4v5y DX 4.45 BS01 rna DB 0 K2 Q38 Q39 S40 H41 K44 R47 R48 A51 R52 T55 K2 Q38 Q39 S40 H41 K44 R47 R48 A51 R52 T55 ? 0000027,0002181,0003735,0005737,0005840,0006412,0019843,0022625,1990904 P0A7M6 17660832 1 ~ 2903 MKAKELREKSVEELNTELLNLLREQFNLRMQAASGQLQQSHLLKQVRRDVARVKTLLNEKAGA