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  3. ALPL

ALPL (Alkaline phosphatase, liver/bone/kidney)

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Summary of ALPL

The ALPL gene provides instructions for making an enzyme called alkaline phosphatase. This enzyme may play a role in bone and teeth mineralization. Mutations in this gene have been linked to hypophosphatasia, a disorder that causes skeletal defects. 

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Protein names

Recommended name:

Alkaline phosphatase, tissue-nonspecific isozyme

Short name:

TNSALP

Alternative name(s):

AP-TNAP
Alkaline phosphatase liver/bone/kidney isozyme

ALPL SNPs

    To see your genotype, you should be logged in and have a file with your genotype uploaded.

  1. RS10799701 (ALPL) ??
  2. RS1256328 (ALPL) ??
  3. RS1256335 (ALPL) ??
  4. RS16825455 (ALPL) ??
  5. RS1697421 (ALPL) ??
  6. RS1780324 (ALPL) ??
  7. RS1780329 (ALPL) ??
  8. RS2242420 (ALPL) ??
  9. RS3767155 (ALPL) ??
  10. RS4654748 (ALPL) ??
  11. RS885814 (ALPL) ??

Top Gene-Substance Interactions

ALPL Interacts with These Diseases

Disease Score

Fixes

Fix: Vitamin B6

Substances That Increase ALPL

Substances Interaction Organism Category

Substances That Decrease ALPL

Substances Interaction Organism Category

Advanced Summary

The ALPL gene encodes alkaline phosphatase, tissue-nonspecific isozyme. This enzyme plays an important role in the growth and development of bones and teeth. It is also active in many other tissues, particularly in the liver and kidneys. This enzyme acts as a phosphatase, which means that it removes clusters of oxygen and phosphorus atoms (phosphate groups) from other molecules. Alkaline phosphatase is essential for the process of mineralization, in which minerals such as calcium and phosphorus are deposited in developing bones and teeth. Mineralization is critical for the formation of bones that are strong and rigid and teeth that can withstand chewing and grinding.    

More than 190 mutations in the ALPL gene have been identified in people with hypophosphatasia. About 80 percent of these mutations change a single protein building block (amino acid) in the alkaline phosphatase enzyme. Other mutations insert or delete genetic material in the ALPL gene or change the way the gene's instructions are used to build the enzyme. Mutations in the ALPL gene lead to the production of an abnormal version of alkaline phosphatase that cannot participate effectively in the mineralization of developing bones and teeth. A shortage of alkaline phosphatase allows substances that are normally processed by the enzyme to build up abnormally in the body. Researchers believe that a buildup of one of these compounds, inorganic pyrophosphate, underlies the defective mineralization of bones and teeth in people with hypophosphatasia. ALPL mutations that almost completely eliminate the activity of alkaline phosphatase usually result in the more severe forms of hypophosphatasia. Other mutations, which reduce but do not eliminate the activity of the enzyme, are often responsible for milder forms of the condition.

 

Conditions with Increased Gene Activity

Condition Change (log2fold) Comparison Species Experimental variables Experiment name

Conditions with Decreased Gene Activity

Condition Change (log2fold) Comparison Species Experimental variables Experiment name

Technical

The following transcription factors affect gene expression:

  • NF-kappaB
  • NF-kappaB1

Gene Pathways:

  • Metabolic pathways
  • Folate biosynthesis

Cofactor:

Binds 2 Zn(2+) ions.

Molecular Function:

  • Alkaline Phosphatase Activity
  • Metal Ion Binding
  • Pyrophosphatase Activity

Biological Processes:

  • Cellular Response To Organic Cyclic Compound
  • Cementum Mineralization
  • Developmental Process Involved In Reproduction
  • Endochondral Ossification
  • Osteoblast Differentiation
  • Response To Antibiotic
  • Response To Glucocorticoid
  • Response To Lipopolysaccharide
  • Response To Vitamin D
  • Skeletal System Development

Drug Bank:

  • Amifostine
  • Fospropofol
*synonyms

Synonyms/Aliases/Alternative Names of the Gene:

hypothetical protein| Akp2| Akp-2| Alkaline phosphatase| alkaline phosphatase 2, liver| alkaline phosphatase liver/bone/kidney isozyme| alkaline phosphatase tissue non-specific isoform| Alkaline phosphatase, tissue-nonspecific isozyme| ALP| APTNAP| AP-TNAP| CB1_001086064| EGK_00340| GW7_07520| H920_06128| HOPS| liver/bone/kidney isozyme| liver/bone/kidney-type alkaline phosphatase| M91_09659| M959_05535| N300_06049| N301_00740| N302_05522| N303_13063| N307_15165| N330_10070| N332_07427| N333_13121| PAL_GLEAN10015195| PANDA_008205| PHOA| PPB| tissue non-specific alkaline phosphatase| tissue-nonspecific alkaline phosphatase| tissue-nonspecific ALP| Tissue-nonspecific ALP alkaline phosphatase| TNAP| TNSALP| TNS-AP| TREES_T100008788| UY3_12821| Y1Q_025692| Y956_03152| alpl

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