Macrocyclic Envelope Glycoprotein Antagonists that Irreversibly Inactivate HIV-1 before Host Cell Encounter.

ABSTRACT: We derived macrocyclic HIV-1 antagonists as a new class of peptidomimetic drug leads. Cyclic peptide triazoles (cPTs) retained the gp120 inhibitory and virus-inactivating signature of parent PTs, arguing that cyclization locked an active conformation. The six-residue cPT 9 (AAR029b) exhibited submicromolar antiviral potencies in inhibiting cell infection and triggering gp120 shedding that causes irreversible virion inactivation. Importantly, cPTs were stable to trypsin and chymotrypsin compared to substantial susceptibility of corresponding linear PTs.

SUBMITTER: Rashad AA 

PROVIDER: S-EPMC4936186 | biostudies-literature | 2015 Sep

REPOSITORIES: biostudies-literature