Structural highlights
5mby is a 2 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
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| Ligands: | GLY, GOL, MN, OH, PRO |
| Related: | 5m4j, 5mbz, 5mc0, 5mc1, 5mc2, 5mc3, 5mc4, 5mc5 |
| Activity: | Xaa-Pro dipeptidase, with EC number 3.4.13.9 |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT |
Disease
[PEPD_HUMAN] Defects in PEPD are a cause of prolidase deficiency (PD) [MIM:170100]. Prolidase deficiency is an autosomal recessive disorder associated with iminodipeptiduria. The clinical phenotype includes skin ulcers, mental retardation, recurrent infections, and a characteristic facies. These features, however are incompletely penetrant and highly variable in both age of onset and severity. There is a tight linkage between the polymorphisms of prolidase and the myotonic dystrophy trait.[1] [2] [3] [4]
Function
[PEPD_HUMAN] Splits dipeptides with a prolyl or hydroxyprolyl residue in the C-terminal position. Plays an important role in collagen metabolism because the high level of iminoacids in collagen.
References
- ↑ Tanoue A, Endo F, Kitano A, Matsuda I. A single nucleotide change in the prolidase gene in fibroblasts from two patients with polypeptide positive prolidase deficiency. Expression of the mutant enzyme in NIH 3T3 cells. J Clin Invest. 1990 Jul;86(1):351-5. PMID:2365824 doi:https://dx.doi.org/10.1172/JCI114708
- ↑ Ledoux P, Scriver C, Hechtman P. Four novel PEPD alleles causing prolidase deficiency. Am J Hum Genet. 1994 Jun;54(6):1014-21. PMID:8198124
- ↑ Ledoux P, Scriver CR, Hechtman P. Expression and molecular analysis of mutations in prolidase deficiency. Am J Hum Genet. 1996 Nov;59(5):1035-9. PMID:8900231
- ↑ Forlino A, Lupi A, Vaghi P, Icaro Cornaglia A, Calligaro A, Campari E, Cetta G. Mutation analysis of five new patients affected by prolidase deficiency: the lack of enzyme activity causes necrosis-like cell death in cultured fibroblasts. Hum Genet. 2002 Oct;111(4-5):314-22. Epub 2002 Aug 14. PMID:12384772 doi:10.1007/s00439-002-0792-5
