{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,4]],"date-time":"2026-07-04T08:17:30Z","timestamp":1783153050451,"version":"3.54.6"},"reference-count":37,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2026,7,4]],"date-time":"2026-07-04T00:00:00Z","timestamp":1783123200000},"content-version":"vor","delay-in-days":184,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Human Mutation"],"published-print":{"date-parts":[[2026,1]]},"abstract":"<jats:p>\n                    Limb\u2010girdle muscular dystrophies (LGMDs) are disorders with an important clinical heterogeneity, usually involving proximal limb muscles. One subtype, LGMD R16 (LGMD 2P), is an autosomal recessive condition caused by pathogenic variants in\n                    <jats:italic>DAG1<\/jats:italic>\n                    , with clinical presentations ranging from mild to extremely severe forms.\n                    <jats:italic>DAG1<\/jats:italic>\n                    is responsible for producing dystroglycan, an essential complex in the muscular protein network. Following translation, dystroglycan is cleaved into alpha\u2010dystroglycan, which undergoes glycosylation and acts as a sarcolemmal receptor for extracellular proteins, and beta\u2010dystroglycan, which connects to dystrophin. In recent years, heterozygous nonsense or frameshift\n                    <jats:italic>DAG1<\/jats:italic>\n                    variants have been linked with asymptomatic hyperCKemia (increased serum creatine kinase levels) or mild muscular phenotypes characterized by fatigability and myalgia. Here, we describe a Romanian family comprising four affected individuals (one father and three sons) carrying the heterozygous missense\n                    <jats:italic>DAG1<\/jats:italic>\n                    variant NM_004393.6:c.887G&gt;A, NP_004384.5:p.(Gly296Asp) and showing a mild\u2013moderate muscular phenotype similar to previous cases of\n                    <jats:italic>DAG1<\/jats:italic>\n                    haploinsufficiency. Three of the affected individuals exhibit myopathic changes in muscle biopsies (increased fiber size variability, internalized nuclei, and regenerating fibers), while two demonstrate reduced alpha\u2010dystroglycan glycosylation in muscle tissue. Atomic force microscopy findings in myoblasts from one patient showed a significantly lower stiffness compared to controls. These findings align with prior reports and further support the pathogenicity of this variant.\n                  <\/jats:p>","DOI":"10.1155\/humu\/7451586","type":"journal-article","created":{"date-parts":[[2026,7,4]],"date-time":"2026-07-04T07:37:09Z","timestamp":1783150629000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Autosomal Dominant Missense\n                    <i>DAG1<\/i>\n                    Variant Linked to Mild\u2013Moderate LGMD 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