Molecule of the Month
March 2025

Enoyl-CoA Carboxylases/Reductases

Enzymes that can quickly and efficiently fix carbon

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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.

Z-DNA

Ribonuclease S

Intermolecular Contacts in Hemoglobin S

Lac Repressor

Trypsin

A-DNA

Immunoglobulin G (IgG)

Aspartate Transcarbamoylase (ATCase)

Hemoglobin S

Lysozyme (512)

Tomato Bushy Stunt Virus (TBSV)

Carboxypeptidase A

Transfer Ribonucleic Acid (tRNA)

Hemoglobin (1000)

Crambin

Cytochrome c (unbound)

Hemoglobin

Deoxyhemoglobin

Myoglobin

Deoxyribonucleic Acid (DNA)

Collagen

DPG-Hemoglobin Complex

Myohemerythrin

Cytochrome c

DNA

Myoglobin Fold

Induced Lac Repressor

B-DNA

Lysozyme (488)

Oxyhemoglobin

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

Blood

Biosites: Muscle

HIV in Blood Plasma

SARS-CoV-2 Fusion

Chloroplast

Biosites: Red Blood Cell

HIV-Infected Cell

Coronavirus Life Cycle

Biosites: Basement Membrane

Coronavirus

HIV Vaccine

Casein Micelle and Fat Globule in Milk

Biosites: Cytoplasm

Insulin Action

Lipid Droplets

Abiogenesis

Transfer RNA and Gag Protein

SARS-CoV-2 mRNA Vaccine

Escherichia coli Bacterium

JCVI-syn3A Minimal Cell

Red Blood Cell Cytoskeleton

Influenza Vaccine

Cellulose Synthase

Model of a Mycoplasma Cell

Zika Virus

CytoSkeleton

Excitatory and Inhibitory Synapses

RecA and DNA

Bacteriophage T4 Infection

Biosites: Blood Plasma

Ebola Virus

Collagen and Extracellular Matrix

Caulobacter Polar Microdomain

Last Universal Common Ancestor

Vascular Endothelial Growth Factor (VegF) Signaling

Measles Virus Proteins

Poliovirus Neutralization

SARS-CoV-2 and Neutralizing Antibodies

Respiratory Droplet

Phage-based COVID-19 Vaccine

Autophagy

Kinetochore

Myoglobin in a Whale Muscle Cell

Insulin Release

Mycoplasma mycoides

Myelin

Influenza Virus

Biosites: Nucleus

Immunological Synapse

Escherichia coli