Preparation of phenyl 4-deoxy-α- and β-l-threo-hex-4-enopyranosiduronic acids and determination of the anomeric specificity of the Δ4,5-glycosiduronase induced from flavobacterium heparinum with heparin and chondroitin sulfate
作者:Noboru Ototani、Zensaku Yosizawa
DOI:10.1016/s0008-6215(00)90003-x
日期:1987.1
2-acetamido-2-deoxy-4-O-(4-deoxy-α- l -threo-hex-4-enopyranosyluronic acid)- d -glucose and 2-acetamido-2-deoxy-3-O-(4-deoxy-α- l -threo-hex-4-enopyranosyluronic acid)- d -galactose, respectively. It was concluded that the purified preparation of Δ4,5-glycosiduronase induced with heparin was specific for the (1→4)-α- l -threo-4-enopyranosyluronic acid linkage, whereas that of the Δ4,5-glycosiduronase induced with
摘要为研究肝素和硫酸软骨素诱导的肝黄杆菌产生的Δ4,5-糖苷醛酸酶的异头特异性,化学合成了苯基4-脱氧-α-和β-1-苏式-hex-4-异吡喃二糖醛酸糖醛酸。纯化的酶。微生物用肝素或硫酸软骨素诱导的纯化酶仅降解不饱和糖醛酸的α-1异构体。还证实了由肝素诱导的和由硫酸软骨素诱导的Δ4,5-糖苷醛酸酶仅水解了2-乙酰氨基-2-脱氧-4-O-(4-脱氧-α-1-苏式-hex-4-enopyranosyluronic酸)-d-葡萄糖和2-乙酰氨基-2-脱氧-3-O-(4-脱氧-α-1-苏-hex-4-烯吡喃糖基糖醛酸)-d-半乳糖。结论是纯化的Δ4制剂,