EC Number | Inhibitors | Comment | Organism | Structure |
---|---|---|---|---|
2.4.3.3 | Ca2+ | CaCl2, at 0.004 M: 30% inhibition, at 0.016 M: 60% inhibition | Ovis aries | |
2.4.3.3 | additional information | not inhibited by EDTA; not inhibited by Mg2+; not inhibited by native ovine submaxillary mucin | Ovis aries |
EC Number | KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|---|
2.4.3.3 | 0.57 | - |
CMP-N-acetylneuraminate | 37°C | Ovis aries | |
2.4.3.3 | 1.9 | - |
submaxillary asialo-mucin | ovine, calculated in terms of N-acetylgalactosamine acceptor sites, 37°C | Ovis aries |
EC Number | Metals/Ions | Comment | Organism | Structure |
---|---|---|---|---|
2.4.3.3 | additional information | no divalent metal cation requirement | Ovis aries |
EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
2.4.3.3 | CMP-N-acetylneuraminate + glycano-1,3-(N-acetyl-alpha-D-galactosaminyl)-glycoprotein | Ovis aries | last step in the synthesis of ovine submaxillary mucin, catalyzes the chain-terminating process in oligosaccharide synthesis of glycoproteins, may well be involved in the process of secretion | CMP + glycano-(2,6-alpha-N-acetylneuraminyl)-(N-acetyl-D-galactosaminyl)-glycoprotein | - |
? |
EC Number | Organism | UniProt | Comment | Textmining |
---|---|---|---|---|
2.4.3.3 | Ovis aries | - |
- |
- |
EC Number | Purification (Comment) | Organism |
---|---|---|
2.4.3.3 | partial, 44fold | Ovis aries |
EC Number | Source Tissue | Comment | Organism | Textmining |
---|---|---|---|---|
2.4.3.3 | submaxillary gland | - |
Ovis aries | - |
EC Number | Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|---|
2.4.3.3 | 0.00435 | - |
- |
Ovis aries |
EC Number | Storage Stability | Organism |
---|---|---|
2.4.3.3 | frozen, crude preparation, at least 2 months, stable | Ovis aries |
EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
2.4.3.3 | CMP-N-acetylneuraminate + asialo-fetuin | - |
Ovis aries | CMP + fetuin | - |
? | |
2.4.3.3 | CMP-N-acetylneuraminate + asialo-milk glycopeptide | - |
Ovis aries | CMP + milk glycopeptide | - |
? | |
2.4.3.3 | CMP-N-acetylneuraminate + erythrocyte hemagglutination inhibitor | - |
Ovis aries | ? | - |
? | |
2.4.3.3 | CMP-N-acetylneuraminate + glycano-1,3-(N-acetyl-alpha-D-galactosaminyl)-glycoprotein | last step in the synthesis of ovine submaxillary mucin, catalyzes the chain-terminating process in oligosaccharide synthesis of glycoproteins, may well be involved in the process of secretion | Ovis aries | CMP + glycano-(2,6-alpha-N-acetylneuraminyl)-(N-acetyl-D-galactosaminyl)-glycoprotein | - |
? | |
2.4.3.3 | CMP-N-acetylneuraminate + native fetuin | - |
Ovis aries | ? | - |
? | |
2.4.3.3 | CMP-N-acetylneuraminate + R-1,3-(N-acetyl-alpha-D-galactosaminyl)-glycoprotein | erythrocyte hemagglutination inhibitor, milk glycopeptide | Ovis aries | CMP + R-(2,6-alpha-N-acetylneuraminyl)-(N-acetyl-D-galactosaminyl)-glycoprotein | - |
ir | |
2.4.3.3 | CMP-N-acetylneuraminate + R-1,3-(N-acetyl-alpha-D-galactosaminyl)-glycoprotein | CMP-N-glycolylneuraminate can replace CMP-N-acetylneuraminate | Ovis aries | CMP + R-(2,6-alpha-N-acetylneuraminyl)-(N-acetyl-D-galactosaminyl)-glycoprotein | - |
ir | |
