(Adds Provident, Bank of Commerce)

Oct 27 (Reuters) - Sixteen U.S. banks have signed up for the government's offer of a cash injection, in addition to the nine that joined the program initially. The injections are a bid to revive the sector, which has suffered since lending has dried up and many loans have gone bad.

The U.S. Treasury Department plans to provide funds for 20 to 22 lenders in the current round of a $250 billion bank recapitalization program.

Nine of the largest U.S. banks, including JPMorgan Chase & Co JPM.N and Citigroup C.N , received the first $125 billion of capital infusions two weeks ago.

A list of the additional 16 banks that have announced they will use the government funds follows:

PNC Financial Services Group Inc PNC.N $7.7 billion

Capital One Financial Corp COF.N $3.55 billion

Regions Financial Corp RF.N $3.5 billion

SunTrust Banks Inc STI.N $3.5 billion

BB&T Corp BBT.N $3.1 billion

KeyCorp KEY.N $2.5 billion

Comerica CMA.N $2.25 billion

State Street Corp STT.N $2.0 billion

Northern Trust Corp NTRS.O $1.5 billion

Huntington Bancshares HBAN.O $1.4 billion

First Horizon National Corp FHN.N $866 million

City National Corp CYN.N $395 million

Valley National Bancorp VLY.N $330 million

UCBH Holdings Inc UCBH.O $298 million

Washington Federal WFSL.O $200 million

First Niagara Financial Group FNFG.O $186 million

NOTE: Fifth Third Bancorp FITB.O said on Sunday it expected to receive Treasury approval for $3.4 billion. West Bancorp WTBA.O said on Friday it was seeking shareholder approval to raise between $12 million and $36 million under the Treasury program.