Regulation of extracellular acid phosphatase biosynthesis by phosphates in proteinase producing fungus Humicola lutea 120-5

2000 ◽  
Vol 27 (8) ◽  
pp. 570-575 ◽  
Author(s):  
Penka Aleksieva ◽  
Sofiya Micheva–Viteva
Keyword(s):  
Acid Phosphatase ◽  
Extracellular Acid Phosphatase ◽  
Humicola Lutea

Relationship between citric acid and extracellular acid phosphatase production byAspergillus niger

1996 ◽  
Vol 16 (2-3) ◽  
pp. 207-213 ◽  
Author(s):  
J. Fiedurek ◽  
B. Pluta ◽  
J. Szczodrak ◽  
J. Jamroz
Keyword(s):  
Acid Phosphatase ◽  
Citric Acid ◽  
Extracellular Acid Phosphatase

Extracellular acid phosphatase as a minor enzyme during the production of proteinases byHumicola lutea 120-5

1996 ◽  
Vol 16 (1) ◽  
pp. 65-71 ◽  
Author(s):  
B. Tchorbanov ◽  
P. Aleksieva ◽  
N. Dambadarja ◽  
G. Dyulgerova
Keyword(s):  
Acid Phosphatase ◽  
Extracellular Acid Phosphatase ◽  
A Minor

Identification and partial characterization of an extracellular acid phosphatase activity of Leishmania donovani promastigotes

1982 ◽  
Vol 2 (1) ◽  
pp. 76-81
Author(s):  
M Gottlieb ◽  
D M Dwyer
Keyword(s):  
Acid Phosphatase ◽  
Leishmania Donovani ◽  
Surface Membrane ◽  
Extracellular Enzyme ◽  
Growth Cycle ◽  
Growth Media ◽  
Ph Optimum ◽  
Membrane Bound ◽  
Extracellular Acid Phosphatase

An extracellular acid phosphatase was detected in the growth media of Leishmania donovani promastigotes. The enzyme was released at all stages of the growth cycle and in amounts which accounted for 90% of the total amount of this enzyme in the culture. The exoenzyme exhibited a pH optimum of 4.5 to 5.0 and was active with a variety of organic phosphates. The enzymatic activity was excluded from Sephacryl S-300 and was retained by ultrafilters with nominal molecular weight cutoffs of up to 300,000. The results of comparative studies indicated that the extracellular enzyme was distinct from a surface membrane-bound acid phosphatase of L. donovani promastigotes which has been previously described.

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