Prostate-specific acid phosphatase

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Prostate-specific acid phosphatase
Prostate-specific acid phosphatase

Available structural data : 1CVI , 1ND5 , 1ND6 , 2HPA , 2L3H , 2L77 , 2L79 , 2MG0 , 3PPD

Properties of human protein
Mass / length primary structure 354 amino acids; 50 kDa
Secondary to quaternary structure Homodimer
Identifier
Gene names ACPP  ; ACP-3; ACP3; PAP
External IDs
Enzyme classification
EC, category 3.1.3.2 phosphatase
Response type Saponification
Substrate Phosphoric acid (mono) ester + H 2 O
Products Alcohol + phosphate
Occurrence
Homology family acid phosphatase
Parent taxon Euteleostomi
Orthologue
human House mouse
Entrez 55 56318
Ensemble ENSG00000014257 ENSMUSG00000032561
UniProt P15309 Q8CE08
Refseq (mRNA) NM_001099 NM_019807
Refseq (protein) NP_001090 NP_062781
Gene locus Chr 3: 132.32 - 132.37 Mb Chr 9: 104.29 - 104.34 Mb
PubMed search 55 56318

The prostate-specific acid phosphatase (abbreviated PAP , . Of English prostatic acid phosphatase ) is a glycoprotein - enzyme , which is produced by mammals and fish. It is produced in the prostate in humans . Beyond belonging to the acid phosphatases , nothing precise is known about its function. The laboratory value proves the activity of the prostate tissue and can therefore be used as a control when it is removed.

laboratory

In diagnostics, PAP is mainly used to monitor the progression of prostate cancer . It serves here with the more important prostate-specific antigen (PSA) as a tumor marker . Since increased PAP concentrations in the blood serum are measured not only in malignant but also in benign diseases of the prostate, the PAP is regarded as an organ-specific marker and not as tumor-specific.

rating

In healthy men the concentration is less than 2.0 ng / ml in the serum. Values ​​above 3.5 ng / ml are pathological. Persistent pathological values ​​during therapy for prostate cancer indicate therapy failure.

Nonspecific PAP elevations in the serum occur primarily with benign prostatic hyperplasia , but also with or after manual manipulation of the prostate (palpations, catheterization) or with inflammation of the prostate.

use

Recent research also suggests that PAP could be used as a highly effective pain reliever.

Individual evidence

  1. Mark J. Zylka, Nathaniel A. Sowa, Bonnie Taylor-Blake, Margaret A. Twomey, Annakaisa Herrala, Vootele Voikar, Pirkko Vihko: Prostatic acid phosphatase is an ectonucleotidase and suppresses pain by generating adenosine . In: Neuron . tape 60 , no. 1 , October 2008, p. 111–122 , doi : 10.1016 / j.neuron.2008.08.024 , PMC 2629077 (free full text).
  2. Painkillers: the body's own protein is more effective than morphine. In: Spiegel Online . October 9, 2008, accessed April 25, 2017 .

literature

  • Pschyrembel clinical dictionary , deGruyter publishing house, 256th edition
  • Medical laboratory tests , laboratory Dr. Gardener, 11th edition