Trump tells Iran to negotiate as Vance heads to Pakistan for peace talks

The Iranian delegation is yet to arrive in Islamabad - Iran's parliament speaker says there must be a ceasefire in Lebanon ...

Vance warns Iran against 'trying to play' US as he heads to Pakistan for peace talks

The US and Iran announced a ceasefire on Tuesday - but Israel continued hitting Lebanon, killing 182 people on Wednesday ...
Nature

A closer view of the conformation of the Lac repressor bound to operator

Crystal structures of the Lac repressor, with and without isopropylthiogalactoside (IPTG), and the repressor bound to operator have provided a model for how the binding of the inducer reduces the ...