SUN1 Antibody / Sad1/UNC-84 domain-containing protein 1, 100 ug

SUN1 antibody detects Sad1/UNC-84 domain-containing protein 1, encoded by the SUN1 gene on chromosome 7p22.3. SUN1 antibody is widely used in nuclear envelope, cytoskeletal, and cell structure research. SUN1 is an inner nuclear membrane protein that interacts with KASH domain proteins at the outer nuclear membrane to form the LINC (linker of nucleoskeleton and cytoskeleton) complex. This complex physically connects the nuclear interior with the cytoskeleton, enabling nuclear positioning, mechanotransduction, and chromosome dynamics.

Structurally, SUN1 is a ~90 kDa type II transmembrane protein with a conserved SUN domain that extends into the perinuclear space. It anchors to the nuclear lamina and interacts with chromatin-associated proteins inside the nucleus. SUN1 can heterodimerize with SUN2 to form diverse LINC complexes. Expression is ubiquitous, with enrichment in proliferating and differentiating cells.

Functionally, SUN1 regulates nuclear migration, anchorage, and mechanotransduction. It is essential for meiotic chromosome pairing, telomere tethering, and centrosome-nucleus coupling. SUN1 also contributes to DNA repair and genomic stability. Researchers use SUN1 antibody to study nuclear organization, mechanobiology, and chromosome dynamics.

Clinically, SUN1 mutations and dysregulation are associated with laminopathies, muscular dystrophies, and neurodevelopmental disorders. Disruption of the LINC complex impairs nuclear positioning and mechanosignaling, leading to disease. SUN1 also contributes to cancer progression by altering nuclear morphology and chromatin organization. NSJ Bioreagents provides SUN1 antibody for research in nuclear architecture, mechanobiology, and disease mechanisms.

Experimentally, SUN1 antibody is used in western blotting to detect the ~90 kDa protein, in immunofluorescence microscopy to visualize nuclear envelope localization, and in immunohistochemistry to study tissue-specific expression. Co-immunoprecipitation with SUN1 antibody identifies binding partners within the LINC complex.