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.

Hemoglobin (1000)

Z-DNA

Intermolecular Contacts in Hemoglobin S

A-DNA

Myohemerythrin

Cytochrome c

Aspartate Transcarbamoylase (ATCase)

B-DNA

Hemoglobin

Myoglobin

Tomato Bushy Stunt Virus (TBSV)

Lysozyme (512)

Collagen

Hemoglobin S

Myoglobin Fold

Immunoglobulin G (IgG)

Crambin

Lac Repressor

DNA

Transfer Ribonucleic Acid (tRNA)

Trypsin

Deoxyhemoglobin

TATA-Binding Protein (TBP)

DPG-Hemoglobin Complex

Lysozyme (488)

Cytochrome c (unbound)

Induced Lac Repressor

Carboxypeptidase A

Oxyhemoglobin

Ribonuclease S

Deoxyribonucleic Acid (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

Biosites: Blood Plasma

Casein Micelle and Fat Globule in Milk

Insulin Release

Influenza Vaccine

Red Blood Cell Cytoskeleton

Insulin Action

Influenza Virus

HIV in Blood Plasma

Cellulose Synthase

Vascular Endothelial Growth Factor (VegF) Signaling

Biosites: Red Blood Cell

Biosites: Cytoplasm

Respiratory Droplet

Last Universal Common Ancestor

Mycoplasma mycoides

SARS-CoV-2 mRNA Vaccine

Kinetochore

Escherichia coli

HIV Vaccine

Escherichia coli Bacterium

Chloroplast

HIV-Infected Cell

Autophagy

Zika Virus

Immunological Synapse

Biosites: Basement Membrane

Transfer RNA and Gag Protein

Abiogenesis

Collagen and Extracellular Matrix

Caulobacter Polar Microdomain

Myelin

Coronavirus Life Cycle

Biosites: Muscle

CytoSkeleton

Blood

Bacteriophage T4 Infection

Myoglobin in a Whale Muscle Cell

SARS-CoV-2 and Neutralizing Antibodies

Coronavirus

SARS-CoV-2 Fusion

Ebola Virus

RecA and DNA

Lipid Droplets

JCVI-syn3A Minimal Cell

Phage-based COVID-19 Vaccine

Model of a Mycoplasma Cell

Poliovirus Neutralization

Biosites: Nucleus

Excitatory and Inhibitory Synapses

Measles Virus Proteins