Molecule of the Month
January 2025

Assembly Line Polyketide Synthases

Large multienzyme complexes that synthesize diverse small molecules in a stepwise manner.

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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.

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Carboxypeptidase A

Lysozyme (512)

Z-DNA

Intermolecular Contacts in Hemoglobin S

Lac Repressor

Trypsin

Ribonuclease S

Transfer Ribonucleic Acid (tRNA)

DNA

Hemoglobin S

Lysozyme (488)

Tomato Bushy Stunt Virus (TBSV)

Hemoglobin

Myohemerythrin

DPG-Hemoglobin Complex

Crambin

Deoxyhemoglobin

A-DNA

Oxyhemoglobin

Myoglobin Fold

Collagen

Cytochrome c

Hemoglobin (1000)

Immunoglobulin G (IgG)

Cytochrome c (unbound)

Aspartate Transcarbamoylase (ATCase)

Deoxyribonucleic Acid (DNA)

Myoglobin

B-DNA

Induced Lac Repressor

TATA-Binding Protein (TBP)

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

HIV in Blood Plasma

JCVI-syn3A Minimal Cell

Measles Virus Proteins

Excitatory and Inhibitory Synapses

Vascular Endothelial Growth Factor (VegF) Signaling

Biosites: Blood Plasma

Blood

Biosites: Cytoplasm

Casein Micelle and Fat Globule in Milk

Influenza Vaccine

Autophagy

Model of a Mycoplasma Cell

Caulobacter Polar Microdomain

Bacteriophage T4 Infection

Biosites: Basement Membrane

Biosites: Nucleus

Lipid Droplets

SARS-CoV-2 mRNA Vaccine

Myelin

Mycoplasma mycoides

Phage-based COVID-19 Vaccine

Myoglobin in a Whale Muscle Cell

Transfer RNA and Gag Protein

Chloroplast

Coronavirus Life Cycle

CytoSkeleton

SARS-CoV-2 and Neutralizing Antibodies

Poliovirus Neutralization

Cellulose Synthase

Biosites: Muscle

Insulin Action

Coronavirus

HIV-Infected Cell

Immunological Synapse

Insulin Release

Influenza Virus

Red Blood Cell Cytoskeleton

HIV Vaccine

SARS-CoV-2 Fusion

Escherichia coli Bacterium

Biosites: Red Blood Cell

Ebola Virus

Abiogenesis

Respiratory Droplet

Kinetochore

RecA and DNA

Escherichia coli

Collagen and Extracellular Matrix

Zika Virus

Last Universal Common Ancestor