| 1996 |
Yeast Nup188p is a major constituent of the nuclear pore complex (NPC) that localizes to both the cytoplasmic and nucleoplasmic faces of the NPC core, physically interacts with the pore membrane protein Pom152p and nucleoporin Nic96p, and is required for normal nuclear envelope and NPC morphology; null mutants appear normal but certain alleles cause dominant NPC-associated nuclear envelope herniations. |
Biochemical fractionation of NPCs, immunofluorescence, immunoelectron microscopy, genetic deletion and allelic analysis |
The Journal of cell biology |
High |
8682855
|
| 1996 |
The C-terminal domain of Nic96p functionally and physically interacts with Nup188p in an allele-specific fashion; affinity purification of Nup188p co-purifies a fraction of Nic96p, placing Nup188p in a direct protein–protein interaction with Nic96p within the NPC scaffold. |
Allele-specific genetic interaction, affinity purification (ProtA-Nup188p pull-down), co-fractionation |
The Journal of cell biology |
High |
8682854
|
| 1995 |
Genetic epistasis in yeast shows that deletion of NUP188 is not lethal alone, but pairwise deletion with POM152 or NUP170 is synthetically lethal, placing Nup188p in a functionally redundant inner-ring scaffold substructure of the NPC together with Pom152p and Nup170p. |
Synthetic lethal genetic screen, pairwise deletion analysis |
The Journal of cell biology |
High |
8522578
|
| 2000 |
Deletion of NUP188 (nup188-Δ) in yeast increases passive nuclear envelope permeability: passive export rates of NLS-GFP reporters are significantly faster and the equilibrium sieving limit of the diffusion channel is greater than wild-type, indicating that Nup188p contributes to establishing the functional resting diameter of the NPC central transport channel. |
In vivo passive permeability assay using NLS-GFP and NES-GFP reporters of defined molecular weights in nup188-Δ cells |
The Journal of cell biology |
High |
10831607
|
| 2000 |
Vertebrate (Xenopus) Nup188 exists in a complex with Nup93 (xNup93) and Nup205 (xNup205) at the nuclear pore; the Nup93-Nup188-Nup205 complex does not bind WGA directly but associates indirectly via N-acetylglucosamine-modified nucleoporins, and Nup188 assembles into annulate lamellae pore structures. |
WGA-affinity chromatography of Xenopus egg extracts, organelle trap (annulate lamellae assembly) assay, identification of human NUP188 gene |
Molecular biology of the cell |
High |
11029043
|
| 2013 |
The structure of Nup188 was determined: it folds into an extended stack of helices where an N-terminal ~130 kDa segment forms an intricate closed ring and the C-terminal region is a superhelical structure with distant similarity to flexible S-shaped nuclear transport receptors (NTRs). Both Nup188 and Nup192 specifically bind FG-repeats and can translocate through NPCs by facilitated diffusion, suggesting an evolutionary relationship between NPC scaffold and soluble transport machinery. |
X-ray crystallography (structure determination), FG-repeat binding assay, facilitated diffusion assay through NPCs |
eLife |
High |
23795296
|
| 2013 |
Human Nup188 localizes to spindle poles during mitosis via its C-terminal region; depletion of Nup188 causes failure of chromosome alignment at the metaphase plate, impairs robust K-fiber (kinetochore microtubule bundle) formation, and perturbs NuMA localization to spindle poles. Nup188 directly interacts with NuMA. |
siRNA depletion, immunofluorescence, co-immunoprecipitation (Nup188–NuMA interaction), live-cell imaging |
Cancer science |
Medium |
23551833
|
| 2016 |
Nup188 (as part of the Nup93 sub-complex) associates with the HOXA gene cluster promoters and is required for tethering the HOXA locus to the nuclear periphery and repressing HOXA gene expression; depletion of the Nup93/Nup188/Nup205 sub-complex upregulates HOXA genes, increases active histone marks (H3K9ac), and decreases repressive marks (H3K27me3) at the HOXA1 promoter. |
ChIP, siRNA knockdown, 3D-FISH, histone mark analysis by ChIP |
Epigenetics & chromatin |
Medium |
27980680
|
| 2017 |
GLFG repeats of Nup116 function redundantly with Nup188, a non-essential scaffold nucleoporin, to stabilize critical interactions within the NPC scaffold needed for late steps of NPC assembly; GLFG repeats directly bind multiple scaffold Nups including Nup188 in vitro. |
In vitro FG-repeat binding assay, genetic redundancy analysis (nup116Δ/nup188 synthetic interactions), NPC assembly assay |
Cell |
High |
29033133
|
| 2018 |
The integral membrane protein Brl1 physically interacts with Nup188 (by immunoprecipitation) at NPC assembly sites, indicating a direct role for Brl1 in NPC biogenesis through contact with this inner-ring scaffold component. |
Immunoprecipitation (Brl1–Nup188 co-IP), split-YFP analysis |
The Journal of cell biology |
Medium |
29439116
|
| 2018 |
Quantitative fluorescence microscopy in intact yeast NPCs reveals that Nup188 and its paralog Nup192 form a paralog pair whose altered expression leads to significant changes in NPC stoichiometry, inducing voids in NPC structure or substitution of one paralog by the other, demonstrating compositional plasticity of the NPC. |
Quantitative fluorescence microscopy (NuRIM pipeline), genetic manipulation of Nup expression |
Proceedings of the National Academy of Sciences of the United States of America |
Medium |
29632211
|
| 2019 |
