Activating Compound | Comment | Organism | Structure |
---|---|---|---|
Triton X-100 | activation | Homo sapiens |
General Stability | Organism |
---|---|
freeze-thawing, crude preparation, stable to | Homo sapiens |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
CDP | - |
Homo sapiens | |
CMP | competitive, less effective than CDP or CTP | Homo sapiens | |
CTP | - |
Homo sapiens | |
Cu2+ | weak | Homo sapiens | |
EDTA | weak | Homo sapiens | |
Mn2+ | above 10 mM | Homo sapiens | |
additional information | no inhibition by N-ethylmaleimide | Homo sapiens | |
UTP | 0.25 mM, inhibition decreases at higher concentrations | Homo sapiens |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.0064 | - |
asialo-fetuin | expressed as concentration of terminal galactosyl residues | Homo sapiens | |
0.0205 | - |
CMP-N-acetylneuraminate | - |
Homo sapiens |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
additional information | - |
Homo sapiens |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Homo sapiens | - |
- |
- |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
cervical epithelium | - |
Homo sapiens | - |
Storage Stability | Organism |
---|---|
-20°C, crude enzyme preparation, at least 3 months | Homo sapiens |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
CMP-N-acetylneuraminate + asialo-fetuin | best substrate | Homo sapiens | CMP + fetuin | - |
? | |
CMP-N-acetylneuraminate + asialo-orosomucoid | i.e. asialo-alpha1 acid glycoprotein | Homo sapiens | CMP + orosomucoid | - |
? | |
CMP-N-acetylneuraminate + asialo-orosomucoid | about half as effective as asialofetuin | Homo sapiens | CMP + orosomucoid | - |
? | |
CMP-N-acetylneuraminate + beta-D-galactosyl-1,4-N-acetyl-beta-D-glucosamine | poor substrate | Homo sapiens | CMP + alpha-N-acetylneuraminyl-2,6-beta-D-galactosyl-1,4-N-acetyl-beta-D-glucosamine | - |
? | |
CMP-N-acetylneuraminate + beta-D-galactosyl-1,4-N-acetyl-beta-D-glucosamine | i.e. N-acetyllactosamine | Homo sapiens | CMP + alpha-N-acetylneuraminyl-2,6-beta-D-galactosyl-1,4-N-acetyl-beta-D-glucosamine | - |
? | |
CMP-N-acetylneuraminate + beta-D-galactosyl-1,4-N-acetyl-beta-D-glucosaminyl-R | sialic acid is linked to C-6 of the galactose residue | Homo sapiens | CMP + alpha-N-acetylneuraminyl-2,6-beta-D-galactosyl-1,4-N-acetyl-beta-D-glucosaminyl-R | - |
? | |
CMP-N-acetylneuraminate + beta-D-galactosyl-1,4-N-acetyl-beta-D-glucosaminyl-R | high molecular weight substrates are more efficient acceptors than low molecular weight substrates | Homo sapiens | CMP + alpha-N-acetylneuraminyl-2,6-beta-D-galactosyl-1,4-N-acetyl-beta-D-glucosaminyl-R | - |
? | |
CMP-N-acetylneuraminate + fetuin | about 30% as effective as asialofetuin | Homo sapiens | ? | - |
? | |
additional information | no activity with N-acetyl-D-galactosamine or N-acetyl-D-glucosamine, and asialo-agalacto-fetuin, and galactose | Homo sapiens | ? | - |
? |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
28 | - |
- |
Homo sapiens |
37 | - |
assay at | Homo sapiens |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
6 | - |
broad | Homo sapiens |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
5.2 | 7.4 | about half-maximal activity at pH 5.2 and 7.4 | Homo sapiens |
Ki Value [mM] | Ki Value maximum [mM] | Inhibitor | Comment | Organism | Structure |
---|---|---|---|---|---|
0.18 | - |
CMP | - |
Homo sapiens |