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AFF2 - ALF transcription elongation factor 2 (human)

Gene
Symbol
Dates
  • Create:
    2016-09-14
  • Modify:
    2025-01-19
Description
This gene encodes a putative transcriptional activator that is a member of the AF4\FMR2 gene family. This gene is associated with the folate-sensitive fragile X E locus on chromosome X. A repeat polymorphism in the fragile X E locus results in silencing of this gene causing Fragile X E syndrome. Fragile X E syndrome is a form of nonsyndromic X-linked cognitive disability. In addition, this gene contains 6-25 GCC repeats that are expanded to >200 repeats in the disease state. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Jul 2016]
Predicted to enable G-quadruplex RNA binding activity. Involved in regulation of RNA splicing. Acts upstream of or within nuclear speck organization and regulation of gene expression. Located in nuclear speck. Implicated in X-linked intellectual developmental disorder 109.

The AFF2 gene provides instructions for making a protein that is found in the nucleus of cells but whose function is not well understood. Some studies suggest that it acts as a transcription factor, which means that it attaches (binds) to specific regions of DNA and helps control the activity of other genes, although the identity of these genes is unknown. Other studies show that the protein can attach to specific regions of messenger RNA (mRNA), which is a chemical cousin of DNA that serves as the genetic blueprint for protein production. It is thought that the AFF2 protein helps control the process by which the mRNA blueprint is cut and rearranged to produce different versions of proteins (alternative splicing).

One region of the AFF2 gene contains a particular DNA segment known as a CCG trinucleotide repeat, so called because this segment of three DNA building blocks (nucleotides) is repeated multiple times within the gene. In most people, the number of CCG repeats ranges from 4 to about 40.

1 Names and Identifiers

1.1 Synonyms

  • FMR2
  • FMR2P
  • FRAXE
  • MRX2
  • OX19
  • XLID109
  • AF4/FMR2 family member 2
  • protein FMR-2

1.2 Other Identifiers

1.2.1 HGNC ID

1.2.2 Ensembl ID

1.2.3 Alliance Gene ID

1.2.4 Bgee Gene ID

1.2.5 GenCC ID

1.2.6 KEGG Gene

1.2.7 MIM Number

1.2.8 Open Targets ID

1.2.9 PharmGKB ID

1.2.10 Pharos Target

1.2.11 VEuPathDB ID

1.2.12 Wikidata

3 Proteins

3.1 Protein Function

RNA-binding protein. Might be involved in alternative splicing regulation through an interaction with G-quartet RNA structure.

3.2 Protein Isoforms

Isoform
Isoform 1
UniProt ID
RefSeq Accession
Isoform
Isoform 2
UniProt ID
RefSeq Accession
Isoform
Isoform 3
UniProt ID
RefSeq Accession
Isoform
Isoform 4
UniProt ID
RefSeq Accession
Isoform
Isoform 5
UniProt ID
RefSeq Accession
Isoform
Isoform 6
UniProt ID
RefSeq Accession
Isoform
Isoform 7
UniProt ID
RefSeq Accession

3.3 Protein 3D Structures

3.3.1 AlphaFold Structures

Highly accurate protein structure prediction with AlphaFold. Nature. 2021 Aug;596(7873):583-589. DOI:10.1038/s41586-021-03819-2. PMID:34265844; PMCID:PMC8371605

