| 2005 |
PARG1 (ARHGAP29) was identified as a putative effector of Rap2: the ZPH (ZK669.1a and PARG1 homology) region of PARG1 mediates GTP-dependent interaction with Rap2 (but not Ras or Rap1), and Rap2 suppresses the in vivo RhoA-inactivating cytoskeletal action of PARG1 but not of a PARG1 mutant lacking the ZPH region. PARG1 also exhibits RhoGAP activity in vitro. |
Yeast two-hybrid screening, in vitro RhoGAP activity assay, co-immunoprecipitation, mutagenesis (ZPH deletion), morphological cytoskeletal assay in fibroblasts |
Biochemical and biophysical research communications |
Medium |
15752761
|
| 2013 |
Rasip1 acts as a Rap1 effector and binds ARHGAP29 (ArhGAP29); the Rap1–Rasip1–ArhGAP29 complex mediates Rap1-induced cell spreading and endothelial barrier function by inhibiting Rho signaling and suppressing stress fiber formation. Rasip1 cooperates with Radil to promote junctional tightening through this pathway. |
FRET (Rasip1–Rap1 interaction in cells), Co-IP/pulldown (Rasip1–ArhGAP29), siRNA knockdown with cell spreading and barrier function readouts (TEER), dominant-negative Rho constructs |
Proceedings of the National Academy of Sciences of the United States of America |
High |
23798437
|
| 2015 |
Rap1 induces independent translocation of Rasip1 and a Radil–ArhGAP29 complex to the plasma membrane, where they assemble into a multimeric complex required for Rap1-induced inhibition of Rho signaling and increased endothelial barrier function, revealing spatiotemporal control via successive membrane translocations. |
Live-cell imaging of protein translocation, Co-IP to detect Radil–ArhGAP29 complex, siRNA knockdown with TEER/barrier assay, Rap1 activation assays |
Molecular and cellular biology |
High |
25963656
|
| 2017 |
YAP transcriptionally upregulates ARHGAP29, which then suppresses the RhoA–LIMK–cofilin pathway, destabilizing F-actin and promoting F-actin/G-actin turnover; this cytoskeletal rearrangement increases cancer cell migration and metastatic potential. |
ChIP/luciferase reporter (YAP→ARHGAP29 transcription), siRNA knockdown, ARHGAP29 overexpression, F-actin/G-actin ratio assay, LIMK/cofilin phosphorylation western blot, transwell migration assay, mouse CTC model |
Cell reports |
High |
28538170
|
| 2017 |
A missense variant in ARHGAP29 (p.Ser552Pro) identified in a family with cleft palate lacks the GAP activity of wild-type ARHGAP29; keratinocytes transfected with wild-type ARHGAP29 migrate faster than those transfected with p.Ser552Pro or empty vector, demonstrating that Ser552 is required for ARHGAP29's pro-migratory function. |
Zebrafish functional assay (in vivo), keratinocyte migration assay (transfection with WT vs. variant ARHGAP29), Sanger sequencing validation |
Birth defects research |
Medium |
28029220
|
| 2017 |
Depletion of PARG1 (ARHGAP29) by siRNA in human RCC cell lines inhibited proliferation via G1 arrest through upregulation of p53 and p21Cip1/Waf1, and inhibited invasion; both effects were mediated by increased RhoA–ROCK activity. Conversely, PARG1 overexpression in HEK293T cells promoted proliferation and invasion via inhibition of RhoA–ROCK. |
siRNA knockdown, cell cycle analysis, western blot (p53, p21, RhoA-GTP, ROCK activity), invasion assay, overexpression in HEK293T |
Translational oncology |
Medium |
28131798
|
| 2017 |
ARHGAP29 heterozygosity for a nonsense allele (K326X) in mice causes embryonic lethality in homozygotes and abnormal oral epithelial adhesions in heterozygotes; Arhgap29 protein is present in periderm cells at sites of adhesion, demonstrating a role for ARHGAP29 in periderm integrity and oral epithelial organization during craniofacial development. |
CRISPR/knock-in mouse model (K326X allele), coronal sectioning, immunofluorescence (keratin 6, keratin 17, p63, Arhgap29), embryo harvest and genotyping |
