The name of this superfamily has been modified since the most recent official CATH+ release (v4_3_0). At the point of the last release, this superfamily was named:

Signal recognition particle SRP54, nucleotide-binding domain

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.

Superfamily: SRP54, nucleotide-binding domain

The signal recognition particle (SRP) is a ribonucleoprotein that mediates co-translational targeting of nascent proteins to the membrane. This superfamily describes the N domain, a four-helical bundle, that has a key function in regulating the nucleotide-binding interactions of the G domain.

[J Mol Biol. 2002 Jul 19;320(4):783-99]

GO Diversity

Unique GO annotations
49 Unique GO terms

EC Diversity

Unique EC annotations
0 Unique EC terms

Species Diversity

Unique species annotations
15531 Unique species

Sequence/Structure Diversity

Overview of the sequence / structure diversity of this superfamily compared to other superfamilies in CATH. Click on the chart to view the data in more detail.

Superfamily Summary

A general summary of information for this superfamily.
Domains: 83
Domain clusters (>95% seq id): 21
Domain clusters (>35% seq id): 15
Unique PDBs: 45
Structural Clusters (5A): 2
Structural Clusters (9A): 1
FunFam Clusters: 44
Unique EC:
Unique GO: 49
Unique Species: 15531