Alkaline phosphatase

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(Redirected from Leukocyte alkaline phosphatase)

1ALK
PDB 1alk EBI.jpg
Alkaline phosphatase
Identifiers
EC number3.1.3.1
CAS number9001-78-9
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO


Alkaline phosphatase (ALP) is an enzyme that is found in many tissues throughout the body, including the liver, bone, kidney, and placenta. It is involved in the process of dephosphorylation, which is the removal of a phosphate group from a molecule.

Function[edit | edit source]

Alkaline phosphatase plays a crucial role in metabolism and signal transduction by dephosphorylating molecules such as nucleotides, proteins, and alkaloids. This enzyme is most active in an alkaline environment, hence its name.

Isoenzymes[edit | edit source]

There are several isoenzymes of alkaline phosphatase, which are classified based on their tissue of origin:

Clinical significance[edit | edit source]

Elevated levels of alkaline phosphatase in the blood can indicate various medical conditions, including liver disease, bone disorders, and biliary obstruction. Conversely, low levels of ALP can be associated with conditions such as hypophosphatasia.

Diagnostic use[edit | edit source]

Alkaline phosphatase levels are commonly measured in blood tests to help diagnose and monitor diseases. The test is often part of a liver function test panel.

Related enzymes[edit | edit source]

Alkaline phosphatase is part of a larger family of phosphatases, which includes:

See also[edit | edit source]

References[edit | edit source]

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Contributors: Prab R. Tumpati, MD