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Molecule of the Month

February 2026

Histones Across the Tree of Life

Uncovering the evolutionary diversity of histones

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Training Resources Spotlight

Guide to Understanding PDB Data

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

Training Courses

Recorded lectures and related resources

Featured:

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

Education Corner PDB & Data Archiving Curriculum

News and Events

How Structural Biologists and the PDB Drive Innovation

» 02/04/2026

February 4 is World Cancer Day

» 02/01/2026

» 01/28/2026

Impact of PDB Structures on Anti-Cancer Drug Approvals

» 01/27/2026

» 01/26/2026

January is Cervical Cancer Awareness Month

» 01/20/2026

Winter Newsletter Published

» 01/15/2026

Top Molecules of the Month in 2025

» 01/12/2026

» 01/11/2026

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Learn

PDB data help explain fundamental biology, biomedicine, bioengineering/biotechnology, and energy sciences

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Use PDB-101 resources to learn how researchers are using biology in industry

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The RCSB PDB Curricula provide authentic, hands-on teaching materials, individual and group activities and assessment suggestions

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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

Collagen

Myoglobin Fold

B-DNA

Myohemerythrin

Oxyhemoglobin

Hemoglobin S

Cytochrome c (unbound)

Lysozyme (488)

Deoxyhemoglobin

Myoglobin

Cytochrome c

Transfer Ribonucleic Acid (tRNA)

Intermolecular Contacts in Hemoglobin S

Hemoglobin

Tomato Bushy Stunt Virus (TBSV)

Deoxyribonucleic Acid (DNA)

Carboxypeptidase A

Hemoglobin (1000)

TATA-Binding Protein (TBP)

Induced Lac Repressor

A-DNA

Z-DNA

Immunoglobulin G (IgG)

DNA

Aspartate Transcarbamoylase (ATCase)

DPG-Hemoglobin Complex

Trypsin

Crambin

Ribonuclease S

Lysozyme (512)

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