The protein contains 1482 amino acids for an estimated molecular weight of 163863 Da.
Is able to inhibit all four classes of proteinases by a unique 'trapping' mechanism. This protein has a peptide stretch, called the 'bait region' which contains specific cleavage sites for different proteinases. When a proteinase cleaves the bait region, a conformational change is induced in the protein which traps the proteinase. The entrapped enzyme remains active against low molecular weight substrates (activity against high molecular weight substrates is greatly reduced). Following cleavage in the bait region a thioester bond is hydrolyzed and mediates the covalent binding of the protein to the proteinase. (updated: Jan. 7, 2015)
Protein identification was indicated in the following studies:
The following articles were analysed to gather the proteome content of erythrocytes.
The gene or protein list provided in the studies were processed using the ID mapping API of Uniprot in September 2018. The number of proteins identified and mapped without ambiguity in these studies is indicated below.
Only Swiss-Prot entries (reviewed) were considered for protein evidence assignation.
Publication | Identification 1 | Uniprot mapping 2 | Not mapped / Obsolete | TrEMBL | Swiss-Prot |
---|---|---|---|---|---|
Goodman (2013) | 2289 (gene list) | 2278 | 53 | 20599 | 2269 |
Lange (2014) | 1234 | 1234 | 7 | 28 | 1224 |
Hegedus (2015) | 2638 | 2622 | 0 | 235 | 2387 |
Wilson (2016) | 1658 | 1528 | 170 | 291 | 1068 |
d'Alessandro (2017) | 1826 | 1817 | 2 | 0 | 1815 |
Bryk (2017) | 2090 | 2060 | 10 | 108 | 1942 |
Chu (2018) | 1853 | 1804 | 55 | 362 | 1387 |
1 as available in the article and/or in supplementary material
2 uniprot mapping returns all protein isoforms as one entry
The compilation of older studies can be retrieved from the Red Blood Cell Collection database.
The data and differentiation stages presented below come from the proteomic study and analysis performed by our partners of the GReX consortium, more details are available in their published work.
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The reference OMIM entry for this protein is 176420
Feb. 2, 2018: Protein entry updated
Automatic update: Uniprot description updated
Dec. 19, 2017: Protein entry updated
Automatic update: Uniprot description updated
Nov. 23, 2017: Protein entry updated
Automatic update: Uniprot description updated
June 20, 2017: Protein entry updated
Automatic update: comparative model was added.
March 25, 2017: Additional information
No protein expression data in P. Mayeux work for PZP
March 16, 2016: Protein entry updated
Automatic update: OMIM entry 176420 was added.