Recombinant Human Sp7 / Osterix protein (GST tag N-Terminus)

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

Sp7 also known as Osterix is a transcription factor critical for bone formation. As a protein it has a mass of approximately 45 kDa. Sp7/Osterix is mainly expressed in osteoblasts cells responsible for new bone synthesis. The protein binds to specific DNA sequences regulating gene expression necessary for osteoblast differentiation and activity.

Biological function summary

Sp7 or Osterix functions as an important regulator in the development of the skeletal system. It operates as part of transcriptional regulation but does not form a complex with other proteins. By activating genes involved in bone matrix composition Sp7 drives the differentiation of precursor cells into mature osteoblasts which is an essential process for normal bone growth and maintenance.

Pathways

Sp7 works within the ossification pathway which is essential for bone development and regeneration. It closely interacts with Runx2 another transcription factor that plays a significant role in the regulation of osteoblast differentiation. The activity of Sp7 in this pathway ensures proper expression of bone-specific proteins including those encoded by the Spp1 and Calm genes which contribute to mineralization and calcium homeostasis.

Mutations or dysregulation of Sp7/Osterix impact conditions like osteogenesis imperfecta and osteoporosis. In these diseases impaired or excessive bone formation can occur affecting skeletal integrity. The protein's functional relationship with Runx2 is important in these contexts as both proteins together determine the balance between bone formation and resorption which when disrupted leads to pathological skeletal changes.