Journal of dental research |
Medium |
28817352
|
| 2017 |
miR-1291 negatively regulates ArhGAP29 expression; in an intrauterine adhesion mouse model, miR-1291 inhibition increased ArhGAP29 and decreased RhoA/ROCK1 activity, ameliorating endometrial fibrosis and reducing EMT markers, placing ArhGAP29 downstream of miR-1291 in the RhoA/ROCK1–EMT pathway. |
miR-1291 antagomir injection, western blot and RT-qPCR (ArhGAP29, RhoA, ROCK1, EMT markers), immunofluorescence, histological staining (H&E, Masson's trichrome) |
Molecular medicine reports |
Medium |
28849001
|
| 2018 |
Afadin binds ArhGAP29 and co-localizes with it at the leading edge of migrating endothelial cells. Both the afadin–ArhGAP29 interaction and the RhoGAP domain of ArhGAP29 are required for proper lamellipodia/ruffle formation and VEGF-induced migration; afadin knockdown increases Rho-associated kinase activity through loss of ArhGAP29 function. |
Co-IP (afadin–ArhGAP29), immunofluorescence co-localization, siRNA knockdown (afadin, ArhGAP29), ROCK activity assay, rescue with ArhGAP29 deletion/point mutants, network formation and migration assay, ROCK inhibitor (Y-27632, fasudil) rescue |
Arteriosclerosis, thrombosis, and vascular biology |
High |
29599137
|
| 2020 |
ARHGAP29 knockdown in breast cancer cells with mesenchymal transformation reduces invasion by decreasing RhoA inhibition and increasing stress fiber formation; reduced ARHGAP29 expression is accompanied by reduced AKT1 protein levels but unchanged ratio of active pAKT1 to total AKT1. |
siRNA knockdown, invasion assay, F-actin staining, western blot (RhoA, AKT1, pAKT1), interaction analysis |
Cells |
Medium |
33291460
|
| 2023 |
In podocytes, YAP/TAZ transcriptionally regulates ARHGAP29 expression (downstream of EPB41L5/Yurt-dependent mechanotransduction); ARHGAP29 knockdown causes increased RhoA activation, defective lamellipodia formation, and increased maturation of integrin adhesion complexes, establishing a YAP/TAZ–ARHGAP29–RhoA signaling axis in podocyte protrusion regulation. |
EPB41L5 KO podocytes, TEADi pharmacological inhibition, transcriptomic/proteomic analysis, siRNA knockdown of ARHGAP29, RhoA activation assay, immunofluorescence (lamellipodia, integrin adhesions), ChIP-seq analysis |
Cells |
Medium |
37443829
|
| 2023 |
TBX21 directly binds the ARHGAP29 promoter to transcriptionally upregulate ARHGAP29; ARHGAP29 in turn inhibits RSK and GSK3β phosphorylation, suppressing colorectal cancer cell proliferation and promoting apoptosis. Knockdown of ARHGAP29 abolishes TBX21-mediated proliferation suppression and kinase inhibition. |
RNA-seq (TBX21 target identification), ChIP (TBX21 binding to ARHGAP29 promoter), phospho-kinase array, siRNA knockdown (ARHGAP29), cell proliferation/apoptosis assays, xenograft mouse model |
Cellular oncology |
Medium |
37067748
|
| 2023 |
ARHGAP29 knockdown in keratinocytes increases filamentous actin (stress fibers), phospho-myosin regulatory light chain (contractility), cell area, and population doubling time, and delays scratch wound closure in single-cell and collective migration; these delays are rescued by ARHGAP29 add-back or by ROCK inhibition, demonstrating that ARHGAP29 controls keratinocyte morphology, proliferation, and migration via the RhoA–ROCK pathway. |
CRISPR/Cas9 and shRNA knockdown, phalloidin staining (F-actin), western blot (phospho-myosin light chain), scratch wound/live-cell migration assay, ROCK inhibitor rescue, ARHGAP29 re-expression rescue |
bioRxivpreprint |
Medium |
36778214
|
| 2024 |
ARHGAP29 knockdown in keratinocytes increases filamentous actin, phospho-myosin regulatory light chain, cell area, and population doubling time, and delays scratch wound closure; these defects are rescued by ARHGAP29 re-expression or ROCK inhibition. In vivo, Arhgap29 heterozygotes or keratinocyte-specific knockouts show on-time wound healing, demonstrating that ARHGAP29 is required for keratinocyte biology in vitro but dispensable for in vivo wound healing. |
