3j7p SK 3.5 BS01 rna S2 0 M1 L2 M3 K5 K25 K47 Q50 S51 S54 R55 F62 M1 L2 M3 K5 K25 K47 Q50 S51 S54 R55 F62 ? F1RZ28 24930395 1 ~ 1869 MLMPKKNRIAIYELLFKEGVMVAKKDVHMPKHPELADKNVPNLHVMKAMQSLKSRGYVKEQFAWRHFYWYLTNEGIQYLRDYLHLPPEIVPATLRRSR