Tbio ALYREF THO complex subunit 4

Protein Summary

Description

Export adapter involved in nuclear export of spliced and unspliced mRNA. Binds mRNA which is thought to be transferred to the NXF1-NXT1 heterodimer for export (TAP/NFX1 pathway). Component of the TREX complex which is thought to couple mRNA transcription, processing and nuclear export, and specifically associates with spliced mRNA and not with unspliced pre-mRNA. TREX is recruited to spliced mRNAs by a transcription-independent mechanism, binds to mRNA upstream of the exon-junction complex (EJC) and is recruited in a splicing- and cap-dependent manner to a region near the 5' end of the mRNA where it functions in mRNA export to the cytoplasm. TREX recruitment occurs via an interaction between ALYREF/THOC4 and the cap-binding protein NCBP1. The TREX complex is essential for the export of Kaposi's sarcoma-associated herpesvirus (KSHV) intronless mRNAs and infectious virus production; ALYREF/THOC4 mediates the recruitment of the TREX complex to the intronless viral mRNA. Required for TREX complex assembly and for linking DDX39B to the cap-binding complex (CBC). In conjunction with THOC5 functions in NXF1-NXT1 mediated nuclear export of HSP70 mRNA; both proteins enhance the RNA binding activity of NXF1 and are required for NXF1 localization to the nuclear rim. Involved in the nuclear export of intronless mRNA; proposed to be recruited to intronless mRNA by ATP-bound DDX39B. Involved in transcription elongation and genome stability. Acts as chaperone and promotes the dimerization of transcription factors containing basic leucine zipper (bZIP) domains and thereby promotes transcriptional activation. The protein encoded by this gene is a heat stable, nuclear protein and functions as a molecular chaperone. It is thought to regulate dimerization, DNA binding, and transcriptional activity of basic region-leucine zipper (bZIP) proteins. [provided by RefSeq, Jul 2008]

Uniprot Accession IDs

• Q86V81
• O43672
• Tho4

Gene Name

• ALYREF

Ensembl ID

• ENST00000331204
• ENSP00000331817
• ENSG00000183684

Symbol

• ALY
• BEF
• THOC4
• ALY
• BEF
• REF
• THOC4
• ALY/REF

Knowledge Table

Most Knowledge About	Knowledge Value (0 to 1 scale)
interacting protein	1
biological process	0.83
protein complex	0.83
small molecule perturbation	0.82
cellular component	0.81

Protein Classes

PANTHER Classes

Protein / Nucleic Acid Binding / Rna Binding Protein / Tho Complex Subunit 4

DTO Classes

Protein / Nucleic Acid Binding / Rna Binding Protein / Tho Complex Subunit 4

IDG Development Level Summary

Tdark

These are targets about which virtually nothing is known. They do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 306.92   (req: < 5)

Gene RIFs: 31   (req: <= 3)

Antibodies: 0   (req: <= 50)

Tbio

These targets do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 306.92   (req: >= 5)

Gene RIFs: 31   (req: > 3)

Antibodies: 0   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 11

Tchem

Target has at least one ChEMBL compound with an activity cutoff of < 30 nM - AND - satisfies the preceding conditions

Active Ligand: 0

Tclin

Target has at least one approved drug - AND - satisfies the preceding conditions

Active Drug: 0