ARHGAP29 knockdown cell lines, F-actin staining, phospho-myosin light chain western blot, scratch wound assay, ROCK inhibitor rescue, ARHGAP29 rescue, Arhgap29 conditional KO mouse (keratinocyte-specific), in vivo wound healing assay |
Developmental dynamics |
Medium |
39560169
|
| 2023 |
EHMT2 epigenetically suppresses ARHGAP29 transcription in a methyltransferase-dependent manner in GNAQ/11-mutant uveal melanoma cells, leading to elevated RhoA activity; rescue of constitutively active RhoA in EHMT2-depleted cells restores oncogenic phenotypes, placing EHMT2 upstream of ARHGAP29 in a RhoA-dependent oncogenic pathway. |
ChIP-seq (EHMT2 binding at ARHGAP29 locus), siRNA/pharmacological EHMT2 inhibition, RhoA activity assay, constitutively active RhoA rescue, xenograft in vivo model |
Acta pharmaceutica Sinica. B |
Medium |
38486999
|
| 2025 |
Computational structural modeling of the PARG1 (ARHGAP29) RhoGAP domain shows that the C1-linker region N-terminal to the GAP domain is required for RhoA substrate recognition: docking and molecular dynamics simulations identify specific interface residues (catalytic loop, α4 and α9–10 helices of the GAP domain) mediating stable RhoA binding, and disease-associated missense mutations (T622M, I845V) disorganize or reduce this interface. |
Computational docking (HDOCK), molecular dynamics simulation, structural modeling of WT and mutant PARG1–RhoA complexes |
PloS one |
Low |
40632829
|
| 2025 |
Tissue-specific (ectodermal) deletion of Arhgap29 in mice causes a delay in palatal shelf fusion at E14.5 and significantly penetrant cleft palate at E18.5; loss of Arhgap29 in palatal epithelium increases cell area and upregulates α-smooth muscle actin and phospho-myosin regulatory light chain, implicating increased cell contractility as a driver of the cleft palate phenotype. |
Conditional KO mouse (ectodermal and K14-Cre), histological analysis, immunofluorescence (α-SMA, phospho-MRLC), embryo staging and phenotyping |
bioRxivpreprint |
Medium |
40161602
|
| 2025 |
In glioma cells, ARHGAP29 regulates transitional morphological states via Src kinase signaling, and GSK-3 inhibition coupled with β-catenin translocation alters ARHGAP29 transcription; silencing ARHGAP29 causes morphological changes consistent with phenotype switching. |
siRNA knockdown, western blot (N-cadherin, GSK-3, β-catenin), morphological analysis, Src kinase signaling assays |
Cell reports |
Low |
40053455
|
| 2012 |
Arhgap29 expression in murine embryos is enriched in craniofacial structures and is reduced in mice deficient for Irf6, placing ARHGAP29 downstream of the IRF6 gene regulatory network and linking the IRF6 pathway to Rho signaling via ARHGAP29. |
In situ hybridization (murine embryos), comparison of Arhgap29 expression in Irf6-deficient vs. wild-type mice |
Birth defects research. Part A, Clinical and molecular teratology |
Medium |
23008150
|
| 2025 |
Global knockout of Arhgap29 in mice causes cleft palate with additional craniofacial and systemic skeletal abnormalities including delayed Meckel's cartilage fusion, widened cranial sutures, reduced bone quality, and digit defects; Arhgap29 is expressed in both osteoblasts and osteoclasts, and its loss impairs osteogenesis in vitro (calvarial cells) and disrupts calcium and MAPK signaling pathways. |
Arhgap29 global KO mouse, micro-CT, histological analysis, transcriptomics, spatial transcriptomics, immunohistochemistry (osteoblast/osteoclast markers), in vitro osteogenesis assay (calvarial cells) |
International journal of molecular sciences |
Medium |
40429791
|