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1.One compound is known as arginine. Another compound is a new substance which is determined as 1′ N α arginine 1′ deoxy 4′ O (a D glucopyranosyl) D fructose (AFG) through the analysis of 13 C NMR, 1H NMR, IR and UV spectra.
其中一个为已知化合物—精氨酸(1),另一个为新化合物—精氨酸双糖甙2),根据红外、紫外、质谱、氢谱及碳谱解析,推定其为1′?(精氨酸?Nα基)?1′?去氧?4′?O?(α?D?吡喃葡萄糖基)?D?果糖收藏指正
2.Compound Ⅱis a new amino acid derivative. Its structure was characterized as 1-(arginine-N a-yl)-1-deoxy-4-O-(α-D-glucopyranosyl)-D-fructose, named AFG(argininyl- fructosyl-glucose,on the basis of chemical evidence and spectral analysis and semisynthesized from maltosewith arginine.The identification of compound Ⅲ,Ⅳ and V is in progress.
另一个为新化合物──精氨酸双糖甙(Ⅱ),根据红外、紫外、质谱、氢谱及碳谱等光谱解析,推定为1-(精氨酸-Na基)-1-去氧-4-O-(α-D-吡喃葡萄糖基)-D-果糖。 并用半合成法进一步确证其结构。收藏指正
3.FBA catalyzes the reversible reaction that dihydroxyacetone phosphate and D-glyceraldehydes-3-phosphate are utilized to form fructose-6-phosphate. There are two branch points in Calvin cycle.
而FBA则可逆地催化这两个三碳糖缩化形成为六碳糖——果糖-6-磷酸(FBP),是Calvin循环中固定CO_2后的第一个催化3C化合物转化为6C化合物的酶。收藏指正
4.CSP 1 and CSP 2 showed positive specific rotation: 18 D =+218(c=0.1,H 2O)for CSP 1, 18 D =+10,33(c=0.1,H 2O)for CSP 2.CSP 1 contained galatose and xylose,CSP 2 contained glucose,rahmnose and fructose.
凝胶过滤法测得CSP—1和CSP—2的分子量分别是400KD和18KD。 组成分析表明CSP—1含半乳糖和木糖,CSP—2含葡萄糖、鼠李糖和果糖收藏指正
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