>4JXT_2|Chain B|DNA-directed RNA polymerase II subunit RPB1|Homo sapiens (9606)
XSPSYSPTSPSYSPTSPSYSX
>4JXT_1|Chain A|Regulation of nuclear pre-mRNA domain-containing protein 1A|Homo sapiens (9606)
GMSAFSEAALEKKLSELSNSQQSVQTLSLWLIHHRKHSRPIVTVWERELRKAKPNRKLTFLYLANDVIQNSKRKGPEFTKDFAPVIVEAFKHVSSETDESCKKHLGRVLSIWEERSVYENDVLEQLKQALYGDKKPRK