Summary for 7RY7
| Entry DOI | 10.2210/pdb7ry7/pdb |
| Descriptor | Plasmepsin X, 2-acetamido-2-deoxy-beta-D-glucopyranose, 1,2-ETHANEDIOL, ... (4 entities in total) |
| Functional Keywords | ssgcid, plasmepsin x, plasmodium falciparum, pm10, pmx, structural genomics, seattle structural genomics center for infectious disease, hydrolase |
| Biological source | Plasmodium falciparum (isolate 3D7) |
| Total number of polymer chains | 1 |
| Total formula weight | 53364.27 |
| Authors | Seattle Structural Genomics Center for Infectious Disease (SSGCID) (deposition date: 2021-08-24, release date: 2022-02-02, Last modification date: 2024-10-16) |
| Primary citation | Kesari, P.,Deshmukh, A.,Pahelkar, N.,Suryawanshi, A.B.,Rathore, I.,Mishra, V.,Dupuis, J.H.,Xiao, H.,Gustchina, A.,Abendroth, J.,Labaied, M.,Yada, R.Y.,Wlodawer, A.,Edwards, T.E.,Lorimer, D.D.,Bhaumik, P. Structures of plasmepsin X from Plasmodium falciparum reveal a novel inactivation mechanism of the zymogen and molecular basis for binding of inhibitors in mature enzyme. Protein Sci., 31:882-899, 2022 Cited by PubMed Abstract: Plasmodium falciparum plasmepsin X (PfPMX), involved in the invasion and egress of this deadliest malarial parasite, is essential for its survival and hence considered as an important drug target. We report the first crystal structure of PfPMX zymogen containing a novel fold of its prosegment. A unique twisted loop from the prosegment and arginine 244 from the mature enzyme is involved in zymogen inactivation; such mechanism, not previously reported, might be common for apicomplexan proteases similar to PfPMX. The maturation of PfPMX zymogen occurs through cleavage of its prosegment at multiple sites. Our data provide thorough insights into the mode of binding of a substrate and a potent inhibitor 49c to PfPMX. We present molecular details of inactivation, maturation, and inhibition of PfPMX that should aid in the development of potent inhibitors against pepsin-like aspartic proteases from apicomplexan parasites. PubMed: 35048450DOI: 10.1002/pro.4279 PDB entries with the same primary citation |
| Experimental method | X-RAY DIFFRACTION (2.1 Å) |
Structure validation
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