UDP-N-acetylgalactosamine → N-Acetyl-D-Galactosamine

HRID 1091218

반응식

HRID 1091218 반응식
[CH3:1][C:2]([NH:4][C@H:5]1[C@@H:10]([O:11]P(OP(OC[C@H]2O[C@@H](N3C(=O)NC(=O)C=C3)[C@H](O)[C@@H]2O)(O)=O)(O)=O)[O:9][C@H:8]([CH2:36][OH:37])[C@H:7]([OH:38])[C@@H:6]1[OH:39])=[O:3].C1C(=O)NC(=O)N([C@@H]2O[C@H](COP(OP(O[C@H]3O[C@H](C([O-])=O)[C@@H](O)[C@H](O)[C@H]3O)([O-])=O)([O-])=O)[C@@H](O)[C@H]2O)C=1.[Na+].[Na+].[Na+]>O>[OH:11][CH:10]1[O:9][C@H:8]([CH2:36][OH:37])[C@H:7]([OH:38])[C@H:6]([OH:39])[C@H:5]1[NH:4][C:2]([CH3:1])=[O:3]

참가 물질

4

반응물 2

HCID 23700UDP-N-acetylgalactosamine2회HCID 16220076UDP-GlcA

생성물 1

HCID 35717N-Acetyl-D-Galactosamine

시약·촉매·용매 1

HCID 962Water용매

실험 절차

A reaction was performed in the same manner as that of (1) mentioned above under conditions of 30° C. and pH 7.2 for 8 hours by using CH6, UDP-GalNAc and UDP-GlcA as substrates and adding the K4CP enzyme. Then, 300 nmole of UDP-GalNAc was added again, and the reaction was performed again at 30° C. for 5 hours. Thermal inactivation was performed for 1 minute in boiling water, the reaction mixture was subjected to ethanol precipitation, and the residue was dissolved again in 200 μl of distilled water. The solution was subjected to gel filtration chromatography in a Superdex Peptide HR10/30 column using 0.2 M ammonium acetate as a developing buffer. The mixture was loaded at a flow rate of 1 ml/minute, and fractions were collected every 1 minute (1 ml). The obtained fractions were lyophilized, and each of the lyophilized fractions was dissolved again in 10 μl of distilled water. The solution was loaded on a small amount of Dowex 50 XW8 (H+ form) gel to obtain a sample for MALDI-TOF-MS.

후처리

  1. additionadding the K4CP enzyme
  2. waitthe reaction was performed again at 30° C. for 5 hours
  3. waitThermal inactivation was performed for 1 minute
  4. customthe reaction mixture was subjected to ethanol precipitation
  5. dissolutionthe residue was dissolved again in 200 μl of distilled water
  6. filtrationThe solution was subjected to gel filtration chromatography in a Superdex Peptide HR10/30 column
  7. customwere collected every 1 minute (1 ml)
  8. dissolutioneach of the lyophilized fractions was dissolved again in 10 μl of distilled water
  9. customto obtain a sample for MALDI-TOF-MS

출처 및 근거

ORD 기록
ord-c67d553bfeb947c3b1f988699f125973
출처 데이터셋
uspto-grants-2012_03
특허 번호
US08129148B2

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