Molecule of the Month
May 2025

TOC-TIC Translocon

The large TOC-TIC supercomplex transports proteins into the chloroplast

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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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Myoglobin

Hemoglobin (1000)

Hemoglobin S

Trypsin

Intermolecular Contacts in Hemoglobin S

Lysozyme (512)

Induced Lac Repressor

DNA

Myoglobin Fold

Lysozyme (488)

Tomato Bushy Stunt Virus (TBSV)

Hemoglobin

TATA-Binding Protein (TBP)

B-DNA

Z-DNA

Crambin

DPG-Hemoglobin Complex

Myohemerythrin

Ribonuclease S

Collagen

Transfer Ribonucleic Acid (tRNA)

Deoxyribonucleic Acid (DNA)

Carboxypeptidase A

Aspartate Transcarbamoylase (ATCase)

Immunoglobulin G (IgG)

Deoxyhemoglobin

Lac Repressor

Oxyhemoglobin

Cytochrome c (unbound)

A-DNA

Cytochrome c

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

Last Universal Common Ancestor

Chloroplast

Measles Virus Proteins

Coronavirus

JCVI-syn3A Minimal Cell

Biosites: Red Blood Cell

Mycoplasma mycoides

SARS-CoV-2 and Neutralizing Antibodies

Casein Micelle and Fat Globule in Milk

SARS-CoV-2 Fusion

Blood

HIV-Infected Cell

Ebola Virus

Respiratory Droplet

Caulobacter Polar Microdomain

Transfer RNA and Gag Protein

Myoglobin in a Whale Muscle Cell

Phage-based COVID-19 Vaccine

RecA and DNA

Lipid Droplets

Cellulose Synthase

Collagen and Extracellular Matrix

Immunological Synapse

Insulin Release

Autophagy

Escherichia coli

Insulin Action

Influenza Vaccine

Poliovirus Neutralization

Escherichia coli Bacterium

SARS-CoV-2 mRNA Vaccine

Model of a Mycoplasma Cell

Influenza Virus

Abiogenesis

Biosites: Nucleus

HIV in Blood Plasma

Vascular Endothelial Growth Factor (VegF) Signaling

Kinetochore

Red Blood Cell Cytoskeleton

CytoSkeleton

Biosites: Blood Plasma

HIV Vaccine

Bacteriophage T4 Infection

Myelin

Zika Virus

Biosites: Cytoplasm

Coronavirus Life Cycle

Excitatory and Inhibitory Synapses

Biosites: Muscle

Biosites: Basement Membrane