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Página 1 desde 128 resultados
Reduced gland mucin-specific O-glycan in gastric atrophy: A possible risk factor for differentiated-type adenocarcinoma of the stomach.
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OBJECTIVE
O-glycans exhibiting terminal α1,4-linked N-acetylglucosamine (αGlcNAc) are attached to MUC6 in gastric gland mucins and serve as a tumor suppressor for gastric adenocarcinoma. Gastric atrophy is associated with risk for gastric cancer. However, the significance of αGlcNAc expression in
Alteration of N-glycans related to articular cartilage deterioration after anterior cruciate ligament transection in rabbits.
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Osteoarthritis (OA) is the most common of all joint diseases, but the molecular basis of its onset and progression is controversial. Several studies have shown that modifications of N-glycans contribute to pathogenesis. However, little attention has been paid to N-glycan modifications seen
Is canine hepatocerebellar degeneration syndrome an animal model for carbohydrate-deficient glycoprotein syndrome in humans? An example of sequencing glycoprotein glycans with mass spectrometry.
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The clinical symptoms and morphologic features of canine hepatocerebellar degeneration syndrome (CHD) bear striking resemblance to those of human carbohydrate-deficient glycoprotein syndrome (CDGS). The characteristic biochemical and molecular features of human CDGS lie in the truncated carbohydrate
Eyes shut homolog (EYS) interacts with matriglycan of O-mannosyl glycans whose deficiency results in EYS mislocalization and degeneration of photoreceptors.
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Mutations in eyes shut homolog (EYS), a secreted extracellular matrix protein containing multiple laminin globular (LG) domains, and in protein O-mannose β1, 2-N-acetylglucosaminyl transferase 1 (POMGnT1), an enzyme involved in O-mannosyl glycosylation, cause retinitis pigmentosa (RP), RP25 and
S-opsin protein is incompletely modified during N-glycan processing in Rpe65(-/-) mice.
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Retinal pigment epithelium-specific protein 65 kDa (RPE65) is a key enzyme for the visual cycle in the eye. Rpe65(-/-) mice lack 11-cis-retinal, and show early cone degeneration and mislocalization of cone opsins. The present study investigated whether abnormal modification of cone opsins at the
Site-specific and Quantitative N-glycan Heterogeneity Analysis of the Charge Isomers of an Anti-VEGF Recombinant Fusion Protein by High-resolution 2-dimensional Gel Electrophoresis and Mass Spectrometry.
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Glycan modification prompts important concerns about the quality control of biopharmaceutical production. Conbercept is a multi-glycosylated recombinant fusion protein drug approved for the treatment of age-related macular degeneration (AMD). With 14 N-glycosites in the molecule and 7 N-glycosites
Subgroup differences in 'brain-type' transferrin and α-synuclein in Parkinson's disease and multiple system atrophy.
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Two transferrin (Tf) glycan-isoforms were previously found in cerebrospinal fluid (CSF); one appears to be derived from serum (Tf-2) and the other from choroid plexus, a CSF-producing tissue (Tf-1). To analyse metabolic differences associated with the two isoforms, their ratio (Tf-2/Tf-1) was
Specific anti-glycan antibodies are sustained during and after parasite clearance in Schistosoma japonicum-infected rhesus macaques.
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Human immunity to Schistosoma infection requires many years of exposure, and multiple infections and treatments to develop. Unlike humans, rhesus macaques clear an established schistosome infection naturally at the same time acquiring immunity towards re-infection. In macaques, schistosome egg
The N-glycan processing enzymes alpha-mannosidase and beta-D-N-acetylhexosaminidase are involved in ripening-associated softening in the non-climacteric fruits of capsicum.
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Excessive softening of fruits during the ripening process leads to deterioration. This is of significant global importance as softening-mediated deterioration leads to huge postharvest losses. N-glycan processing enzymes are reported to play an important role during climacteric fruit softening:
Potent antiscrapie activities of degenerate phosphorothioate oligonucleotides.
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Although transmissible spongiform encephalopathies (TSEs) are incurable, a key therapeutic approach is prevention of conversion of the normal, protease-sensitive form of prion protein (PrP-sen) to the disease-specific protease-resistant form of prion protein (PrP-res). Here degenerate
Possible role of sialylation of retinal protein glycans in the regulation of electroretinogram response in mice.
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OBJECTIVE
To evaluate if the nature, degree and extent of Siaα2-3-/Siaα2-6-sialylation of retinal protein glycans plays a possible role in the development and regulation of electroretinogram response (ERG) in mice.
METHODS
Proteins extracted, from retinae of postnatal day 2 (PN2), PN7, and PN14 wild
Myo-Glyco disease Biology: Genetic Myopathies Caused by Abnormal Glycan Synthesis and Degradation.
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Glycosylation is a major form of post-translational modification and plays various important roles in organisms by modifying proteins or lipids, which generates functional variability and can increase their stability. Because of the physiological importance of glycosylation, defects in genes
GlcNAc6ST-1 regulates sulfation of N-glycans and myelination in the peripheral nervous system.
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Highly specialized glial cells wrap axons with a multilayered myelin membrane in vertebrates. Myelin serves essential roles in the functioning of the nervous system. Axonal degeneration is the major cause of permanent neurological disability in primary myelin diseases. Many glycoproteins have been
Dispersing the crowd: Adopting 13 C direct detection for glycans
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As a direct consequence of technological advancements, the interest in direct detection of low-gamma/low-sensitivity heteronuclei for NMR experiments has been revived. Until recently, experimental development of 13C/15N detected experiments has been focused on protein NMR. In
Differential binding to glycotopes among the layers of three mammalian retinal neurons by man-containing N-linked glycan, T(alpha) (Galbeta1-3GalNAcalpha1-), Tn (GalNAcalpha1-Ser/Thr) and I (beta)/II (beta) (Galbeta1-3/4GlcNAcbeta-) reactive lectins.
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Carbohydrate structures between retinal neurons and retinal pigment epithelium (RPE) play an important role in maintaining the integrity of retinal adhesion to underlying RPE, and in retinal detachment pathogenesis. Since relevant knowledge is still in the primary stage, glycotopes on the adult
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