Molecule of the Month
February 2025

H5 Hemagglutinin

Sugar-binding protein on the surface of the H5N1 avian influenza virus

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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.

Immunoglobulin G (IgG)

Oxyhemoglobin

B-DNA

Myoglobin Fold

Z-DNA

Tomato Bushy Stunt Virus (TBSV)

Lysozyme (488)

Ribonuclease S

A-DNA

Lysozyme (512)

Hemoglobin S

Aspartate Transcarbamoylase (ATCase)

Trypsin

Carboxypeptidase A

Collagen

Myohemerythrin

Crambin

Induced Lac Repressor

Transfer Ribonucleic Acid (tRNA)

DPG-Hemoglobin Complex

Cytochrome c (unbound)

Hemoglobin (1000)

TATA-Binding Protein (TBP)

Lac Repressor

Cytochrome c

DNA

Intermolecular Contacts in Hemoglobin S

Hemoglobin

Myoglobin

Deoxyribonucleic Acid (DNA)

Deoxyhemoglobin

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: Cytoplasm

Transfer RNA and Gag Protein

HIV-Infected Cell

Myelin

Phage-based COVID-19 Vaccine

Bacteriophage T4 Infection

Cellulose Synthase

Biosites: Basement Membrane

Excitatory and Inhibitory Synapses

Caulobacter Polar Microdomain

Immunological Synapse

Biosites: Red Blood Cell

HIV in Blood Plasma

Ebola Virus

RecA and DNA

Lipid Droplets

JCVI-syn3A Minimal Cell

Model of a Mycoplasma Cell

Poliovirus Neutralization

Casein Micelle and Fat Globule in Milk

Escherichia coli

Kinetochore

Zika Virus

SARS-CoV-2 Fusion

Vascular Endothelial Growth Factor (VegF) Signaling

CytoSkeleton

SARS-CoV-2 mRNA Vaccine

Chloroplast

Mycoplasma mycoides

Abiogenesis

Insulin Release

Respiratory Droplet

Biosites: Blood Plasma

HIV Vaccine

Blood

SARS-CoV-2 and Neutralizing Antibodies

Collagen and Extracellular Matrix

Autophagy

Myoglobin in a Whale Muscle Cell

Biosites: Muscle

Influenza Virus

Escherichia coli Bacterium

Last Universal Common Ancestor

Biosites: Nucleus

Coronavirus Life Cycle

Coronavirus

Red Blood Cell Cytoskeleton

Influenza Vaccine

Insulin Action

Measles Virus Proteins