Recombinant Human Keratocan/KTN protein (GST tag N-Terminus)

Supplementary information

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

Keratocan also known as Kera or Keratan sulfate proteoglycan plays a structural role in connective tissues. This small leucine-rich proteoglycan (SLRP) has an approximate mass of 37 kDa. It is expressed mainly in the cornea but also found in cartilage and other connective tissues. The arrangement of keratocan contributes significantly to the transparency and biomechanical properties of the cornea interacting with collagen fibrils.

Biological function summary

Within the extracellular matrix keratocan maintains corneal clarity and supports tissue organization. It is part of the corneal proteoglycan complex which includes lumican and decorin. These SLRPs collectively regulate collagen fibril assembly and spacing ensuring proper light refraction through the cornea. Keratocan’s presence is also indicative of its role in corneal morphogenesis and repair assisting in wound healing processes.

Pathways

Keratocan interacts with the TGF-β and BMP signaling pathways contributing to matrix assembly and cellular growth. These pathways involve other proteins like fibromodulin and biglycan sharing functions in collagen assembly and tissue repair. TGF-β signaling especially modulates the synthesis of extracellular matrix components during tissue development and healing where keratocan's role becomes important for maintaining structure.

Keratocan relates to corneal dystrophies such as cornea plana and macular dystrophy. Mutations or dysregulation in keratocan can lead to these conditions characterized by opacity and poor vision. During these disease states keratocan interacts with proteins like lumican and collagen type I highlighting the interdependency of these proteins in maintaining corneal integrity. Understanding keratocan's mechanism and interactions helps in developing therapeutic strategies targeting these corneal abnormalities.