Saposin B is a small non-enzymatic glycoprotein required for the breakdown of cerebroside sulphates (sulphatides) in lysosomes. Saposin B contains three intramolecular disulphide bridges, exists as a dimer and is remarkably heat, protease, and pH sta ...
Saposin B is a small non-enzymatic glycoprotein required for the breakdown of cerebroside sulphates (sulphatides) in lysosomes. Saposin B contains three intramolecular disulphide bridges, exists as a dimer and is remarkably heat, protease, and pH stable. The crystal structure of human saposin B reveals an unusual shell-like dimer consisting of a monolayer of alpha-helices enclosing a large hydrophobic cavity [1,2]. It is one of the most studied members of the saposin protein family and it is involved in the hydrolysis of glycolipids and glycerolipids. SapB is unique in the saposin family in that it facilitates degradation by interacting with the substrate, not the enzymes [3].
Fibroblast growth factor receptor 3 (FGFR3) is a receptor tyrosine kinase that transduces biochemical signals by lateral dimerization in the plasma membrane, followed by receptor autophosphorylation and stimulation of downstream signaling cascades. T ...
Fibroblast growth factor receptor 3 (FGFR3) is a receptor tyrosine kinase that transduces biochemical signals by lateral dimerization in the plasma membrane, followed by receptor autophosphorylation and stimulation of downstream signaling cascades. This entry represents the transmembrane helix of FGFR3 which is involved in dimerization, forming a symmetric left-handed dimer. Mutations in this segment are associated with pathogenesis of cancers and growth disorders [1].
