the rs2476601 (r620w, c1858t) polymorphism in ptpn22 gene has been repeatedly reported to be associated with rheumatoid arthritis (ra). the rs 2476601 is widely suggested for predictive testing and risk assessment for ra. the aim of this study was to test the possible association of this snp with ra in iranian population.a total of 872 samples (405 confirmed ra patients and 467 healthy controls...

  Introduction: Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal neoplasms of the gastrointestinal tract. GIST has been shown to over-express c-KIT (CD117), the receptor tyrosine kinase. Imatinib (STI571 or Glivec) is a new type of tyrosine kinase inhibitor that selectively inhibits various tyrosine kinases and has been successfully used to trea...

Background: Tyrosinemia type 1 is an autosomal recessive metabolic disorder, which typically affects liver and kidneys. It is caused by a defect in fumarylacetoacetate hydrolase or fumarylacetoacetase (FAH) enzyme, the final enzyme in the tyrosine degradation pathway. The disease typically manifests as early onset type in early infancy with acute hepatic crisis with hepatomegaly and bleeding te...

Functional foods have emerged as a new approach to improve human health in term of nutraceutical to prevent people from illness rather than cure patients though medical treatment. In Asian society, particularly in Thailand, the utilizations of functional ingredients have been integrated in every parts of ordinary life. In this study, the tyrosine kinase activity of epidermal growth factor recep...

Functional foods have emerged as a new approach to improve human health in term of nutraceutical to prevent people from illness rather than cure patients though medical treatment. In Asian society, particularly in Thailand, the utilizations of functional ingredients have been integrated in every parts of ordinary life. In this study, the tyrosine kinase activity of epidermal growth factor recep...

The growth and differentiation of normal cells are controlled by protein-tyrosine kinases, which serve as receptors for a wide variety external signals. Small protein modules called Src homology 2 (SH2) SH3 domains mediate protein-protein interactions in signaling pathways that triggered tyrosine kinases. SH2 domain, module around 100 amino acids, is present kinase targets within the cell. recr...

Microtubules are dynamic structures regulated by post-translational modifications called a tubulin code. The pictured jester's cap ‘n’ bells resembles disassembling microtubules—a catastrophe—with the illustrating C-terminal tyrosine on tubulins. One is replaced our chemical proteomics probe, which being attached tubulin-tyrosine ligase. juggling amino acids of proteins animate tyrosination cyc...

Liquid-liquid phase separation (LLPS) between tyrosine- and arginine-rich peptides are of biological importance. To understand the interactions proteins in condensed close analogy to complex coacervation, we run multiple umbrella calculations oligomers containing tyrosine (pY) arginine (pR). We find pR-pY complexation be energetically driven. Metadynamics simulations on monomers suggest that th...