SCOP: Structural Classification of Proteins and ASTRAL

Structural Classification of Proteins and ASTRAL release 1.75B (January 2013)

SCOP+Astral 1.75B help

Because SCOP 1.75B assignments are based on the classification in SCOP 1.75, most documentation for SCOP 1.75, including that in the older release notes, still applies.
In addition, the documentation for SCOP 1.75A regarding automated assignments, linking to the website, and ASTRAL sequences continue to apply to this release.
New features are described below:

Stable and Periodic Release Plans

Like all previous SCOP releases, 1.75B is "stable," meaning the data will not change until the next release (although we will continue to make improvements or bug fixes to the interface).

Our current infrastructure imports and classifies new PDB files on a weekly basis.

Starting with this release, we are also producing periodic updates that add newly released PDB entries the classification (approximately monthly). These periodic updates add new entries to the 1.75B release, without affecting older domains. Sequences for the newly added chains and domains will not be included in the ASTRAL subsets until the subsequent stable release.

In addition to making new domains and PDB entries visible through the web interface, the periodic updates also include updated versions of:

All SCOP parseable files (available under the Downloads tab)
The SCOP+Astral MySQL database (available under the Downloads tab)
The Astral RAF sequence maps and full sequence sets (available under the ASTRAL subsets tab)

Note that these periodic updates will not replace stable releases or the files we make available with each stable version. Because stable releases of SCOP (and the ASTRAL subsets) are commonly used to benchmark algorithms, we plan to continue producing stable releases as well as periodic updates to those releases. The stable releases will include any changes (such as merging or splitting clades, moving clades, or changes and corrections to domain boundaries) that curators make to the classification.