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.

Deoxyribonucleic Acid (DNA)

A-DNA

Oxyhemoglobin

Hemoglobin (1000)

DPG-Hemoglobin Complex

DNA

Myohemerythrin

Trypsin

Transfer Ribonucleic Acid (tRNA)

Cytochrome c

B-DNA

Cytochrome c (unbound)

Crambin

Carboxypeptidase A

Hemoglobin S

Tomato Bushy Stunt Virus (TBSV)

Induced Lac Repressor

Ribonuclease S

Lysozyme (512)

Lac Repressor

Deoxyhemoglobin

Hemoglobin

Myoglobin

TATA-Binding Protein (TBP)

Z-DNA

Aspartate Transcarbamoylase (ATCase)

Lysozyme (488)

Immunoglobulin G (IgG)

Collagen

Intermolecular Contacts in Hemoglobin S

Myoglobin Fold

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

Collagen and Extracellular Matrix

Autophagy

Abiogenesis

Biosites: Nucleus

Immunological Synapse

Insulin Action

Vascular Endothelial Growth Factor (VegF) Signaling

Influenza Vaccine

Casein Micelle and Fat Globule in Milk

Bacteriophage T4 Infection

Escherichia coli

HIV in Blood Plasma

HIV Vaccine

SARS-CoV-2 mRNA Vaccine

Coronavirus Life Cycle

Biosites: Blood Plasma

Phage-based COVID-19 Vaccine

Lipid Droplets

Biosites: Muscle

Myoglobin in a Whale Muscle Cell

Transfer RNA and Gag Protein

Red Blood Cell Cytoskeleton

RecA and DNA

JCVI-syn3A Minimal Cell

Escherichia coli Bacterium

Measles Virus Proteins

Ebola Virus

Caulobacter Polar Microdomain

SARS-CoV-2 Fusion

SARS-CoV-2 and Neutralizing Antibodies

Insulin Release

Chloroplast

CytoSkeleton

Coronavirus

Kinetochore

Biosites: Red Blood Cell

Zika Virus

Biosites: Basement Membrane

Mycoplasma mycoides

Blood

Last Universal Common Ancestor

HIV-Infected Cell

Biosites: Cytoplasm

Myelin

Model of a Mycoplasma Cell

Respiratory Droplet

Cellulose Synthase

Influenza Virus

Poliovirus Neutralization

Excitatory and Inhibitory Synapses