* Growth in euro zone manufacturing,services slows in Sept
* Jobless claims, existing home sales data on tap
* Futures down: S&P 7.1 pts, Dow 51 pts, Nasdaq 7.25 pts
* For up-to-the-minute market news see [STXNEWS/US]
NEW YORK, Sept 23 (Reuters) - U.S. stock index futures fell on Thursday, pressured by weak economic data out of Europe and on expectations that U.S. weekly jobless claims data will show employment conditions are still under pressure.
* European stocks fell after data showed the pace of growth in the euro zone's services and manufacturing sectors slowed more than expected this month, rekindling worries about economic recovery in the region.
* Investors are closely eyeing weekly initial jobless claims due at 8:30 a.m. [1230 GMT]. Analysts in a Reuters survey expect a reading of 450,000, unchanged from the prior week, suggesting job market conditions continue to be pressured. Existing home sales data for August is due at 10:00 a.m. [1400 GMT]. Analysts forecast home sales rose to 4.10 million units from 3.83 million in the previous month.
* S&P 500 futures
* Red Hat Inc
* Bed Bath & Beyond
* United Parcel Service Inc
* Starbucks Corp
* The timing of the U.S. Securities and Exchange
Commission's case against Goldman Sachs
* Microsoft
* U.S. stocks slipped on Wednesday, ending the Dow's five-day winning streak, following Adobe's discouraging revenue outlook and investor disappointment over Microsoft's new dividend.
(Reporting by Angela Moon, Editing by Chizu Nomiyama)