>d1k2db2 d.19.1.1 (B:5-92) Class II MHC beta chain, N-terminal domain {Mouse (Mus musculus), I-AU} rhfvvqfqpfcyftngtqriryvtryiynreeylrfdsdvgeyravtelgrpdaeyynkq ylertraeldtvcrynyeetevptslr