{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\nPOGZ is a multifunctional chromatin regulator that orchestrates proper mitotic progression and maintains genomic stability. It binds heterochromatin protein 1α (HP1α) via a unique zinc finger–like motif and competes with classical PxVxL proteins to destabilize HP1α–chromatin interactions, thereby enabling the dissociation of HP1α from mitotic chromosome arms and coordinating the activation of Aurora B kinase. In addition, POGZ engages in a critical interaction through its DDE domain with LEDGF/p75, a key epigenetic reader, in a manner that overlaps with HIV-1 integrase binding, underscoring its broader role in mediating the functions of DDE domain–containing proteins in chromatin biology and mitotic control."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "1", "end_ref": "5"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nIn the developing nervous system, POGZ plays an essential role in regulating chromatin accessibility at euchromatic loci and gene regulatory elements, thereby promoting the transcription of clustered synaptic genes and other neurodevelopmental regulators. Disruptive de novo and inherited mutations in POGZ have been linked to a broad spectrum of neurodevelopmental disorders—including intellectual disability, autism spectrum disorder, and White‐Sutton syndrome—with clinical hallmarks such as speech and language delays, motor coordination impairments, and distinctive facial features. Moreover, POGZ directly modulates the oxytocin system by binding to the promoter of the oxytocin receptor (OXTR), an effect that contributes to social behavioral deficits observed in mouse models carrying patient‐derived mutations."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "6", "end_ref": "17"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nBeyond its developmental functions, aberrant expression or mutation of POGZ has broader implications. In osteosarcoma, for example, high levels of POGZ are associated with deregulation of cell cycle pathways and poorer prognoses, suggesting its potential as a prognostic biomarker and therapeutic target in malignancy. In addition, emerging evidence links POGZ dysfunction to sleep disturbances; disruption of its regulatory network may interfere with circadian rhythm, tau protein binding, and ATPase activator activity, which altogether contribute to the sleep phenotypes observed in affected individuals."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "18"}]}, {"type": "t", "text": "\n"}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Koen Bartholomeeusen, Frauke Christ, Jelle Hendrix, et al. 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"}, {"type": "b", "children": [{"type": "t", "text": "Multiple cellular proteins interact with LEDGF/p75 through a conserved unstructured consensus motif."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Nat Commun (2015)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1038/ncomms8968"}], "href": "https://doi.org/10.1038/ncomms8968"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "26245978"}], "href": "https://pubmed.ncbi.nlm.nih.gov/26245978"}]}, {"type": "r", "ref": 4, "children": [{"type": "t", "text": "John Heath, Estelle Simo Cheyou, Steven Findlay, et al. 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"}, {"type": "b", "children": [{"type": "t", "text": "Chromodomain on Y-like 2 (CDYL2) implicated in mitosis and genome stability regulation via interaction with CHAMP1 and POGZ."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Cell Mol Life Sci (2023)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1007/s00018-022-04659-7"}], "href": "https://doi.org/10.1007/s00018-022-04659-7"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "36658409"}], "href": "https://pubmed.ncbi.nlm.nih.gov/36658409"}]}, {"type": "r", "ref": 6, "children": [{"type": "t", "text": "Janson White, Christine R Beck, Tamar Harel, et al. 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