold

Oxyhemoglobin

Aspartate Transcarbamoylase (ATCase)

Crambin

Carboxypeptidase A

DPG-Hemoglobin Complex

Immunoglobulin G (IgG)

Trypsin

Cytochrome c

Hemoglobin

Tomato Bushy Stunt Virus (TBSV)

Deoxyribonucleic Acid (DNA)

Ribonuclease S

Cytochrome c (unbound)

A-DNA

Induced Lac Repressor

Hemoglobin (1000)

Intermolecular Contacts in Hemoglobin S

DNA

Transfer Ribonucleic Acid (tRNA)

Myohemerythrin

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

SARS-CoV-2 Fusion

Excitatory and Inhibitory Synapses

Respiratory Droplet

Biosites: Nucleus

Insulin Action

Chloroplast

Ebola Virus

Model of a Mycoplasma Cell

Mycoplasma mycoides

JCVI-syn3A Minimal Cell

Collagen and Extracellular Matrix

Kinetochore

Transfer RNA and Gag Protein

Biosites: Blood Plasma

Influenza Vaccine

Measles Virus Proteins

Biosites: Cytoplasm

HIV in Blood Plasma

SARS-CoV-2 and Neutralizing Antibodies

Lipid Droplets

Insulin Release

Blood

Poliovirus Neutralization

Influenza Virus

Red Blood Cell Cytoskeleton

Biosites: Muscle

HIV-Infected Cell

Biosites: Basement Membrane

Vascular Endothelial Growth Factor (VegF) Signaling

Myoglobin in a Whale Muscle Cell

Cellulose Synthase

HIV Vaccine

Bacteriophage T4 Infection

Caulobacter Polar Microdomain

RecA and DNA

Abiogenesis

Coronavirus Life Cycle

Zika Virus

Last Universal Common Ancestor

SARS-CoV-2 mRNA Vaccine

Casein Micelle and Fat Globule in Milk

Phage-based COVID-19 Vaccine

Immunological Synapse

Biosites: Red Blood Cell

Escherichia coli

CytoSkeleton

Myelin

Escherichia coli Bacterium

Autophagy

Coronavirus