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.

Induced Lac Repressor

Hemoglobin

Myohemerythrin

Trypsin

Myoglobin Fold

Immunoglobulin G (IgG)

Crambin

Lysozyme (512)

TATA-Binding Protein (TBP)

Deoxyribonucleic Acid (DNA)

Hemoglobin S

Cytochrome c

DPG-Hemoglobin Complex

Hemoglobin (1000)

Deoxyhemoglobin

Lysozyme (488)

Ribonuclease S

Myoglobin

Carboxypeptidase A

Oxyhemoglobin

B-DNA

Intermolecular Contacts in Hemoglobin S

Transfer Ribonucleic Acid (tRNA)

Lac Repressor

Cytochrome c (unbound)

Tomato Bushy Stunt Virus (TBSV)

Z-DNA

Collagen

Aspartate Transcarbamoylase (ATCase)

DNA

A-DNA

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

Kinetochore

Influenza Vaccine

Vascular Endothelial Growth Factor (VegF) Signaling

Insulin Release

Casein Micelle and Fat Globule in Milk

Myoglobin in a Whale Muscle Cell

Biosites: Nucleus

Myelin

Mycoplasma mycoides

Lipid Droplets

Last Universal Common Ancestor

Coronavirus

Biosites: Blood Plasma

Red Blood Cell Cytoskeleton

Measles Virus Proteins

Transfer RNA and Gag Protein

RecA and DNA

Influenza Virus

Biosites: Cytoplasm

Autophagy

Phage-based COVID-19 Vaccine

SARS-CoV-2 and Neutralizing Antibodies

Respiratory Droplet

Biosites: Basement Membrane

JCVI-syn3A Minimal Cell

Biosites: Red Blood Cell

Collagen and Extracellular Matrix

Abiogenesis

Ebola Virus

Cellulose Synthase

Poliovirus Neutralization

Model of a Mycoplasma Cell

Immunological Synapse

Insulin Action

Escherichia coli

Zika Virus

CytoSkeleton

HIV Vaccine

Coronavirus Life Cycle

Biosites: Muscle

Chloroplast

SARS-CoV-2 mRNA Vaccine

Blood

SARS-CoV-2 Fusion

Bacteriophage T4 Infection

Escherichia coli Bacterium

Caulobacter Polar Microdomain

HIV-Infected Cell

Excitatory and Inhibitory Synapses

HIV in Blood Plasma