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)

Trypsin

Intermolecular Contacts in Hemoglobin S

Cytochrome c (unbound)

Aspartate Transcarbamoylase (ATCase)

Crambin

A-DNA

Z-DNA

Lac Repressor

Ribonuclease S

DNA

Myoglobin

B-DNA

Carboxypeptidase A

Hemoglobin (1000)

Hemoglobin

DPG-Hemoglobin Complex

Myoglobin Fold

Immunoglobulin G (IgG)

Collagen

Induced Lac Repressor

Oxyhemoglobin

Deoxyribonucleic Acid (DNA)

Myohemerythrin

Tomato Bushy Stunt Virus (TBSV)

Transfer Ribonucleic Acid (tRNA)

Cytochrome c

Deoxyhemoglobin

Lysozyme (512)

Lysozyme (488)

Hemoglobin S

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

Influenza Vaccine

Casein Micelle and Fat Globule in Milk

Biosites: Muscle

HIV-Infected Cell

Kinetochore

Coronavirus Life Cycle

Last Universal Common Ancestor

Biosites: Cytoplasm

Zika Virus

Influenza Virus

Collagen and Extracellular Matrix

Myoglobin in a Whale Muscle Cell

Biosites: Blood Plasma

Phage-based COVID-19 Vaccine

Transfer RNA and Gag Protein

Insulin Release

Chloroplast

SARS-CoV-2 Fusion

Escherichia coli

Immunological Synapse

SARS-CoV-2 mRNA Vaccine

HIV in Blood Plasma

Biosites: Basement Membrane

Poliovirus Neutralization

Mycoplasma mycoides

Cellulose Synthase

SARS-CoV-2 and Neutralizing Antibodies

Biosites: Nucleus

Model of a Mycoplasma Cell

Bacteriophage T4 Infection

Red Blood Cell Cytoskeleton

Coronavirus

Escherichia coli Bacterium

CytoSkeleton

Lipid Droplets

Insulin Action

Measles Virus Proteins

RecA and DNA

Respiratory Droplet

JCVI-syn3A Minimal Cell

Blood

Excitatory and Inhibitory Synapses

Vascular Endothelial Growth Factor (VegF) Signaling

Ebola Virus

Biosites: Red Blood Cell

Caulobacter Polar Microdomain

HIV Vaccine

Abiogenesis

Autophagy

Myelin