>6XKB_1|Chains A, B, C, D, E|SR-related and CTD-associated factor 4|Homo sapiens (9606) GMDAVNAFNQELFSLMDMKPPISRAKMILITKAAIKAIKLYKHVVQIVEKFIKKCKPEYKVPGLYVIDSIVRQSRHQFGTDKDVFGPRFSKNITATFQYLYLCPSEDKSKIVRVLNLWQKNGVFKIEIIQPLLDMAAGTS >6XKB_2|Chains F, G, H[auth I], I[auth J], J[auth K]|S2,S5p-CTD peptide|Homo sapiens (9606) XSPSYSPTSPSYSPTSPSYS