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52  structures 3214  species 2  interactions 5362  sequences 18  architectures

Family: FeoA (PF04023)

Summary: FeoA domain

Pfam includes annotations and additional family information from a range of different sources. These sources can be accessed via the tabs below.

The Pfam group coordinates the annotation of Pfam families in Wikipedia, but we have not yet assigned a Wikipedia article to this family. If you think that a particular Wikipedia article provides good annotation, please let us know.

This tab holds the annotation information that is stored in the Pfam database. As we move to using Wikipedia as our main source of annotation, the contents of this tab will be gradually replaced by the Wikipedia tab.

FeoA domain Provide feedback

This family includes FeoA a small protein, probably involved in Fe2+ transport [1]. This presumed short domain is also found at the C-terminus of a variety of metal dependent transcriptional regulators. This suggests that this domain may be metal-binding. In most cases this is likely to be either iron or manganese.

Literature references

  1. Kammler M, Schon C, Hantke K; , J Bacteriol 1993;175:6212-6219.: Characterization of the ferrous iron uptake system of Escherichia coli. PUBMED:8407793 EPMC:8407793


External database links

This tab holds annotation information from the InterPro database.

InterPro entry IPR007167

This entry represents the core domain of the ferrous iron (Fe2+) transport protein FeoA found in bacteria. This domain also occurs at the C terminus in related proteins. The transporter Feo is composed of three proteins: FeoA a small, soluble SH3-domain protein probably located in the cytosol; FeoB, a large protein with a cytosolic N-terminal G-protein domain and a C-terminal integral inner-membrane domain containing two 'Gate' motifs which likely functions as the Fe2+ permease; and FeoC, a small protein apparently functioning as an [Fe-S]-dependent transcriptional repressor [PUBMED:8407793, PUBMED:16718600]. Feo allows the bacterial cell to acquire iron from its environment.

Gene Ontology

The mapping between Pfam and Gene Ontology is provided by InterPro. If you use this data please cite InterPro.

Domain organisation

Below is a listing of the unique domain organisations or architectures in which this domain is found. More...

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Pfam Clan

This family is a member of clan TRB (CL0206), which has the following description:

This beta-barrel domain is found at the C-terminus of a variety of transcriptional repressor proteins.

The clan contains the following 3 members:

BPL_C FeoA KorB_C

Alignments

We store a range of different sequence alignments for families. As well as the seed alignment from which the family is built, we provide the full alignment, generated by searching the sequence database using the family HMM. We also generate alignments using four representative proteomes (RP) sets, the NCBI sequence database, and our metagenomics sequence database. More...

View options

We make a range of alignments for each Pfam-A family. You can see a description of each above. You can view these alignments in various ways but please note that some types of alignment are never generated while others may not be available for all families, most commonly because the alignments are too large to handle.

  Seed
(284)
Full
(5362)
Representative proteomes NCBI
(3443)
Meta
(369)
RP15
(485)
RP35
(947)
RP55
(1153)
RP75
(1271)
Jalview View  View  View  View  View  View  View  View 
HTML View    View  View  View  View     
PP/heatmap 1   View  View  View  View     
Pfam viewer View  View             

1Cannot generate PP/Heatmap alignments for seeds; no PP data available

Key: ✓ available, x not generated, not available.

Format an alignment

  Seed
(284)
Full
(5362)
Representative proteomes NCBI
(3443)
Meta
(369)
RP15
(485)
RP35
(947)
RP55
(1153)
RP75
(1271)
Alignment:
Format:
Order:
Sequence:
Gaps:
Download/view:

Download options

We make all of our alignments available in Stockholm format. You can download them here as raw, plain text files or as gzip-compressed files.

  Seed
(284)
Full
(5362)
Representative proteomes NCBI
(3443)
Meta
(369)
RP15
(485)
RP35
(947)
RP55
(1153)
RP75
(1271)
Raw Stockholm Download   Download   Download   Download   Download   Download   Download   Download  
Gzipped Download   Download   Download   Download   Download   Download   Download   Download  

You can also download a FASTA format file containing the full-length sequences for all sequences in the full alignment.

External links

MyHits provides a collection of tools to handle multiple sequence alignments. For example, one can refine a seed alignment (sequence addition or removal, re-alignment or manual edition) and then search databases for remote homologs using HMMER3.

Pfam alignments:

HMM logo

HMM logos is one way of visualising profile HMMs. Logos provide a quick overview of the properties of an HMM in a graphical form. You can see a more detailed description of HMM logos and find out how you can interpret them here. More...

Trees

This page displays the phylogenetic tree for this family's seed alignment. We use FastTree to calculate neighbour join trees with a local bootstrap based on 100 resamples (shown next to the tree nodes). FastTree calculates approximately-maximum-likelihood phylogenetic trees from our seed alignment.

Note: You can also download the data file for the tree.

Curation and family details

This section shows the detailed information about the Pfam family. You can see the definitions of many of the terms in this section in the glossary and a fuller explanation of the scoring system that we use in the scores section of the help pages.

Curation View help on the curation process

Seed source: COG1918
Previous IDs: none
Type: Domain
Author: Bateman A
Number in seed: 284
Number in full: 5362
Average length of the domain: 72.70 aa
Average identity of full alignment: 22 %
Average coverage of the sequence by the domain: 50.92 %

HMM information View help on HMM parameters

HMM build commands:
build method: hmmbuild -o /dev/null HMM SEED
search method: hmmsearch -Z 23193494 -E 1000 --cpu 4 HMM pfamseq
Model details:
Parameter Sequence Domain
Gathering cut-off 20.9 20.9
Trusted cut-off 20.9 20.9
Noise cut-off 20.8 20.8
Model length: 74
Family (HMM) version: 9
Download: download the raw HMM for this family

Species distribution

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This visualisation provides a simple graphical representation of the distribution of this family across species. You can find the original interactive tree in the adjacent tab. More...

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Tree controls

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The tree shows the occurrence of this domain across different species. More...

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Interactions

There are 2 interactions for this family. More...

Fe_dep_repress Fe_dep_repr_C

Structures

For those sequences which have a structure in the Protein DataBank, we use the mapping between UniProt, PDB and Pfam coordinate systems from the PDBe group, to allow us to map Pfam domains onto UniProt sequences and three-dimensional protein structures. The table below shows the structures on which the FeoA domain has been found. There are 52 instances of this domain found in the PDB. Note that there may be multiple copies of the domain in a single PDB structure, since many structures contain multiple copies of the same protein seqence.

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