The Department of Justice is not appealing a decision that deregulated suppressors for some gun sellers and buyers back in August. Here's what comes next.

Solicitor General D. John Sauer told Senate Judiciary Chair Chuck Grassley, R-Iowa, that the Department of Justice will not appeal a Texas court ruling that struck down National Firearms Act registration requirements for suppressors and short-barreled guns.

Solicitor General D. John Sauer told Senate Judiciary Chair Chuck Grassley, R-Iowa, that the Department of Justice will not appeal a Texas court ruling that struck down National Firearms Act registration for suppressors and short-barreled guns.

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Xue et al. identify DDIAS as an effector of the CIP2A-TOPBP1 complex. DDIAS is a single-stranded DNA-binding protein that promotes the repair of single-stranded DNA lesions during cell division. This activity is essential in cells lacking the BRCA1 or BRCA2 tumor suppressors or in cells lacking DNA polymerase ζ.

A protein known as p53 is, of all tumor suppressors in human cancer, the most frequently altered by gene mutations. When mutations cause it to be absent or nonfunctional, its loss can allow populations of mutant cells to expand through normal tissue.

A protein known as p53 is, of all tumor suppressors in human cancer, the most frequently altered by gene mutations. When mutations cause it to be absent or nonfunctional, its loss can allow populations of mutant cells to expand through normal tissue. Researchers have long known that loss of p53 does more than remove a block to cell growth. But how p53 loss changes tissue behavior to permit this growth remains unclear.

Powell’s annual city auction includes a hodgepodge of old firearms and suppressors accumulated over the years. One national expert on police evidence said…