SUPERFAMILY 1.73 HMM library and genome assignments server


IpsF-like superfamily

SCOP classification
Root:   SCOP hierarchy in SUPERFAMILY [ 0] (11)
Class:   Alpha and beta proteins (a+b) [ 53931] (334)
  Mainly antiparallel beta sheets (segregated alpha and beta regions)
Fold:   Bacillus chorismate mutase-like [ 55297] (7)
  core: beta-alpha-beta-alpha-beta(2); mixed beta-sheet: order: 1423, strand 4 is antiparallel to the rest
Superfamily:   IpsF-like [ 69765]
Families:   IpsF-like [ 69766] (2)


Superfamily statistics
Genomes (779) UniProt 15.0 PDB chains (SCOP 1.73)
Domains 787 1,020 10
Proteins 787 1,019 10


Functional annotation
General category Metabolism
Detailed category Other enzymes

Function annotation of SCOP domain superfamilies
InterPro annotation
Cross references IPR003526 SSF69765 Protein matches
Abstract

This entry represents MECDP (2-C-methyl-D-erythritol 2,4-cyclodiphosphate) synthetase, an enzyme in the non-mevalonate pathway of isoprenoid synthesis, isoprenoids being essential in all organisms. Isoprenoids can also be synthesized through the mevalonate pathway. The non-mevolante route is used by many bacteria and human pathogens, including Mycobacterium tuberculosis and Plasmodium falciparum. This route appears to involve seven enzymes. MECDP synthetase catalyses the intramolecular attack by a phosphate group on a diphosphate, with cytidine monophosphate (CMP) acting as the leaving group to give the cyclic diphosphate product MEDCP. The enzyme is a trimer with three active sites shared between adjacent copies of the protein. The enzyme also has two metal binding sites, the metals playing key roles in catalysis[PubMed12499535].

A number of proteins from eukaryotes and prokaryotes share this common N-terminal signature and appear to be involved in terpenoid biosynthesis. The ygbB protein is a putative enzyme of this type [PubMed10694574].


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 IpsF-like 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 IpsF-like 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 ]