SUPERFAMILY 1.73 HMM library and genome assignments server


beta-Galactosidase/glucuronidase domain superfamily

SCOP classification
Root:   SCOP hierarchy in SUPERFAMILY [ 0] (11)
Class:   All beta proteins [ 48724] (165)
Fold:   Immunoglobulin-like beta-sandwich [ 48725] (27)
  sandwich; 7 strands in 2 sheets; greek-key
some members of the fold have additional strands
Superfamily:   beta-Galactosidase/glucuronidase domain [ 49303]
Families:   beta-Galactosidase/glucuronidase domain [ 49304] (2)


InterPro annotation
Cross references IPR006102 SSF49303 Protein matches
Abstract

Glycoside hydrolase family 2 comprises enzymes with several known activities: beta-galactosidase ; beta-mannosidase ; beta-glucuronidase .

These enzymes contain a conserved glutamic acid residue which has been shown [PubMed1350782], in Escherichia coli lacZ , to be the general acid/base catalyst in the active site of the enzyme.

This entry describes the immunoglobulin-like beta-sandwich domain [PubMed8008071].


InterPro database

Functional annotation
General category Metabolism
Detailed category Carbohydrate metabolism and transport

Function annotation of SCOP domain superfamilies

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Internal database links

The SUPERFAMILY hidden Markov model library has been used to carry out SCOP domain assignments to all genomes at the superfamily level. Click on the 'Genome Assignments' icon above to view the genome assignments for this superfamily.


Alignments of sequences to

Alignments of sequences to 5 models in this superfamily are available by clicking on the superfamily level 'Alignments' icon above. PDB sequences less than 40% identical are shown by default, but any other sequences may be aligned. Select PDB sequences, genome sequences, or paste in or upload your own.


It is possible to browse and view the proteins in the genomes which have different combinations of domains including a beta-Galactosidase/glucuronidase domain domain. Click on the 'Domain Combinations' icon.


To view the distribution of domain superfamilies, or families, across the major taxonomic kingdoms or genomes within a kingdom click on the 'TaxViz' icon above. This gives an immediate impression of how superfamilies, or families, are restricted to certain kingdoms of life.


Undirected domain occurrence networks are available for all superfamilies. Nodes in these networks represent genomes. Connections between nodes represent the presence of domain architectures, which contain the superfamily of interest, in both genomes.

There are 5 hidden Markov models representing the beta-Galactosidase/glucuronidase domain superfamily. Information on how the models are built, and plots showing hydrophobicity, match emmission probabilities and insertion/deletion probabilities can be viewed by clicking on the icon above.


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