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Molecule of the Month

June 2026

Therapeutic Phage

Using the natural predators of bacteria to fight antibiotic-resistant infections

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Training Resources Spotlight

Guide to Understanding PDB Data

Guided reference for methods of obtaining, exploration, and interpretation of PDB entries

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Featured:

Exploring the Workhorses of Biotechnology: Using RCSB.org to analyze plastic-degrading enzymes

Education Corner PDB & Data Archiving Curriculum

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Molecular Origami: Build 3D Paper Models of Protein Domains

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Video: Immunology and Cancer

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Education Corner: Seeing the Invisible

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Contact Customer Services with Questions and Feedback

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Guide to Understanding PDB Data: Primary Sequences

» 04/30/2026

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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.

Lac Repressor

TATA-Binding Protein (TBP)

Deoxyribonucleic Acid (DNA)

Myoglobin

Hemoglobin

B-DNA

Myoglobin Fold

DPG-Hemoglobin Complex

DNA

Ribonuclease S

Myohemerythrin

Carboxypeptidase A

Oxyhemoglobin

Crambin

Deoxyhemoglobin

Immunoglobulin G (IgG)

Induced Lac Repressor

Aspartate Transcarbamoylase (ATCase)

Intermolecular Contacts in Hemoglobin S

Hemoglobin (1000)

Z-DNA

Hemoglobin S

Tomato Bushy Stunt Virus (TBSV)

Lysozyme (512)

Transfer Ribonucleic Acid (tRNA)

Collagen

Lysozyme (488)

Trypsin

Cytochrome c

A-DNA

Cytochrome c (unbound)

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