Biochemical Isolation and Characterization of Hyaluronidase Enzyme from Venom of Egyptian Honey Bee Apis Mellifera Lamarckii
, , , , oraz
02 lip 2020
O artykule
Kategoria artykułu: Original Article
Data publikacji: 02 lip 2020
Zakres stron: 153 - 164
Otrzymano: 04 gru 2019
Przyjęty: 03 mar 2020
DOI: https://doi.org/10.2478/jas-2020-0015
Słowa kluczowe
© 2020 Mohammed M. Abdel-Monsef et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
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![(a) Inhibition of the purified honey bee venom hyaluronidase by varying concentrations of Heparin. (b) Hill plot for inhibition of the purified hyaluronidase by varying concentrations of Heparin where Vmax is the enzyme activity in absence of inhibitor, Vi is the enzyme activity in presence of inhibitor and [I] is inhibitor concentration in units of Heparin. (c) Lineweaver-Burk plots showing the type of inhibition of the purified honey bee venom hyaluronidase by Heparin. The activity of the purified hyaluronidase was measured with varying concentrations of the substrate hyaluronic acid in absence and presence of three various concentrations of Heparin. (d) Determination of the inhibition constant (Ki) value for the inhibition of the purified hyaluronic acid by Heparin. The plotted slope values were determined from the lines of the reciprocal plots of the different inhibitor concentrations.](https://sciendo-parsed.s3.eu-central-1.amazonaws.com/647208f8215d2f6c89db9863/j_jas-2020-0015_fig_004.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=AKIA6AP2G7AKOUXAVR44%2F20250907%2Feu-central-1%2Fs3%2Faws4_request&X-Amz-Date=20250907T114919Z&X-Amz-Expires=3600&X-Amz-Signature=62676bc7a540faf777a818cf329baa3a5a8ad0380b2e24e4621ec5e5dc8a597a&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject)
A typical purification scheme of honey bee venom hyaluronidase
Purification steps | Total protein (mg) | Total Activity (unit) | Specific Activity | Yield (%) | Fold Purification |
---|---|---|---|---|---|
Crude honey bee venom | 27.2 | 3466.2 | 127.43 | 100 | 1.0 |
DEAE-Cellulose | |||||
Hyalurodinase (0 M NaCI) | 12.5 | 2932.8 | 234.62 | 84.6 | 1.84 |
Sephacryl S-300 | |||||
Hyalurodinase | 4.2 | 1729.1 | 411.7 | 49.9 | 3.23 |
Effect of divalent cations on honey bee venom hyaluronidase
Reagent | Final Concentration (mM) | Residual activity (%) |
---|---|---|
Control | ----- | 100.0 |
CaCl2 | 2.0 | 96.4 |
5.0 | 89.9 | |
CoCl2 | 2.0 | 49.7 |
5.0 | 28.1 | |
CuCl2 | 2.0 | 98.0 |
5.0 | 93.1 | |
FeCl2 | 2.0 | 18.8 |
5.0 | 11.2 | |
MgCl2 | 2.0 | 109.0 |
5.0 | 115.0 | |
MnCl2 | 2.0 | 44.5 |
5.0 | 20.7 | |
NiCl2 | 2.0 | 52.4 |
5.0 | 27.5 | |
ZnCl2 | 2.0 | 112.0 |
5.0 | 118.0 |
Effect of various inhibitors on honey bee venom hyaluronidase
Reagent | Final Concentration (mM) | Inhibition (%) |
---|---|---|
Control | ----- | 0.0 |
1,10 Phenanthroline | 2.0 | 72.8 |
5.0 | 85.1 | |
β-Mercaptoethanol | 2.0 | 37.6 |
5.0 | 48.4 | |
Citric acid | 2.0 | 50.9 |
5.0 | 69.3 | |
Dithiothreitol (DTT) | 2.0 | 15.6 |
5.0 | 23.3 | |
EDTA | 2.0 | 52.2 |
5.0 | 71.8 | |
Heparin | 5 U | 47.85 |
10 U | 85.73 | |
Hydrogen peroxide (H2O2) | 2.0 | 30.2 |
5.0 | 43.6 | |
Iodoacetamide | 2.0 | 21.3 |
5.0 | 29.1 | |
Potassium cyanide (KCN) | 2.0 | 12.4 |
5.0 | 15.8 | |
Sodium azide (NaN3) | 2.0 | 16.5 |
5.0 | 22.1 | |
Phenyl methyl sulfonyl fluoride (PMSF) | 2.0 | 26.7 |
5.0 | 31.8 | |
Reduced glutathione | 2.0 | 8.20 |
5.0 | 12.4 | |
Sodium dodecyl sulphate | 2.0 | 6.20 |
5.0 | 9.60 | |
Urea | 2.0 | 78.3 |
5.0 | 89.9 |