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.

Lac Repressor

Myoglobin Fold

Ribonuclease S

Deoxyhemoglobin

Hemoglobin (1000)

Trypsin

Carboxypeptidase A

Lysozyme (512)

Crambin

Z-DNA

Oxyhemoglobin

A-DNA

Myoglobin

Hemoglobin S

Intermolecular Contacts in Hemoglobin S

Hemoglobin

Myohemerythrin

Deoxyribonucleic Acid (DNA)

DPG-Hemoglobin Complex

B-DNA

Cytochrome c

DNA

Transfer Ribonucleic Acid (tRNA)

Immunoglobulin G (IgG)

Cytochrome c (unbound)

Aspartate Transcarbamoylase (ATCase)

Induced Lac Repressor

Collagen

Tomato Bushy Stunt Virus (TBSV)

Lysozyme (488)

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

Last Universal Common Ancestor

Kinetochore

Caulobacter Polar Microdomain

Biosites: Nucleus

Respiratory Droplet

Escherichia coli Bacterium

Vascular Endothelial Growth Factor (VegF) Signaling

Excitatory and Inhibitory Synapses

Coronavirus

Escherichia coli

SARS-CoV-2 and Neutralizing Antibodies

HIV Vaccine

Biosites: Blood Plasma

Biosites: Basement Membrane

Biosites: Muscle

Red Blood Cell Cytoskeleton

Zika Virus

Mycoplasma mycoides

CytoSkeleton

SARS-CoV-2 mRNA Vaccine

Model of a Mycoplasma Cell

SARS-CoV-2 Fusion

Autophagy

JCVI-syn3A Minimal Cell

Transfer RNA and Gag Protein

Influenza Vaccine

Biosites: Cytoplasm

Phage-based COVID-19 Vaccine

Immunological Synapse

Casein Micelle and Fat Globule in Milk

Ebola Virus

Blood

HIV-Infected Cell

Insulin Action

Biosites: Red Blood Cell

Collagen and Extracellular Matrix

Insulin Release

Poliovirus Neutralization

Measles Virus Proteins

Myelin

Influenza Virus

Chloroplast

Bacteriophage T4 Infection

Myoglobin in a Whale Muscle Cell

RecA and DNA

Abiogenesis

Cellulose Synthase

Lipid Droplets

Coronavirus Life Cycle

HIV in Blood Plasma