SUPERFAMILY 1.73 HMM library and genome assignments server


Aspartate/glutamate racemase superfamily

SCOP classification
Root:   SCOP hierarchy in SUPERFAMILY [ 0] (11)
Class:   Alpha and beta proteins (a/b) [ 51349] (141)
  Mainly parallel beta sheets (beta-alpha-beta units)
Fold:   ATC-like [ 53670] (2)
  consists of two similar domains related by pseudo dyad; duplication
core: 3 layers, a/b/a, parallel beta-sheet of 4 strands, order 2134
Superfamily:   Aspartate/glutamate racemase [ 53681]
Families:   Aspartate/glutamate racemase [ 53682] (2)
  C-terminal extension is added to the N-terminal domain


Superfamily statistics
Genomes (846) UniProt 15.0 PDB chains (SCOP 1.73)
Domains 2,574 3,881 5
Proteins 1,303 1,958 3


Functional annotation
General category Metabolism
Detailed category Amino acids metabolism and transport

Function annotation of SCOP domain superfamilies
InterPro annotation
Cross references IPR001920 SSF53681 Protein matches
Abstract

Aspartate racemase and glutamate racemase are two evolutionary related bacterial enzymes that do not seem to require a cofactor for their activity [PubMed8385993]. Glutamate racemase, which interconverts L-glutamate into D-glutamate, is required for the biosynthesis of peptidoglycan and some peptide-based antibiotics such as gramicidin S. In addition to characterised aspartate and glutamate racemases, this family also includes a hypothetical protein from Erwinia carotovora and one from Escherichia coli (ygeA).

Two conserved cysteines are present in the sequence of these enzymes. They are expected to play a role in catalytic activity by acting as bases in proton abstraction from the substrate.


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 5 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 Aspartate/glutamate racemase 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 5 hidden Markov models representing the Aspartate/glutamate racemase 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 ]