LONDON, Dec 4 (Reuters) - European shares gave up gains to turn deeply negative on Thursday, tracking U.S. index futures after a bearish update from chemicals group DuPont (DD.N: Quote, Profile, Research, Stock Buzz).
At 1321 GMT, the FTSEurofirst 300 .FTEU3 index of top European shares was down 1 percent at 821.16 points.
Wall Street index futures SPc1 DJc1 NDc1 were down 1.5-1.9 percent after DuPont said that it expected a fourth quarter loss.
The European Central Bank cut rates by 75 basis points and the Bank of England by 100 basis points.
"DuPont says it sees a fourth quarter loss against a street estimate of a profit -- that's pushed the market down as it is a big Dow component. The rate cut was more or less in line," said a trader. (Reporting by Sitaraman Shankar)
