** Weakness seen from UK banks amid broad market sell-offand as UBS cuts PTs - of HSBC, Standard Chartered and Barclays (shares in trio down c2%)
** On Barclays, UBS says market too optimistic on investmentbanking revenues, will likely struggle more in future; but keeps"Buy" rating as thinks shares fallen too much in recent weeks
** UBS lowers its EPS estimates on HSBC by 7-9 pct in2016-19
** Lloyds remains UBS's top pick; says bank has more room tomanage interest income than the market believes
** Cuts RBS PT to 350p from 363p, Barclays to 215p from302p, Lloyds PT to 88p from 97p, HSBC to 520p from 540p, andStanChart to 510p from 609p
** Banking sector at large -1.3%, weighed down bythe oil and commodities slump
** RBS and Lloyds buck weak trend, up 1% (RM: aastha.agnihotri.thomsonreuters.com@reuters.net)