{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\nBeta1‐syntrophin (SNTB1) functions as an adaptor protein that modulates the cellular distribution and activity of key membrane transporters. In one study, SNTB1 was shown to interact via a class‐I PDZ binding motif with the C terminus of the ATP‐binding cassette transporter ABCA1. This interaction was critical for promoting the proper cell‐surface localization of ABCA1 and stimulating cholesterol efflux to apolipoprotein A‐I, highlighting SNTB1’s role in lipid metabolism and membrane protein regulation."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nIn addition to its biochemical role, genetic association studies have implicated SNTB1 in various complex human traits. Several genome‐wide and candidate gene investigations have identified single-nucleotide polymorphisms and risk haplotypes in or near SNTB1 that are associated with increased susceptibility to high myopia in Chinese populations."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "2", "end_ref": "5"}]}, {"type": "t", "text": " Moreover, SNTB1 has been linked to psychological endophenotypes; a separate study demonstrated that a specific SNTB1 single-nucleotide polymorphism was significantly associated with negative cognitive patterns, such as interpersonal threat perceptions, which may contribute to vulnerability to depression and anxiety."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "6"}]}, {"type": "t", "text": " An additional investigation in an oral cancer cohort also examined SNTB1 among other candidate genes, emphasizing the broader effort to elucidate the genetic factors underlying disease susceptibility."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "7"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nBeyond its roles in membrane trafficking and genetic associations with ocular and psychiatric traits, SNTB1 appears to contribute to tumor progression. In colorectal cancer, SNTB1 was found to be markedly upregulated, and its knockdown led to a significant suppression of cancer cell proliferation, colony formation, migration, invasion, and epithelial–mesenchymal transition. Mechanistically, SNTB1 was shown to positively regulate the expression of YAP1 and, in turn, modulate key components of the Wnt/β‐catenin/MYC signaling cascade. These findings suggest that SNTB1 may act as an oncogene by facilitating aggressive tumor behavior and metastasis."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "8"}]}, {"type": "t", "text": "\n"}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Kei-ichiro Okuhira, Michael L Fitzgerald, David A Sarracino, et al. 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