8s00 | pdb_00008s00

CpKRS complexed with lysine and an inhibitor

spinqualitylabelsall models 8s00, resolution 2.00Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 8s00 is a 2 chain structure with sequence from Cryptosporidium parvum Iowa. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2Å Ligands: A1H4W, GOL, LYS, TRS Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function Q5CR27_CRYPI Publication Abstract from PubMed Cryptosporidiosis is a diarrheal disease caused by infection with Cryptosporidium spp. parasites and is a leading cause of death in malnourished children worldwide. The only approved treatment, nitazoxanide, has limited efficacy in this at-risk patient population. Additional safe therapeutics are urgently required to tackle this unmet medical need. However, the development of anti-cryptosporidial drugs is hindered by a lack of understanding of the optimal compound properties required to treat this gastrointestinal infection. To address this knowledge gap, a diverse set of potent lysyl-tRNA synthetase inhibitors was profiled to identify optimal physicochemical and pharmacokinetic properties required for efficacy in a chronic mouse model of infection. The results from this comprehensive study illustrated the importance of balancing solubility and permeability to achieve efficacy in vivo. Our results establish in vitro criteria for solubility and permeability that are predictive of compound efficacy in vivo to guide the optimization of anti-cryptosporidial drugs. Two compounds from chemically distinct series (DDD489 and DDD508) were identified as demonstrating superior efficacy and prioritized for further evaluation. Both compounds achieved marked parasite reduction in immunocompromised mouse models and a disease-relevant calf model of infection. On the basis of these promising data, these compounds have been selected for progression to preclinical safety studies, expanding the portfolio of potential treatments for this neglected infectious disease. Cryptosporidium lysyl-tRNA synthetase inhibitors define the interplay between solubility and permeability required to achieve efficacy.,Caldwell N, Peet C, Miller P, Colon BL, Taylor MG, Cocco M, Dawson A, Lukac I, Teixeira JE, Robinson L, Frame L, Seizova S, Damerow S, Tamaki F, Post J, Riley J, Mutter N, Hanna JC, Ferguson L, Hu X, Tinti M, Forte B, Norcross NR, Campbell PS, Svensen N, Caldwell FC, Jansen C, Postis V, Read KD, Huston CD, Gilbert IH, Baragana B, Pawlowic MC Sci Transl Med. 2024 Oct 23;16(770):eadm8631. doi: 10.1126/scitranslmed.adm8631. , Epub 2024 Oct 23. PMID:39441903 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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