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.

Myoglobin

Crambin

Lysozyme (488)

Z-DNA

A-DNA

DNA

Lysozyme (512)

DPG-Hemoglobin Complex

Collagen

Intermolecular Contacts in Hemoglobin S

TATA-Binding Protein (TBP)

Deoxyhemoglobin

Immunoglobulin G (IgG)

Hemoglobin (1000)

Myohemerythrin

Oxyhemoglobin

Cytochrome c (unbound)

Transfer Ribonucleic Acid (tRNA)

Tomato Bushy Stunt Virus (TBSV)

Ribonuclease S

B-DNA

Myoglobin Fold

Carboxypeptidase A

Lac Repressor

Cytochrome c

Induced Lac Repressor

Trypsin

Hemoglobin

Deoxyribonucleic Acid (DNA)

Hemoglobin S

Aspartate Transcarbamoylase (ATCase)

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 Virus

Mycoplasma mycoides

Biosites: Blood Plasma

Collagen and Extracellular Matrix

Zika Virus

CytoSkeleton

Bacteriophage T4 Infection

Immunological Synapse

Biosites: Basement Membrane

Phage-based COVID-19 Vaccine

Chloroplast

Model of a Mycoplasma Cell

HIV-Infected Cell

Caulobacter Polar Microdomain

Lipid Droplets

Myoglobin in a Whale Muscle Cell

Red Blood Cell Cytoskeleton

Casein Micelle and Fat Globule in Milk

Escherichia coli

JCVI-syn3A Minimal Cell

Insulin Action

Myelin

Biosites: Nucleus

SARS-CoV-2 and Neutralizing Antibodies

Coronavirus

HIV in Blood Plasma

SARS-CoV-2 mRNA Vaccine

Autophagy

HIV Vaccine

SARS-CoV-2 Fusion

Abiogenesis

Respiratory Droplet

Influenza Vaccine

RecA and DNA

Last Universal Common Ancestor

Escherichia coli Bacterium

Kinetochore

Poliovirus Neutralization

Blood

Biosites: Muscle

Measles Virus Proteins

Transfer RNA and Gag Protein

Biosites: Red Blood Cell

Biosites: Cytoplasm

Coronavirus Life Cycle

Vascular Endothelial Growth Factor (VegF) Signaling

Insulin Release

Cellulose Synthase

Excitatory and Inhibitory Synapses

Ebola Virus