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Arp2/3 complex 21 kDa subunit ARPC3 superfamily

SCOP classification
Root:   SCOP hierarchy in SUPERFAMILY [ 0] (11)
Class:   All alpha proteins [ 46456] (284)
Fold:   Arp2/3 complex 21 kDa subunit ARPC3 [ 69059]
Superfamily:   Arp2/3 complex 21 kDa subunit ARPC3 [ 69060]
Families:   Arp2/3 complex 21 kDa subunit ARPC3 [ 69061]


Superfamily statistics
Genomes (451) Uniprot 2018_03 genome PDB chains (SCOP 1.75)
Domains 608 1,594 1
Proteins 605 1,579 1


Functional annotation
General category Regulation
Detailed category Other regulatory function

Document:
Function annotation of SCOP domain superfamilies

InterPro annotation
Cross references IPR007204 SSF69060 Protein matches
Abstract

The Arp2/3 complex is a seven-protein assembly that is critical for actin nucleation and branching in cells. Arp2/3 nucleates new actin filaments while bound to existing filaments, thus creating a branched network [PubMed15040784]. The complex consists of Arp2, Arp3, p41, p34, p21, p20 and p16. Subunits p34 and p20 constitute the core of the structure, with the remaining subunits located peripherally [PubMed11741539]. This entry describes the p21 subunit. Proteins such as WASp and Scar1 may mediate receptor signalling through interactions with p21-Arc, resulting in the activation of Arc2/3 complex activity [PubMed11162547].


InterPro database


PDBeMotif information about ligands, sequence and structure motifs
Cross references PDB entries
Ligand binding statistics
Nucleic-acid binding statistics
Occurrence of secondary structure elements
Occurrence of small 3D structural motifs

PDBeMotif resource

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Internal database links

Browse genome assignments for this superfamily. The SUPERFAMILY hidden Markov model library has been used to carry out SCOP domain assignments to all genomes at the superfamily level.


Alignments of sequences to 1 models in this superfamily are available by clicking on the 'Alignments' icon above. PDB sequences less than 40% identical are shown by default, but any other sequence(s) may be aligned. Select PDB sequences, genome sequences, or paste in or upload your own sequences.


Browse and view proteins in genomes which have different domain combinations including a Arp2/3 complex 21 kDa subunit ARPC3 domain.


Examine the distribution of domain superfamilies, or families, across the major taxonomic kingdoms or genomes within a kingdom. This gives an immediate impression of how superfamilies, or families, are restricted to certain kingdoms of life.


Explore domain occurrence network where nodes represent genomes and edges are domain architectures (shared between genomes) containing the superfamily of interest.

There are 1 hidden Markov models representing the Arp2/3 complex 21 kDa subunit ARPC3 superfamily. Information on how the models are built, and plots showing hydrophobicity, match emmission probabilities and insertion/deletion probabilities can be inspected.


Jump to [ Top of page · SCOP classification · InterPro annotation · PDBeMotif links · Functional annotation · Internal database links ]