| 2000 |
NXF2 binds RNA, localizes to the nuclear envelope, and exhibits RNA export activity. Both human p15 homologues (NXT1 and NXT2) bind NXF2. The NTF2-like domain mediating heterodimerization with p15 and the ubiquitin-associated domain mediating nucleoporin interaction are conserved in NXF2. |
Functional RNA export assay, subcellular localization by fluorescence microscopy, binding assays for p15 interaction |
Molecular and cellular biology |
High |
11073998
|
| 2001 |
Depletion of Drosophila NXF2 (Dm NXF2) has no apparent phenotype on bulk mRNA export in cultured Drosophila cells, in contrast to NXF1/p15 depletion which causes robust nuclear accumulation of poly(A)+ RNA, indicating Dm NXF2 is not required for general mRNA export. |
RNAi depletion in Drosophila cells, fluorescence in situ hybridization for poly(A)+ RNA |
RNA (New York, N.Y.) |
High |
11780633
|
| 2004 |
C. elegans NXF-2 (CeNXF-2) specifically binds the TRE element of the tra-2 mRNA 3'UTR and inhibits its export via NXF-1, routing it instead through a CRM1-dependent pathway; removal of CeNXF-2 results in export of tra-2 via NXF-1. |
RNA binding assay (TRE element binding), genetic epistasis (NXF-2 loss-of-function), CRM1 inhibition with leptomycin B |
Molecular cell |
High |
15175155
|
| 2005 |
Mouse NXF2 localizes to the nucleus and nuclear envelope, binds phenylalanine-glycine (FG) repeat sequences of nucleoporins, heterodimerizes with p15/NXT1, and enhances nuclear export of an otherwise inefficiently exported mRNA substrate. Mouse NXF3 does not bind FG repeats and lacks mRNA export activity. |
GFP-tagging/subcellular localization, GST pulldown for nucleoporin binding, co-immunoprecipitation with p15/NXT1, mRNA export reporter assay |
Genomics |
High |
15820316
|
| 2005 |
Mouse NXF2 is an active mRNA export receptor expressed during brain development; it localizes to the nucleus, nuclear envelope, and cytoplasm. Mouse NXF7 localizes exclusively to cytoplasmic granules and lacks mRNA export activity despite conserved sequence. |
GFP-tagged protein localization, mRNA export activity assay, Western blot developmental expression analysis |
Nucleic acids research |
Medium |
16027110
|
| 2006 |
FMRP associates specifically with NXF2 but not with its close relative NXF1 in mouse male germ cells and hippocampal neurons, as shown by co-immunoprecipitation. |
Co-immunoprecipitation from brain and testis tissue |
RNA (New York, N.Y.) |
Medium |
16790844
|
| 2007 |
NXF2 interacts with the cytoplasmic motor protein KIF17 via its N-terminal domain; this interaction is required for the punctate localization of NXF2 in dendrites. NXF2-containing dendritic granules co-localize with KIF17, mRNA, and Staufen1, and move bidirectionally along dendrites in a microtubule-dependent manner. |
Yeast two-hybrid screening, GST pulldown, co-immunoprecipitation, live-cell fluorescence imaging of dendritic granule motility, domain deletion mapping |
Nucleic acids research |
High |
17403691
|
| 2007 |
In neuronal cells, both FMRP and NXF2 are present in Nxf1 mRNA-containing ribonucleoprotein particles; expression of NXF2 destabilizes Nxf1 mRNA, and this effect is abolished when Fmr1 is reduced by siRNA, demonstrating that FMRP and NXF2 collaborate to destabilize Nxf1 mRNA. |
Immunoprecipitation of mRNPs, quantitative RT-PCR, siRNA knockdown of Fmr1 |
Proceedings of the National Academy of Sciences of the United States of America |
High |
17548835
|
| 2009 |
Nxf2 null male mice exhibit meiotic arrest and/or reduced spermatogonial proliferation depending on genetic background; inactivation causes depletion of germ cells with age, demonstrating dual roles for Nxf2 in regulation of meiosis and maintenance of spermatogonial stem cells in vivo. |
Targeted gene deletion (homologous recombination in ES cells), histology, sperm motility analysis, BrdU proliferation assay |
Developmental biology |
High |
19345203
|
| 2010 |
NXF2 is cleaved by Taspase1 threonine protease; bioinformatic identification followed by experimental verification using biosensor and full-length protein cleavage assays confirmed NXF2 as a bona fide Taspase1 substrate. |
Cell-based translocation biosensor assay, scanning mutagenesis, cleavage site verification for full-length NXF2 |
The Journal of biological chemistry |
Medium |
21084304
|
| 2011 |
The crystal structure of C. elegans NXF2 (ceNXF2) NTF2 domain bound to ceNXT1 revealed contacts crucial for heterodimer stability and specificity, including a probable phosphoregulation site; the ceNXF2/ceNXT1 complex has at least two nucleoporin (Nup) binding pockets, one of which is formed at the heterodimer interface, demonstrating that NXT1 binding directly regulates NXF2's interaction with nucleoporins. |
