منابع مشابه
Comparative biochemistry of keratosulfates.
Keratosulfate was first isolated from bovine cornea in 1953 by Meyer et al. (2) and its repeating unit structure determined to be (1 3 3)P-n-galactopyranosyl-(1 + 4)-2-acetamido-2-deoxy-Po-glucopyranosyl 6-sulfate (3). This compound was later reported present also in human cartilage (4) and in nucleus pulposus (5). u-Glucosamine was characterized as the hydrochloride and n-galactose as the or-m...
متن کامل3 , 6 - Anhydroglucosaminyl Formation in Mucopolysaccharides ( keratosulfates / heparin )
Treatment of keratosulfates with alkali leads to the formation of 3,6-anhydroglucosaminyl groups in high yield. A similar reaction takes place with heparin and heparitin sulfate, though to a lesser extent. The anhydrosugar was isolated and compared with synthetic 3,6-anhydroglucosamine. The isolated compounds were identical in ion exchange chromatography in the amino acid analyzer and on Dowex ...
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although there are studies on pragmatic assessment, to date, literature has been almost silent about native and non-native english raters’ criteria for the assessment of efl learners’ pragmatic performance. focusing on this topic, this study pursued four purposes. the first one was to find criteria for rating the speech acts of apology and refusal in l2 by native and non-native english teachers...
15 صفحه اولAnatomical Variations of Circle of Willis in 57 Human Brains
Purpose: The circle of willis is responsible for blood supply of brain, which may suffer from anatomical variations. These disturbances can lead to aneurysm or even arterial rupture. The purpose of this study was to evaluate the anatomical structure of the cerebral arteries forming the circle of willis in adult cadavers. Also, cerebral versus non- cerebral versus non-cerebral arterial walls wer...
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The aim of this study is to determine the serum copper (Cu) concentration found in Iranian Raeini cashmere goats in different seasonal and climatic conditions. Twenty four male (6 to 18 months old) and 48 female (6 to 18 and 18 to 30 months old) Raeini goats were selected from the station, rural, and nomadic flocks. The average Cu concentrations among the male and female goats were 0.5 ± 0.04 a...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1965
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)97528-9