The name of this superfamily has been modified since the most recent official CATH+ release (v4_2_0). At the point of the last release, this superfamily was: waiting to be named.

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: Signal recognition particle 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. The SRP54 component is a GTP-binding protein that interacts with the signal sequence when it emerges from the ribosome.


GO Diversity

Unique GO annotations
47 Unique GO terms

EC Diversity

Unique EC annotations
17 Unique EC terms

Species Diversity

Unique species annotations
13145 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): 2
FunFam Clusters: 29
Unique EC: 17
Unique GO: 47
Unique Species: 13145