Welcome

RCSB Protein Data Bank (RCSB PDB) enables breakthroughs in science and education by providing access and tools for exploration, visualization, and analysis of:

Experimentally-determined 3D structures from the Protein Data Bank (PDB) archive

Computed Structure Models (CSM) from AlphaFold DB and ModelArchive

These data can be explored in context of external annotations providing a structural view of biology.


May Molecule of the Month

RCSB PDB Molecule of the Month
Cellulases and Bioenergy

Features & Highlights

Explore PDB Data Distributions

Explore PDB Data Distributions

Many statistics are available, including PDB holdings by experimental method and molecular type, along with numbers for structures with experimental and small molecule data

Toggle to "Opt-in" to Access Computed Structure Models Alongside PDB Data

Toggle to "Opt-in" to Access Computed Structure Models Alongside PDB Data

Move the slider to use RCSB PDB tools with >1 million CSMs from AlphaFold and ModelArchive

Guide to Understanding PDB Data: Intro to APIs

Guide to Understanding PDB Data: Intro to APIs

PDB-101's Guide helps non-experts navigate through the PDB. A new chapter introduces the APIs that query and deliver PDB data at RCSB.org.

Search for Structures or Feature Help, News, and PDB-101

Search for Structures or Feature Help, News, and PDB-101

Use the pulldown menu to target queries of 3D structures (PDB structures and Computed Structure Models) or Documentation (User Guides, News Announcements, and PDB-101 Features)

Easily Build Advanced Searches

Easily Build Advanced Searches

Type to quickly find the attribute options you want to search

ls-lR index file to be removed July 12, 2023

ls-lR index file to be removed July 12, 2023

Users are encouraged to transition to new inventory files for PDB entries, chemical reference data, and experimental data

Perform Improved Pairwise Structure Alignments

Perform Improved Pairwise Structure Alignments

Simultaneously analyze and visualize 3D structure and 1D sequence alignments

Sequence Clustering Update

Sequence Clustering Update

Sequence clustering at RCSB.org has been relaxed from 90% to 80%

Search for Structures By Date

Search for Structures By Date

Use Advanced Search to easily find structures based on the date of release or deposition

Find Structurally Similar Chains and Assemblies

Find Structurally Similar Chains and Assemblies

Use Advanced Search to find structures similar to a polymer chain or assembly of interest


See new feature archive

Molecule of the Month

Cellulases and Bioenergy

Cellulases and Bioenergy

Powerful fungal enzymes break down cellulose during industrial production of ethanol from plant material.

Read More

Quarterly News (see archive)

Spring 2023 newslettery

Issue 97 - April 2023

This issue highlights Spring Crash Courses; a milestone 200,000 PDB structures; searching Computed Structure Models; and more. April 2023 Issue

Annual Reports

2022 Annual Report

Download the 2022 Annual Report (PDF) for an overview of recent RCSB PDB activities, including enabled access to ~1 million Computed Structure Models (CSMs) from AlphaFoldDB and RoseTTAFold.

Annual Report Archive