Crystal structure of retroviral protease-like domain of Ddi1 from Leishmania majorCrystal structure of retroviral protease-like domain of Ddi1 from Leishmania major

Structural highlights

5ys4 is a 6 chain structure with sequence from Leishmania major. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.3Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

DDI1_LEIMA Aspartic protease (PubMed:22933181, PubMed:21266539).[1] [2]

Publication Abstract from PubMed

DNA damage-inducible 1 (Ddi1) is a multidomain protein with one of the domains being retropepsin-like. HIV-1 protease inhibitors were found to reduce opportunistic infections caused by pathogens like Leishmania and Plasmodium, and some of them were shown to inhibit the growth of these parasites. In Leishmania, Ddi1 was identified as a likely target of the inhibitors. We report the crystal structure of the retropepsin-like domain of Ddi1 from Leishmania major as a dimer with clear density for the critical 'flap' region. We have characterized binding with one of the HIV-1 protease inhibitors in solution using bio-layer interferometry and by docking. Further, we have performed molecular dynamics (MD) simulation studies that show that the protein undergoes a conformational change from open to semi-open and closed forms with the closing of the flexible flap over the active site.

Crystal structure of the retroviral protease-like domain of a protozoal DNA damage-inducible 1 protein.,Kumar S, Suguna K FEBS Open Bio. 2018 Aug 3;8(9):1379-1394. doi: 10.1002/2211-5463.12491., eCollection 2018 Sep. PMID:30186740[3]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

  1. Perteguer MJ, Gómez-Puertas P, Cañavate C, Dagger F, Gárate T, Valdivieso E. Ddi1-like protein from Leishmania major is an active aspartyl proteinase. Cell Stress Chaperones. 2013 Mar;18(2):171-81. PMID:22933181 doi:10.1007/s12192-012-0368-9
  2. White RE, Powell DJ, Berry C. HIV proteinase inhibitors target the Ddi1-like protein of Leishmania parasites. FASEB J. 2011 May;25(5):1729-36. PMID:21266539 doi:10.1096/fj.10-178947
  3. Kumar S, Suguna K. Crystal structure of the retroviral protease-like domain of a protozoal DNA damage-inducible 1 protein. FEBS Open Bio. 2018 Aug 3;8(9):1379-1394. doi: 10.1002/2211-5463.12491., eCollection 2018 Sep. PMID:30186740 doi:http://dx.doi.org/10.1002/2211-5463.12491

5ys4, resolution 2.30Å

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