SUPERFAMILY 1.73 HMM library and genome assignments server


Superoxide reductase-like 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:   Superoxide reductase-like [ 49367]
Families:   Superoxide reductase-like [ 49368] (2)
  binds iron in the site that is topologically equivalent to the copper-binding site of cupredoxins


InterPro annotation
Cross references IPR002742 SSF49367 Protein matches
Abstract

Desulfoferrodoxins contains two types of iron: an Fe-S4 site very similar to that found in desulfoferrodoxin from Desulfovibrio gigas, and an octahedral coordinated high-spin ferrous site most probably with nitrogen/oxygen-containing ligands. Due to this rather unusual combination of active centres, this novel protein is named desulfoferrodoxin [PubMed2174880].

This domain comprises essentially the full length of neelaredoxin (, [PubMed8001576]), a monomeric, blue, non-haeme iron protein of D. gigas said to bind two iron atoms per monomer with identical spectral properties. Neelaredoxin was shown recently to have significant superoxide dismutase activity [PubMed9914498]. This domain is also found (in a form in which the distance between the motifs H[HWYF]IXW and CN[IL]HGXW is somewhat shorter) as the C-terminal domain of desulfoferrodoxin, which is said to bind a single ferrous iron atom. The N-terminal domain of desulfoferrodoxin is described by .


InterPro database

Functional annotation
General category Metabolism
Detailed category Redox

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 3 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 Superoxide reductase-like 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 3 hidden Markov models representing the Superoxide reductase-like 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 ]