Moody's downgrade of the US sovereign rating sparked a chain reaction. On Monday, Moody's downgraded the deposit ratings of major US banks, including Bank of America (BAC.US) and JPMorgan (JPM.US) , citing the downgrade of the US government rating as an indication of reduced ability to support high-rated debt.The long-term deposit ratings of subsidiaries of Bank of America, JPMorgan, and Wells Fargo (WFC.US) were all downgraded by one notch to Aa2, which is Moody's third-highest rating. Related NewsCentral Parity of USD/ RMB Dips 15 bps to 7.1931Additionally, Moody's downgraded the senior unsecured debt ratings of certain subsidiaries of Bank of America and BNY Mellon (BK.US) from Aa1 to Aa2.(Real-time Streaming US Stocks Quote; Except All OTC quotes are at least 15 minutes delayed.)