By Carla Mozee, MarketWatch

LONDON (MarketWatch) -- European stocks turned lower Thursday, unable to gain traction after quarterly growth in the U.S., the world's largest economy, was revised higher.

The Stoxx Europe 600 index shed 0.1% to 330.52, but had seen slight gains during the session. The benchmark was held back in part by losses among U.K. equities.

The pullback in European stocks came alongside a lower open for Wall Street, as the U.S. government upgraded fourth-quarter economic growth to 2.6% from 2.4%, largely on the back of higher spending on health care. At the same time, an increase in business investment was lower than previously estimated.

The finance sector was in focus after the U.S. Federal Reserve on Wednesday rejected the capital plans for the U.S. arms of British multinational HSBC Holding PLC , Spain's Santander and Royal Bank of Scotland Group . The Fed also nixed Citigroup Inc.'s (C) plan, saying the firm didn't make sufficient progress in improving risk-management and control practices.

In London, shares of HSBC shed 0.9%, and Royal Bank of Scotland shares fell 1.3%. Santander shares in Madrid swung down by 0.1%.

Regional equities had opened lower, following up on accelerated selling Wednesday on Wall Street after U.S. President Barack Obama urged European leaders to join the U.S. in a unified response against Russia over its annexation of the Ukrainian breakaway region of Crimea. Russia's Micex index lost 1.7% on Thursday.

Spotlight Ideas's Stephen Pope said in emailed comments that he remains positive on the outlook for large-cap European equities, as their ability to generate revenue on a global basis "provides a healthy immunization from any potential European downturn if the tension with Russia were to become more serious. The running undercurrent is that the ECB will seek additional ways to boost the economy, and try and finesse a way to bring about a fall in the euro."

The International Monetary Fund on Thursday said it reached a deal to provide up to $18 billion to Ukraine as part of an economic reform program for the country. Changes required for the aid package may be "painful," Ukraine's central bank chief Stepan Kubiv reportedly said.

In France, a survey showed growth in consumer confidence in March. Insee, the national statistics agency, said the index rose to 88, from 85 in February, returning to a level seen in July 2012. France's CAC 40 narrowed its decline after the data, but returned to a deeper loss of 0.5%, at 4,362.82.

Germany's DAX 30 gave up an earlier advance and fell 0.2% to 9,427.69.

The U.K.'s FTSE 100 fell 0.6% to 6,568.81, held back in part by declines among miners and banks. Meanwhile, the U.K. regulator overseeing the electricity and gas markets called for an investigation of providers over concerns about stalled competition. Shares of British Gas owner Centrica PLC reversed course and rose 0.6%, but SSE PLC remained lower, by 2.8%.

Outside of equities, the British pound (GBPUSD) jumped above $1.66 against the U.S. dollar after February retail-sales figures beat analyst expectations.

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