LONDON (Standard&Poor's) Feb. 22, 2007—Standard&Poor's Ratings Services said today that it assigned its preliminary credit ratings to the £350.000 million mortgage-backed floating-rate notes, plus an overissuance of £4.725 million excess-spread-backed floating-rate notes to be issued by Eurohome UK Mortgages 2007-1 PLC (see list below). Eurohome UK Mortgages 2007-1 is the first transaction to securitize residential mortgages offered in the U.K. by Deutsche Bank AG's newly established U.K. mortgage origination arm, db mortgages (a brand of DB UK Bank Ltd.). Five classes of notes will be issued that, following prefunding, will be collateralized against £350 million of mortgages. In addition, the issuer will offer a class C note backed solely by excess spread. The completion mortgage portfolio