5sdd

Structural highlights

Function

DPP11_PORG3 Catalyzes the removal of dipeptides from the N-terminus of oligopeptides. Shows a strict specificity for acidic residues (Asp or Glu) in the P1 position, and has a hydrophobic residue preference at the P2 position. Preferentially cleaves the synthetic substrate Leu-Asp-methylcoumaryl-7-amide (Leu-Asp-MCA) as compared to Leu-Glu-MCA. Is involved in amino acid metabolism and bacterial growth of asaccharolytic P.gingivalis, that utilizes amino acids from extracellular proteinaceous nutrients as energy and carbon sources.^{[1] [2]}

See Also

• Dipeptidyl peptidase 3D structures

References

1. ↑ Ohara-Nemoto Y, Shimoyama Y, Kimura S, Kon A, Haraga H, Ono T, Nemoto TK. Asp- and Glu-specific novel dipeptidyl peptidase 11 of Porphyromonas gingivalis ensures utilization of proteinaceous energy sources. J Biol Chem. 2011 Nov 4;286(44):38115-27. doi: 10.1074/jbc.M111.278572. Epub 2011, Sep 6. PMID:21896480 doi:http://dx.doi.org/10.1074/jbc.M111.278572
2. ↑ Rouf SM, Ohara-Nemoto Y, Hoshino T, Fujiwara T, Ono T, Nemoto TK. Discrimination based on Gly and Arg/Ser at position 673 between dipeptidyl-peptidase (DPP) 7 and DPP11, widely distributed DPPs in pathogenic and environmental gram-negative bacteria. Biochimie. 2013 Apr;95(4):824-32. doi: 10.1016/j.biochi.2012.11.019. Epub 2012, Dec 12. PMID:23246913 doi:http://dx.doi.org/10.1016/j.biochi.2012.11.019