SUPERFAMILY 1.75 HMM library and genome assignments server

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FliG superfamily

SCOP classification
Root:   SCOP hierarchy in SUPERFAMILY [ 0] (11)
Class:   All alpha proteins [ 46456] (284)
Fold:   alpha-alpha superhelix [ 48370] (24)
Superfamily:   FliG [ 48029]
Families:   FliG [ 48030]


Superfamily statistics
Genomes (1,346) Uniprot 2018_03 genome PDB chains (SCOP 1.75)
Domains 2,981 22,488 2
Proteins 1,589 11,995 2


Functional annotation
General category Processes_IC
Detailed category Cell motility

Document:
Function annotation of SCOP domain superfamilies

InterPro annotation
Cross references IPR011002 SSF48029 Protein matches
Abstract

This entry represents an alpha-alpha superhelical domain found in the flagellar motor switch protein FliG. The flagellar motor switch regulates the direction of flagellar rotation and swimming behaviour in certain bacteria [PubMed8224881]. The switch is a complex apparatus that responds to signals transduced by the chemotaxis sensory signalling system during chemotactic behaviour. CheY, the chemotaxis response regulator, is believed to act directly on the switch to induce tumbles in the swimming pattern [PubMed12736245].

The switch complex comprises at least three proteins - FliG, FliM and FliN. It has been shown that FliG interacts with FliM, FliM interacts with itself, and FliM interacts with FliN. Several residues within the middle third of FliG appear to be strongly involved in the FliG-FliM interaction, with residues near the N- or C-termini being less important. Such clustering suggests that FliG-FliM interaction plays a central role in switching.


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

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

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 3 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 FliG 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 3 hidden Markov models representing the FliG 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 ]