Crystal structure of saporin-L1 in complex with the trinucleotide inhibitor, a transition state analogue

Structure

x-ray diffraction · 1 distinct chain · 37% helix, 22% strand (DSSP).

Ligands and binding sites

• TXN · (2R,3R,4R,5R)-5-(2-amino-6-oxo-3,6-dihydro-9H-purin-9-yl)-2-({[(S)-({(3R,4R)-4-({[(S)-{[(2R,3R,4R,5R)-5-(2-amino-6-oxo-6,8-dihydro-9H-purin-9-yl)-2-(hydroxymethyl)-4-methoxytetrahydrofuran-3-yl]oxy}(hydroxy)phosphoryl]oxy}methyl)-1-[(4-amino-5H-pyrrolo[3,2-d]pyrimidin-7-yl)methyl]pyrrolidin-3-yl}oxy)(hydroxy)phosphoryl]oxy}methyl)-4-methoxytetrahydrofuran-3-yl 3-hydroxypropyl hydrogen (S)-phosphate · ligand · 2 copies · chains A, B

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Pockets

4 pockets found on a 1 Å grid, 2 with a druggability of 0.5 or more.

Interfaces

1 interface between chains.

• A–B · 796 Ų buried · 5 hydrogen bonds · protein-protein

Compared structures

• 3HIV · Crystal structure of Saporin-L1 in complex with the trinucleotide inhibitor, a transition… · the same entry in another collection · chain A against A, TM-score 1.00

Analyse

• Open in the research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides and crosslinks on the 3D structure
• Every structure of UniProt Q2QEH4
• Elsewhere: RCSB PDB 3HIV · PDBe 3HIV · UniProt Q2QEH4