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Molecular Modeling Studies on the Binding Mode of the PD-1/PD-L1 Complex Inhibitors.


ABSTRACT: The programmed cell death protein 1 (PD-1)/programmed cell death ligand 1 (PD-L1) is an immune checkpoint (ICP) overexpressed in various types of tumors; thus, it has been considered as an important target for cancer therapy. To determine important residues for ligand binding, we applied molecular docking studies to PD-1/PD-L1 complex inhibitors against the PD-L1 protein. Our data revealed that the residues Tyr56, Asp122, and Lys124 play critical roles in ligand binding to the PD-L1 protein and they could be used to design ligands that are active against the PD-1/PD-L1 complex. The formation of H-bonds with Arg125 of the PD-L1 protein may enhance the potency of the PD-1/PD-L1 binding.

SUBMITTER: Almahmoud S 

PROVIDER: S-EPMC6770281 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature

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Molecular Modeling Studies on the Binding Mode of the PD-1/PD-L1 Complex Inhibitors.

Almahmoud Suliman S   Zhong Haizhen A HA  

International journal of molecular sciences 20190919 18


The programmed cell death protein 1 (PD-1)/programmed cell death ligand 1 (PD-L1) is an immune checkpoint (ICP) overexpressed in various types of tumors; thus, it has been considered as an important target for cancer therapy. To determine important residues for ligand binding, we applied molecular docking studies to PD-1/PD-L1 complex inhibitors against the PD-L1 protein. Our data revealed that the residues Tyr56, Asp122, and Lys124 play critical roles in ligand binding to the PD-L1 protein and  ...[more]

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