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- Table of Contents
Facts about THO complex subunit 1.
TREX is recruited to spliced mRNAs with a transcription-independent mechanism, binds to mRNA upstream of the exon-junction complex (EJC) and can be recruited in a splicing- and cap-dependent way to a region near the 5' end of the mRNA where it functions in mRNA export to the cytoplasm through the TAP/NFX1 pathway. The TREX complex is essential for the export of Kaposi's sarcoma-associated herpesvirus (KSHV) intronless mRNAs and infectious virus production.
Human | |
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Gene Name: | THOC1 |
Uniprot: | Q96FV9 |
Entrez: | 9984 |
Belongs to: |
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No superfamily |
HPR1THO complex subunit 1; hTREX84; Nuclear matrix protein p84; P84; P84N5; THO complex 1; tho1
Mass (kDA):
75.666 kDA
Human | |
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Location: | 18p11.32 |
Sequence: | 18; NC_000018.10 (214348..268047, complement) |
Ubiquitous. Expressed in various cancer cell lines. Expressed at very low levels in normal breast epithelial cells and highly expressed in breast tumors. Expression is strongly associated with an aggressive phenotype of breast tumors and expression correlates with tumor size and the metastatic state of the tumor progression.
[Isoform 1]: Nucleus speckle. Nucleus, nucleoplasm. Nucleus matrix. Cytoplasm. Can shuttle between the nucleus and cytoplasm. Nuclear localization is required for induction of apoptotic cell death. Translocates to the cytoplasm during the early phase of apoptosis execution.; [Isoform 2]: Cytoplasm.
PMID: 7525595 by Durfee T., et al. The amino-terminal region of the retinoblastoma gene product binds a novel nuclear matrix protein that co-localizes to centers for RNA processing.
PMID: 15358532 by Gasparri F., et al. The death domain protein p84N5, but not the short isoform p84N5s, is cell cycle-regulated and shuttles between the nucleus and the cytoplasm.