Two mass spectrometry methods, high-performance liquid chromatography combined on-line with electrospray ionization mass spectrometry (HPLC-ESI-MS) and electron-capture (EC) dissociation tandem mass spectrometry (MS-MS), were applied for structural analysis of bovine and human osteocalcins. Osteocalcin contains gamma-carboxyglutamic acid (Gla) residues, which bind metal ions, among its amino ac...

The proline-rich gamma-carboxyglutamic acid (Gla) proteins (PRGPs) 1 and 2 are the founding members of a family of vitamin K-dependent single-pass integral membrane proteins characterized by an extracellular amino terminal domain of approximately 45 amino acids that is rich in Gla. The intracellular carboxyl terminal region of these two proteins contains one or two copies of the sequence PPXY, ...

E-cadherin is a cell to cell adhesion molecule which acts as a suppressor of metastasis. This study examined the effect of y-litmlmir acid (GLA), a n-(>polyunsaturated fatty acid, on the expression of E-cadherin in human cancer cells. Western blotting studies demonstrated that treatment of cells with GLA for 24 h increased the expression of E-cadherin in lung, colon, breast, melanoma, and liver...

E-cadherin is a cell to cell adhesion molecule which acts as a suppressor of metastasis. This study examined the effect of y-litmlmir acid (GLA), a n-(>polyunsaturated fatty acid, on the expression of E-cadherin in human cancer cells. Western blotting studies demonstrated that treatment of cells with GLA for 24 h increased the expression of E-cadherin in lung, colon, breast, melanoma, and liver...

While a base substitution in intron 4 of GLA (IVS4+919G>A) that causes aberrant alternative splicing resulting in Fabry disease has been reported, its molecular mechanism remains unclear. Here we reported that upon IVS4+919G>A transversion, H3K36me3 was enriched across the alternatively spliced region. PSIP1, an adapter of H3K36me3, together with Hsp70 and NONO were recruited and formed a compl...

The first symptom arising in many Fabry patients is neuropathic pain due to changes in small myelinated and unmyelinated fibers in the periphery, which is subsequently followed by a loss of sensory perception. Here we studied changes in the peripheral nervous system of Fabry patients and a Fabry mouse model induced by deletion of α-galactosidase A (Gla-/0). The skin innervation of Gla-/0 mice r...

Peth, J. Anthony, Tyson R. Kinnick, Erik B. Youngblood, Hans J. Tritschler, and Erik J. Henriksen. Effects of a unique conjugate of a-lipoic acid and g-linolenic acid on insulin action in obese Zucker rats. Am. J. Physiol. Regulatory Integrative Comp. Physiol. 278: R453–R459, 2000.—The purpose of this study was to assess the individual and interactive effects of the antioxidant a-lipoic acid (L...

Hepatocellular carcinoma (HCC) is the third leading cause of cancer-related mortality worldwide. Current standard practices for treatment of HCC are less than satisfactory because of cancer stem cells (CSCs)-mediated post-surgical recurrence. For this reason, targeting the CSCs or the cancer cells with CSCs-like properties has become a new approach for the treatment of HCC. GLA exhibits anti-tu...

The gamma-carboxyglutamic acid (Gla) domain of blood coagulation factors is responsible for Ca2+-dependent phospholipid membrane binding. Factor X-binding protein (X-bp), an anticoagulant protein from snake venom, specifically binds to the Gla domain of factor X. The crystal structure of X-bp in complex with the Gla domain peptide of factor X at 2.3-A resolution showed that the anticoagulation ...