3.4.24.79: pappalysin-1
This is an abbreviated version!
For detailed information about pappalysin-1, go to the full flat file.
Word Map on EC 3.4.24.79
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3.4.24.79
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women
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trimester
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fetal
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chorionic
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translucency
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nuchal
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first-trimester
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singleton
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trisomy
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artery
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ultrasound
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beta-hcg
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uterine
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preeclampsia
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gonadotrophin
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prenatal
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false-positive
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aneuploidy
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beta-human
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coronary
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fetuses
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doppler
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pulsatility
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preterm
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igfbps
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igf-i
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igf-binding
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crown-rump
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second-trimester
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inhibin
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alpha-fetoprotein
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centile
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obstetric
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screen-positive
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stillbirth
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amniocentesis
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euploid
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sonograph
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venosus
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metzincin
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afro-caribbeans
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medicine
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pregnancy-specific
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sflt-1
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adam12
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small-for-gestational-age
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monochorionic
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delfia
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triploidy
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molecular biology
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diagnostics
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oestriol
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small-for-gestational
- 3.4.24.79
- women
-
trimester
- fetal
- chorionic
-
translucency
-
nuchal
-
first-trimester
-
singleton
-
trisomy
- artery
-
ultrasound
-
beta-hcg
- uterine
- preeclampsia
-
gonadotrophin
-
prenatal
-
false-positive
-
aneuploidy
-
beta-human
- coronary
- fetuses
-
doppler
-
pulsatility
-
preterm
-
igfbps
- igf-i
-
igf-binding
-
crown-rump
-
second-trimester
-
inhibin
- alpha-fetoprotein
-
centile
-
obstetric
-
screen-positive
- stillbirth
-
amniocentesis
-
euploid
-
sonograph
-
venosus
-
metzincin
-
afro-caribbeans
- medicine
-
pregnancy-specific
- sflt-1
- adam12
-
small-for-gestational-age
-
monochorionic
-
delfia
-
triploidy
- molecular biology
- diagnostics
-
oestriol
-
small-for-gestational
Reaction
Cleavage of the Met135-/-Lys bond in insulin-like growth factor binding protein (IGFBP)-4, and the Ser143-/-Lys bond in IGFBP-5 =
Synonyms
IGF binding protein-4 protease, IGF binding protein-4 specific proteinase, IGF-BP-4 proteinase, IGFBP proteinase, IGFBP-4 protease, insulin-like growth factor binding protein-4 protease, insulin-like growth factor-binding protein proteinase, More, PAPP-A, PAPP-A2, PAPPA, pappalysin-1, pregnancy associated plasma protein-A, pregnancy-associated plasma protein A, pregnancy-associated plasma protein-A, pregnancy-associated plasma protein-A2, pregnancy-related serine protease, protein IGF-BP 4 proteinase
ECTree
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Inhibitors
Inhibitors on EC 3.4.24.79 - pappalysin-1
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beta-phorbol-12,13-didecanoate
100 nM, time-dependent inhibition, possibly through induction of pro-eosinophil major basic protein
IGF-I
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the rate of IGFBP-4 proteolysis is dramatically increased upon addition of IGF-I or -II with IGF-II being more potent than IGF-I, while IGFBP-5 cleavage is slightly inhibited, overview
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IGF-II
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the rate of IGFBP-4 proteolysis is dramatically increased upon addition of IGF-I or -II with IGF-II being more potent than IGF-I, while IGFBP-5 cleavage is slightly inhibited, overview
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PAC1
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specific monoclonal antibody inhibiting PAPP-A activity against IGFBP-4, only slight inhibition of IGFBP-5 proteolysis
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i.e. proMBP, the glycosaminoglycan of proMBP is not required for PAPP-A-proMBP complex formation, while proMBP residues His137, Ser178, Arg179, and Asn181 are important for the recognition of PAPP-A, complex formation increases the half-life of enzyme and inhibitor, the PAPP-A-proMBP complex is formed at the cell surface in vivo rather than in the circulation, the redox potential of the tissue microenvironment controls the process, chondroitin or dermatan sulfate do not have any effect on complex formation
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proform of eosinophil major basic protein
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i.e. proMBP, complex formation with PAPP-A
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not inhibitory: pepstatin A, E-64, chymostatin, aprotinin, PMSF
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additional information
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monoclonal phage-derived scFv antibodies selectively inhibit the cleavage of IGFBP-4 by PAPP-A, none of the antibodies inhibit the homologous proteinase PAPP-A2, which allowed mapping of antibody binding by means of chimeras between PAPP-A and PAPP-A2 to the C-terminal Lin12-Notch repeat module, separated from the proteolytic domain by almost 1000 amino acids, the LNR module requires bound calcium for antibody binding, selective inhibition of IGFBP-4 cleavage by interference with exosite binding, binding site mapping, overview
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