Exhibit 99.49 MBNA MASTER CREDIT CARD TRUST II SERIES 2000-E KEY PERFORMANCE FACTORS August 31, 2000 Expected B Maturity 05/17/2010 Blended Coupon 7.9030% Excess Protection Level 3 Month Average 4.18% August, 2000 5.35% July, 2000 5.78% June, 2000 1.40% Cash Yield19.12% Investor Charge Offs 4.51% Base Rate 9.25% Over 30 Day Delinquency 4.84% Seller's Interest10.94% Total Payment Rate14.32% Total Principal Balance$55,220,806,818.68 Investor Participation Amount$590,000,000.00 Seller Participation Amount$6,039,606,300.19