{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\n Among the abstracts provided, only one explicitly mentions the gene "}, {"type": "b", "children": [{"type": "t", "text": "C4orf51"}]}, {"type": "t", "text": " (5). In the reported case of a small de novo deletion at 4q31.21–q31.22, the loss of a cluster of 7 genes—including C4orf51—was associated with developmental delay, craniofacial dysmorphism, digital anomalies, and cardiac/skeletal defects (see."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": " Although the precise biological function of C4orf51 is not detailed in the record, its inclusion in the deletion region suggests that it may contribute to normal developmental processes. Disruption or haploinsufficiency of C4orf51, along with other co‐deleted genes, may interfere with pathways critical for growth and neurodevelopment, thereby potentially accounting for some of the clinical features observed in the 4q deletion syndrome.\n "}]}, {"type": "t", "text": "\n "}, {"type": "p", "children": [{"type": "t", "text": "\n It is notable that while the other abstracts address important aspects of stem cell differentiation (1), cancer immunotherapy target discovery (2), epigenetic alterations in breast cancer (3), and regulatory processes in patient‐derived tumor transcriptomes (4), none provide functional insights into C4orf51. Thus, based on the available data (5), further research is necessary to elucidate the specific role of C4orf51 in normal development and its contribution to the phenotypes linked to its deletion.\n "}]}, {"type": "t", "text": "\n "}, {"type": "p", "children": [{"type": "t", "text": "\n References:."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "2", "end_ref": "5"}, {"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": ""}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Angeliki-Maria Vlaikou, Emmanouil Manolakos, Dimitrios Noutsopoulos, et al. 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