3.4 Protein Targets

4 BioAssays

4.1 RNAi BioAssays

5 Diseases and Phenotypes

5.1 GHR Health Conditions

5.2 KEGG Diseases

5.3 OMIM Phenotypes

5.4 MedGen Diseases

5.5 Gene-Disease Associations

6 Interactions and Pathways

6.1 Chemical-Gene Interactions

6.2 Interactions

6.3 Pathways

7 Expression

8 Target Development Level

9 Literature

9.1 Consolidated References

9.2 Gene-Chemical Co-Occurrences in Literature

9.3 Gene-Gene Co-Occurrences in Literature

9.4 Gene-Disease Co-Occurrences in Literature

10 Patents

10.1 Gene-Chemical Co-Occurrences in Patents

10.2 Gene-Gene Co-Occurrences in Patents

10.3 Gene-Disease Co-Occurrences in Patents

11 Classification

11.1 Gene Family

11.2 Gene Ontology: Biological Process

11.3 Gene Ontology: Cellular Component

11.4 Gene Ontology: Molecular Function

12 Information Sources

  1. NCBI Gene
    LICENSE
    NCBI Website and Data Usage Policies and Disclaimers
    https://www.ncbi.nlm.nih.gov/home/about/policies/
  2. PubChem
  3. Alliance of Genome Resources
    LICENSE
    All annotations and data produced by Alliance members that are accessible from alliancegenome.org are distributed under a CC BY 4.0 license (https://creativecommons.org/licenses/by/4.0/).
    https://www.alliancegenome.org/privacy-warranty-licensing
  4. MedlinePlus Genetics
    LICENSE
    Terms and conditions of use apply to all persons or organizations that publish or distribute content from the MedlinePlus website.
    https://medlineplus.gov/about/using/usingcontent/
  5. BioGRID
    LICENSE
    The MIT License (MIT); Copyright Mike Tyers Lab
    https://wiki.thebiogrid.org/doku.php/terms_and_conditions
  6. STRING: functional protein association networks
  7. Comparative Toxicogenomics Database (CTD)
    LICENSE
    It is to be used only for research and educational purposes. Any reproduction or use for commercial purpose is prohibited without the prior express written permission of NC State University.
    http://ctdbase.org/about/legal.jsp
  8. Drug Gene Interaction database (DGIdb)
    LICENSE
    The data used in DGIdb is all open access and where possible made available as raw data dumps in the downloads section.
    http://www.dgidb.org/downloads
  9. Open Targets
    LICENSE
    Datasets generated by the Open Targets Platform are freely available for download.
    https://platform-docs.opentargets.org/licence
  10. Gene Curation Coalition (GenCC)
    LICENSE
    The GenCC data are available free of restriction under a CC0 1.0 Universal (CC0 1.0) Public Domain Dedication.
    https://thegencc.org/terms.html
    AFF2
  11. HUGO Gene Nomenclature Committee (HGNC)
    LICENSE
    No restrictions are imposed on access to, or use of, the data provided by the HGNC, which are provided to enhance knowledge and encourage progress in the scientific community.
    https://www.genenames.org/about/
  12. KEGG
    LICENSE
    Academic users may freely use the KEGG website. Non-academic use of KEGG generally requires a commercial license
    https://www.kegg.jp/kegg/legal.html
  13. NCBI Gene Expression Omnibus (GEO)
  14. NCBI MedGen
    LICENSE
    NCBI Website and Data Usage Policies and Disclaimers
    https://www.ncbi.nlm.nih.gov/home/about/policies/
  15. Online Mendelian Inheritance in Man (OMIM)
    LICENSE
    The OMIM database is made available to the general public subject to certain restrictions.
    https://omim.org/help/copyright
  16. PharmGKB
    LICENSE
    PharmGKB data are subject to the Creative Commons Attribution-ShareALike 4.0 license (https://creativecommons.org/licenses/by-sa/4.0/).
    https://www.pharmgkb.org/page/policies
  17. Pharos
    LICENSE
    Data accessed from Pharos and TCRD is publicly available from the primary sources listed above. Please respect their individual licenses regarding proper use and redistribution.
    https://pharos.nih.gov/about
  18. Swiss Institute of Bioinformatics Bgee
    LICENSE
    Creative Commons Zero license (CC0)
    https://www.bgee.org/about/
  19. UniProt
    LICENSE
    We have chosen to apply the Creative Commons Attribution (CC BY 4.0, http://creativecommons.org/licenses/by/4.0/) License to all copyrightable parts of our databases.
    https://www.uniprot.org/help/license
  20. VEuPathDB: The Eukaryotic Pathogen, Vector and Host Informatics Resource
    LICENSE
    All data on VEuPathDB websites are provided freely for public use.
    https://veupathdb.org/veupathdb/app/static-content/about.html
  21. Wikidata
  22. Gene Ontology (GO)
    LICENSE
    Gene Ontology Consortium data and data products are licensed under the Creative Commons Attribution 4.0 Unported License (https://creativecommons.org/licenses/by/4.0/legalcode)
    http://geneontology.org/docs/go-citation-policy/
  23. AlphaFold DB
    LICENSE
    All of the data provided is freely available for both academic and commercial use under Creative Commons Attribution 4.0 (CC-BY 4.0) licence terms.
    https://alphafold.ebi.ac.uk/faq
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