12  structures 554  species 696  sequences

Family: THF (RF01831)

Description: THF riboswitch

Summary

Wikipedia annotation Edit Wikipedia article

The Rfam group coordinates the annotation of Rfam families in Wikipedia. This family is described by a Wikipedia entry Tetrahydrofolate riboswitch. More...

This page is based on a Wikipedia article. The text is available under the Creative Commons Attribution/Share-Alike License.

Sequences

Alignment

There are various ways to view or download the seed alignments that we store. You can use a sequence viewer to look at them, or you can look at a plain text version of the sequence in a variety of different formats. More...

View options

You can view Rfam seed alignments in your browser in various ways. Choose the viewer that you want to use and click the "View" button to show the alignment in a pop-up window.

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Formatting options

You can view or download Rfam seed alignments in several formats. Check either the "download" button, to save the formatted alignment, or "view", to see it in your browser window, and click "Generate".

Alignment format:
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Download

Download a gzip-compressed, Stockholm-format file containing the seed alignment for this family. You may find RALEE useful when viewing sequence alignments.

Submit a new alignment

We're happy receive updated seed alignments for new or existing families. Submit your new alignment and we'll take a look.

Secondary structure

This section shows a variety of different secondary structure representations for this family. More...

You can view the secondary structure of the family using the VARNA applet. You can see more information about VARNA iself here.

Species distribution

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Colour assignments

Archea Archea Eukaryota Eukaryota
Bacteria Bacteria Other sequences Other sequences
Viruses Viruses Unclassified Unclassified
Viroids Viroids Unclassified sequence Unclassified sequence

Selections

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

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Trees

This page displays the predicted phylogenetic tree for the alignment. More...

This tree was built using the fasttree method.

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

Structures

For those sequences which have a structure in the Protein DataBank, we generate a mapping between EMBL, PDB and Rfam coordinate systems. The table below shows the structures on which the THF family has been found.

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References

This section shows the database cross-references that we have for this Rfam family.

Literature references

  1. Ames TD, Rodionov DA, Weinberg Z, Breaker RR Chem Biol. 2010;17:681-685. A eubacterial riboswitch class that senses the coenzyme tetrahydrofolate. PUBMED:20659680

  2. Huang L, Ishibe-Murakami S, Patel DJ, Serganov A Proc Natl Acad Sci U S A. 2011;108:14801-14806. Long-range pseudoknot interactions dictate the regulatory response in the tetrahydrofolate riboswitch. PUBMED:21873197

  3. Trausch JJ, Ceres P, Reyes FE, Batey RT Structure. 2011;19:1413-1423. The structure of a tetrahydrofolate-sensing riboswitch reveals two ligand binding sites in a single aptamer. PUBMED:21906956

  4. Trausch JJ, Batey RT Chem Biol. 2014;21:205-216. A disconnect between high-affinity binding and efficient regulation by antifolates and purines in the tetrahydrofolate riboswitch. PUBMED:24388757

External database links

Curation and family details

This section shows the detailed information about the Rfam family. We're happy to receive updated or improved alignments for new or existing families. Submit your new alignment and we'll take a look.

Curation

Seed source Published; PMID:20659680
Structure source Published; PMID:20659680
Type Cis-reg; riboswitch;
Author Weinberg ZORCID logo, Ames T, Ontiveros-Palacios NORCID logo
Alignment details
Alignment Number of
sequences
full 595
seed 101

Model information

Build commands
cmbuild -F CM SEED
cmcalibrate --mpi CM
Search command
cmsearch --cpu 4 --verbose --nohmmonly -T 30.00 -Z 742849.287494 CM SEQDB
Gathering cutoff 36.0
Trusted cutoff 36.7
Noise cutoff 34.8
Covariance model Download