The Optimum Temperature of Alkaline Phosphatase

••• Kkolosov/iStock/GettyImages

Protein enzymes play an important role in many physiological processes, such as growth and reproduction. The addition of phosphates activates many proteins, and enzymes called phosphatases remove these phosphates when the activated protein has finished its work. Phosphatases operate best at their optimal temperature.

Alkaline Phosphatase

Both acid and alkaline phosphatases exist in living tissues. Alkaline phosphatase works best when the pH is about 8.6. An acid pH (below 7.0) hampers the activity of alkaline phosphatase, and a pH below 5.0 might denature it, according to the Journal of Bacteriology.

Optimum Temperature

In the human body, the optimum temperature of alkaline phosphatase does not range far from 37 degrees Celsius, the normal body temperature. For example, the optimum temperature of alkaline phosphatase taken from a mole caused by tapeworm cysts proved to be 40 degrees Celsius, according to the Pakistan Journal of Medical Sciences.

Variant Optimum Temperatures

Different types of alkaline phosphatase have different optimum temperatures. It is about 42 degrees Celsius in the intestines of lizards, according to Paul Licht, and 37 degrees Celsius in the bacterium Bordetella bronchiseptica, according to the Canadian Journal of Comparative Medicine. The optimal temperature may differ when taken from the cell to which it belongs. Alkaline phosphate has an optimum temperature of 40 degrees Celsius in the cells of the fungus Cenococcus grandiforme. But when the same enzyme was removed from the cell and purified, its optimum temperature was 30 degrees Celsius, according to Applied and Environmental Microbiology.

Related Articles

Types of Bacteria on the Tongue
How Enterococcus Faecalis Changes the Mannitol Salt...
What Are the Benefits of Ribosomes?
What Is the Optimum pH for Human Stomach Enzyme Activity?
What Happens When There Is No Oxygen Available at the...
Types of Microorganisms & Optimum PH
Dangers of Phosphoric Acid
The Difference Between Sucralose & Fructose
What Are the Effects of an Alkaline pH on the Structure...
Foods That Make Your Body Acidic
Characteristics of a Catalase Enzyme
Types of Bacteria Living in Acidic pH
What Is the Importance of Nucleic Acids?
Differences Between Zinc Monomethionine and Zinc Picolinate
What Are Biological Buffers?
List of Neutrophilic & Acidophilic Heterotrophic Bacteria
The Two Types of Exocrine Secretory Cells in the Stomach
What Types of Bacteria Produce Endospores?
The Chemical Composition of Nutrient Agar
What Are the Two Prokaryotic Kingdoms?