TDP-43 controls mRNA splicing of NUP188; complete loss of TDP-43 in human cells results in aberrant NUP188 splicing and nuclear envelope morphological defects. |
TDP-43 knockout human cells, transcriptomic analysis, cell biological phenotyping |
Life science alliance |
Medium |
31527135
|
| 2020 |
Nup188 localizes to the pericentriolar material (PCM) of centrosomes independently of NPCs: pulse-chase labeling shows centrosomal Nup188 is newly synthesized and does not exchange with NPC-resident Nup188 even after mitotic NPC breakdown. The centrosomal pool is subject to proteasomal degradation (unlike the NPC pool). Nup188 directly binds Cep152 (by co-IP/proximity labeling), and depletion of Nup188 impairs centriole duplication at or upstream of Sas6 loading. |
Pulse-chase fluorescent labeling, super-resolution microscopy, proximity labeling (BioID), proteasome inhibition, co-immunoprecipitation (Nup188–Cep152), siRNA depletion with centriole duplication readout |
The Journal of cell biology |
High |
32211895
|
| 2022 |
Near-atomic composite structures of the human and S. cerevisiae NPC were determined by combining crystal structures and cryo-EM structures of Nup188 and Nup192 scaffold hubs bound to Nic96, Nup145N, and Nup53 linker nucleoporin binding regions, revealing that Nup188 forms a question mark-shaped keystone of a hetero-octameric inner ring complex. Linkers bind scaffold surface pockets of Nup188 through short defined motifs. Structure-guided mutagenesis in yeast confirmed the physiological relevance of linker-scaffold interactions. Nup188 is positioned exclusively in the inner ring (not the outer rings) in the intact NPC. |
X-ray crystallography, single-particle cryo-EM, cryo-ET docking, biochemical reconstitution, structure-guided mutagenesis in S. cerevisiae |
Science (New York, N.Y.) |
High |
35679425
|
| 2022 |
NUP188 was identified as a new binding partner of Nesprin-2 (LINC complex component) at the nuclear envelope; this interaction positions the NPC to capture SV40 virus upon its release from Nesprin-2, enabling NPC-mediated nuclear translocation of the virus. |
Co-immunoprecipitation (NUP188–Nesprin-2 interaction), siRNA depletion, viral infection assays |
PLoS pathogens |
Medium |
36067270
|
| 2011 |
Morpholino knockdown of NUP188 in Xenopus strongly disrupts morphological left-right development and expression of pitx2, a molecular marker of left-right patterning, placing NUP188 as a functional gene required for left-right organizer activity. |
Morpholino knockdown in Xenopus, in situ hybridization for pitx2, morphological scoring of LR defects |
Proceedings of the National Academy of Sciences of the United States of America |
Medium |
21282601
|
| 1997 |
The N-terminal GLFG domain of Nup145p (N-Nup145p), generated by in vivo cleavage, becomes essential in a nup188 mutant background, and generation of a free N-domain is a prerequisite for complementation of this synthetic lethal interaction, placing Nup188p in a functional relationship with the GLFG-containing transport domain of Nup145p. |
Genetic synthetic lethality analysis, in vivo cleavage domain dissection |
The EMBO journal |
Medium |
9305650
|
| 1999 |
Full-length Pom152p (including its lumenal C-terminal domain) is uniquely required to rescue nup188 mutations, whereas N-terminal or transmembrane segments alone are insufficient, indicating that the lumenal structures of Pom152p play an important role in functional interactions with Nup188p on the pore-side of the NPC. |
Domain deletion/truncation complementation assay in synthetic lethal nup188 strains |
The Journal of biological chemistry |
Medium |
9988776
|
| 1999 |
Elevated levels of SSA1 (but not SSB1) suppress NLS-GFP nuclear localization defects in nup188-Δ cells; NES-less Ssb1p also stimulates nuclear transport in nup188-Δ cells, demonstrating a genetic interaction between NUP188 and Hsp70 chaperones in the NLS-directed import pathway. |
Genetic suppression assay, GFP reporter localization in nup188-Δ cells, Ssa1p/Ssb1p overexpression |
The Journal of biological chemistry |
Medium |
10347213
|
| 2018 |
A cold-sensitive nup188-brr7 allele causes defects in both select protein import pathways and mRNA export in S. cerevisiae, linking Nup188p (as part of the Nic96 nucleoporin complex) to bidirectional nucleocytoplasmic transport. |
Cold-sensitive mutant screen, dT50 in situ hybridization assay (poly-A RNA export), NLS-GFP import assay |
G3 (Bethesda, Md.) |
Medium |
30021831
|
| 2025 |
In a genome-wide screen for yeast genes involved in break-induced replication (BIR), Nup188 was identified as functioning after DNA synthesis to support BIR repair completion, acting sequentially after Nup84 (which acts before DNA synthesis). |
Genome-wide deletion screen for BIR defects, epistasis ordering of Nup84 vs. Nup188 in BIR |
Nature communications |
Low |
41398407
|
| 2026 |
NUP188 promotes liver cancer stem cell (LCSC) stemness through two mechanisms: (1) facilitating importin-β-mediated nuclear import of OCT4 (POU5F1), and (2) stabilizing SOX2 by preventing its lysosome-dependent degradation. A NUP188-targeting peptide suppressed tumor sphere formation and inhibited tumor growth in vivo. |
siRNA/KO functional assays, co-immunoprecipitation (NUP188–importin-β), lysosome inhibition rescue, in vitro and in vivo tumor assays, NUP188-targeting peptide |
The American journal of pathology |
Medium |
42119810
|