Primary structure of the asparagine-563-linked carbohydrate chain of an immunoglobulin M from a patient with Waldenstrom's macroglobulinemia. A reinvestigation by 500-MHz H-NMR spectroscopy期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Primary structure of the asparagine-563-linked carbohydrate chain of an immunoglobulin M from a patient with Waldenstrom's macroglobulinemia. A reinvestigation by 500-MHz H-NMR spectroscopy

Authors:	H Van Halbeek L Dorland J F Vliegenthart

Institution:	1. Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261 USA;2. Division of Gastroenterology, University of Texas, Health Science Center at Houston Medical School, Houston, TX 77025 USA

Abstract:	The activity of microsomal cholesterol 7α-hydroxylase is shown to be increased in vitro by ATP, Mg²⁺, and a cytosolic protein fraction. There was a loss of enzyme activity in the presence of E. coli alkaline phosphatase which was proportional to the amount of phosphatase. Much of this loss was recovered upon addition of ATP, Mg²⁺, and a cytosolic protein fraction.

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