SATB2 (Special AT-rich sequence-binding protein 2) is a nuclear matrix protein that influences craniofacial formation mechanisms, such as jaw and palate development, and is part of a transcriptional network regulating skeletal development and osteoblast differentiation. Highly expressed in adult and fetal brain, SATB2 contains two CUT DNA-binding domains and one homeobox domain and is closely related to SATB1, a transcriptional repressor. SATB2 is thought to bind to matrix-attachment regions (MARs) and regulate MAR-dependent transcription of various genes, including HoxA2 and ATF4 (CREB-2), involved in skeletal development. Functioning as both a transcriptional activator and repressor, SATB2 can also act as a protein scaffold that can enhance the activity of other DNA-binding proteins. Defects in the gene encoding SATB2 are the cause of cleft palate manifested in conjunction with severe mental retardation.
Background References
1. Gu W et al. SATB2 preserves colon stem cell identity and mediates ileum-colon conversion via enhancer remodeling. Cell Stem Cell. 2022 Jan
2. Roy SK et al. SATB2 is a novel biomarker and therapeutic target for cancer. J Cell Mol Med. 2020 Oct
Western blot analysis of SATB2 on different lysates with Guinea pig anti-SATB2 antibody (HA601508) at 1/5,000 dilution.
Lane 1: HepG2 cell lysate (10 µg/Lane) Lane 2: HeLa cell lysate (10 µg/Lane) Lane 3: Mouse brain tissue lysate (20 µg/Lane) Lane 4: Mouse liver tissue lysate (negative) (20 µg/Lane) Lane 5: Rat brain tissue lysate (20 µg/Lane) Lane 6: Rat liver tissue lysate (negative) (20 µg/Lane)
Predicted band size: 83 kDa Observed band size: 83 kDa
Exposure time: 1 minute 50 seconds; ECL: K1801;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (HA601508) at 1/5,000 dilution was used in primary antibody dilution (K1803) at 4℃ overnight. Rabbit anti-Guinea pig IgG H&L - HRP Secondary Antibody (HA1021) at 1/50,000 dilution was used for 1 hour at room temperature.
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