2.4.3.3 | CMP-N-acetylneuraminate + R-1,3-(N-acetyl-alpha-D-galactosaminyl)-glycoprotein | asialo-fetuin | Ovis aries | CMP + R-(2,6-alpha-N-acetylneuraminyl)-(N-acetyl-D-galactosaminyl)-glycoprotein | - |
ir | |
2.4.3.3 | CMP-N-acetylneuraminate + R-1,3-(N-acetyl-alpha-D-galactosaminyl)-glycoprotein | bovine submaxillary asialo-mucin | Ovis aries | CMP + R-(2,6-alpha-N-acetylneuraminyl)-(N-acetyl-D-galactosaminyl)-glycoprotein | - |
ir | |
2.4.3.3 | CMP-N-acetylneuraminate + R-1,3-(N-acetyl-alpha-D-galactosaminyl)-glycoprotein | specific for alpha-N-acetylgalactosamine attached through alpha-glycosidic linkage to threonine or serine in polypeptide chain | Ovis aries | CMP + R-(2,6-alpha-N-acetylneuraminyl)-(N-acetyl-D-galactosaminyl)-glycoprotein | - |
ir | |
2.4.3.3 | CMP-N-acetylneuraminate + R-1,3-(N-acetyl-alpha-D-galactosaminyl)-glycoprotein | porcine submaxillary asialo-mucin | Ovis aries | CMP + R-(2,6-alpha-N-acetylneuraminyl)-(N-acetyl-D-galactosaminyl)-glycoprotein | - |
ir | |
2.4.3.3 | CMP-N-acetylneuraminate + R-1,3-(N-acetyl-alpha-D-galactosaminyl)-glycoprotein | native submaxillary mucin, less effective than asialo-mucin | Ovis aries | CMP + R-(2,6-alpha-N-acetylneuraminyl)-(N-acetyl-D-galactosaminyl)-glycoprotein | - |
ir | |
2.4.3.3 | CMP-N-acetylneuraminate + R-1,3-(N-acetyl-alpha-D-galactosaminyl)-glycoprotein | native fetuin | Ovis aries | CMP + R-(2,6-alpha-N-acetylneuraminyl)-(N-acetyl-D-galactosaminyl)-glycoprotein | - |
ir | |
2.4.3.3 | CMP-N-acetylneuraminate + R-1,3-(N-acetyl-alpha-D-galactosaminyl)-glycoprotein | ovine submaxillary asialo-mucin, with simple O-linked GalNAcalpha-Thr/Ser | Ovis aries | CMP + R-(2,6-alpha-N-acetylneuraminyl)-(N-acetyl-D-galactosaminyl)-glycoprotein | - |
ir | |
2.4.3.3 | CMP-N-acetylneuraminate + submaxillary asialo-mucin | bovine submaxillary asialo-mucin | Ovis aries | CMP + submaxillary mucin | linkage formed is NeuAc(2-6)GalNAcalpha(1-)O-Thr/Ser | ir | |
2.4.3.3 | CMP-N-acetylneuraminate + submaxillary asialo-mucin | porcine submaxillary asialo-mucin | Ovis aries | CMP + submaxillary mucin | linkage formed is NeuAc(2-6)GalNAcalpha(1-)O-Thr/Ser | ir | |
2.4.3.3 | CMP-N-acetylneuraminate + submaxillary asialo-mucin | ovine submaxillary asialo-mucin is the most effective acceptor | Ovis aries | CMP + submaxillary mucin | linkage formed is NeuAc(2-6)GalNAcalpha(1-)O-Thr/Ser | ir | |
2.4.3.3 | CMP-N-glycolylneuraminate + R-1,3-(N-acetyl-alpha-D-galactosaminyl)-glycoprotein | - |
Ovis aries | CMP + R-(2,6-alpha-N-glycolylneuraminyl)-(N-acetyl-D-galactosaminyl)-glycoprotein | - |
? | |
2.4.3.3 | additional information | no acceptors: asialo-collacalia mucoid, asialo-proteose peptone, asialo-prothrombin, asialo-thyroglobulin, asialo-transferrin, asialo-chondromucoprotein fractions from cartilage, human blood group substance A or B, various sugars | Ovis aries | ? | - |
? | |
2.4.3.3 | additional information | no acceptor: lactose | Ovis aries | ? | - |
? |
EC Number | Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|---|
2.4.3.3 | 37 | - |
assay at | Ovis aries |
EC Number | pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|---|
2.4.3.3 | 6 | 6.1 | with cacodylate-acetate buffer | Ovis aries |