* Media says 4 bln lira withdrawn in bid to sink bank
* CEO says sympathiser of cleric who battling Erdogan
* Bank already had good liquidity for U.S. stimulus cuts
* Says "smear campaigns" will damage entire banking sector
By Ece Toksabay and Ebru Tuncay
ISTANBUL, Jan 22 (Reuters) - Turkish Islamic lender Bank Asya said it had weathered mass deposit withdrawals, which the media said were orchestrated by government supporters as part of a backlash against a corruption scandal blamed on an influential cleric.
Turkish media say state-owned companies and institutional depositors loyal to Prime Minister Tayyip Erdogan have withdrawn 4 billion lira ($1.79 billion), some 20 percent of the bank's total deposits, over the last month to try to sink the lender.
The government has declined to comment.
Bank Asya's chief executive Ahmet Beyaz said the bank's founders included sympathisers of cleric Fethullah Gulen, who officials say is behind the corruption investigation posing one of the biggest challenges to Erdogan's 11-year rule.
But he said the bank was not at risk.
"The deposit withdrawal was a significant sum, but new deposits worth more than half that amount were placed in the bank, making it possible for us to manage our liquidity," Beyaz told Reuters in an interview late on Tuesday.
He said the new deposits came from ordinary citizens, supportive of the bank and its ethos.
Despite being a sympathiser of the U.S.-based cleric, Beyaz underlined that his bank did not belong to Gulen's Cemaat religious community network: "This bank does not belong to the Cemaat. Its founders include people close to the Cemaat."
Erdogan has reacted furiously to the corruption investigation, decrying an attempted "judicial coup" his supporters see as orchestrated by Cemaat. He has reassigned thousands of police officers, more than a hundred judges and prosecutors, and purged official bodies of executives he suspects of being close to the cleric.
Beyaz declined to say how much money had been withdrawn, but said the bank had been "comfortably positioned" on liquidity due to expectations the U.S. Federal Reserve would cut the stimulus that sent cheap cash flowing to markets such as Turkey.
"Some big companies withdrew their deposits upon request, but they may change their minds in time and bring their deposits back. I don't believe in animosities in business," Beyaz said.
Bank Asya's deposits at the end of third quarter of 2013 were 19.5 billion lira.
Beyaz warned "smear campaigns" about lenders' health would create systematic risks for the Turkish banking system after pro-government media speculated that his bank could be seized by Turkey's Saving Deposit Insurance Fund because it was illiquid.
"Bank Asya has a capital adequacy ratio of 14.8 percent, is constantly supervised and audited, and is without a single negative report against it. Any action against such a bank would be impossible to explain to the world," Beyaz said.
The political turf war sparked by the corruption scandal has driven investors away from Turkish assets in recent weeks, sending the lira to record lows. The turmoil comes at a bad time for Turkey, when the reduction in U.S. monetary stimulus is already hammering emerging market assets.
Erdogan has cast both the corruption probe and anti-government protests last summer as part of a foreign-backed plot to undermine Turkey's international standing.
Beyaz said the bank expected little or no impact from the deposit withdrawal on its 2014 targets - Bank Asya expects loan growth of 20 percent in 2014, asset growth of 22 percent and deposit growth of 18 percent.
The lender is also planning sukuk issues worth $500 million and 800 million lira this year. ($1 = 2.2403 Turkish liras) (Editing by Alexandra Hudson and Elizabeth Piper)