Anti-HB9/HLXB9/MNX1 antibody

Supplementary info

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

Activity summary

HB9 also known as HLXB9 and MNX1 plays a mechanical role as a transcription factor in spinal motor neurons and pancreatic islets. With a molecular mass of approximately 40 kDa HB9 expression occurs mainly in the developing central nervous system and pancreas. This protein regulates the expression of genes involved in motor neuron identity and pancreatic beta-cell development. Experts often use HB9 as a marker in developmental biology due to its specific expression pattern in the spinal cord and pancreas.

Biological function summary

HB9 regulates the development and maintenance of motor neurons and pancreatic beta-cells being essential for normal function. It does not form part of a larger protein complex but interacts with various DNA sequences to influence gene transcription. Its activity plays a critical role in ensuring the proper differentiation of cell types during embryonic development.

Pathways

HB9 is integral to both the motor neuron differentiation pathway and pancreas morphogenesis. The Sonic Hedgehog (SHH) signaling pathway interacts with HB9 during the specification of spinal motor neurons. In the pancreas HB9 regulates pathways involving insulin-producing beta-cell formation alongside other transcription factors like PDX1 which closely interact with HB9 functions in pancreas development.

Associated diseases and disorders

HB9 mutations or misregulation connect with conditions such as Currarino syndrome and type 2 diabetes. Currarino syndrome results from mutations affecting HLXB9 function leading to malformations and neuropathologies. In diabetes impaired HB9 function can disturb beta-cell formation or function exacerbating glucose metabolism disorders. HB9's link with PDX1 further highlights its relevance in diabetes as both proteins play roles in pancreatic development and function.