X-ray crystallography, mutagenesis of interface residues, functional colocalization assay at nuclear envelope |
Journal of molecular biology |
High |
22123199
|
| 2012 |
NXF2 is required for accurate chromosome segregation in tumor cells; its depletion in non-small-cell lung cancer cells enhances multipolar spindle formation, increases mitotic transit time, induces micronucleation upon paclitaxel treatment, and disrupts microtubule stability/cytaster formation. |
siRNA knockdown, immunofluorescence for spindle morphology, live-cell imaging of mitosis, microtubule cytaster assay |
Molecular and cellular biology |
Medium |
22869527
|
| 2019 |
Drosophila Nxf2 forms the SFiNX complex with Panoramix (Panx) and Nxt1; this complex is required for Piwi-mediated co-transcriptional silencing of transposons. Nxf2 directly binds nascent transposon transcripts in a Piwi-dependent manner, and tethering Nxf2 to RNA is sufficient to silence target loci and accumulate repressive chromatin marks. Within the complex, Panoramix recruits heterochromatin effectors while Nxf2 licenses co-transcriptional silencing. Nxf2 and Panx are mutually required for each other's protein stability and localization. |
Co-immunoprecipitation, tethering assay (λN/BoxB system), ChIP for H3K9me3, genetic knockout (sterility/transposon derepression), protein stability assays, direct RNA binding |
Nature structural & molecular biology |
High |
31219034 31368590 31384064
|
| 2019 |
Nxf2 forms a complex with Piwi and Panx (Panx-Nxf2-p15); ectopic targeting of Nxf2 initiates co-transcriptional repression independently of H3K9me3 or H1, but continuous silencing requires HP1a and H1. Panx-Nxf2-p15 complex formation stabilizes Nxf2 and Panx protein levels. |
Co-immunoprecipitation, tethering reporter assay, ChIP for H3K9me3 and H1, genetic epistasis with HP1a/H1 mutants |
The EMBO journal |
High |
31368590
|
| 2019 |
The N-terminal portion of Panoramix is sufficient to induce transcriptional silencing; Nxf2 and Panx proteins are mutually required for proper localization and stability. Domain mapping identified the protein domains crucial for Nxf2/Panx complex formation. |
Domain deletion/truncation analysis, co-immunoprecipitation, protein stability assays, tethering reporter assay |
eLife |
High |
31219034
|
| 2021 |
The dynein light chain LC8/Cut-up (Ctp) is an essential component of the PICTS complex (containing Panoramix, Nxf2, and Nxt1); Ctp drives dimerisation of the PICTS complex through interaction with conserved motifs in Panoramix, and artificial dimerisation of Panoramix bypasses the need for Ctp, demonstrating dimerisation is the key function of Ctp in this silencing complex. |
Co-immunoprecipitation, genetic knockout (transposon derepression, loss of H3K9me3), tethering assay, artificial dimerization rescue experiment |
eLife |
High |
33538693
|
| 2021 |
Piwi/Nxf2-dependent recruitment of piRNA target loci to nuclear lamins was demonstrated; depletion of Piwi or Nxf2 decreases intra-TAD and increases inter-TAD interactions at TE-harboring regions, indicating Nxf2 participates in nuclear architectural changes required for transcriptional silencing. |
ChEP (chromatin enrichment for proteomics), DamID-seq for lamin association, Hi-C chromatin conformation capture, forced tethering system |
The EMBO journal |
High |
34337769
|
| 2022 |
C. elegans NXF-2 is specifically expressed in germ cells and forms a novel granular structure anchored to the nuclear periphery in the mitotic region of the gonad via XPO-1/CRM1-dependent activity; in the meiotic region NXF-2 granules are released to the cytoplasm. Inhibition of NXF-2 causes nuclear accumulation of tra-2 3'UTR-containing reporter mRNA, demonstrating NXF-2 is required for export of tra-2 mRNA via its 3'UTR. |
Immunofluorescence/live imaging for granule localization, CRM1 inhibition (leptomycin B equivalent), NES mutation, RNAi knockdown with reporter mRNA export assay |
Genes to cells : devoted to molecular & cellular mechanisms |
High |
35950937
|
| 2025 |
NXT2 binds NXF2 in vivo in human testis; this interaction is mediated by the NTF2-like domain of NXT2. NXF2 thus participates in the nuclear RNA export machinery as an NXT2-binding partner in the human testis. |
Co-immunoprecipitation (in vivo interaction), domain binding assay (NTF2-like domain of NXT2) |
Nature communications |
Medium |
40624043
|