>1YX6_1|Chain A|26S proteasome non-ATPase regulatory subunit 4|Homo sapiens (9606)
MGHHHHHHHHHHSSGHIEGRHMLGLGASDFEFGVDPSADPELALALRVSMEEQRQRQEEEARRAAAASAAEAGIATTGTEDSDDALLKMTISQQEFGRTGLPDLSSMTEEEQIAYAMQMSLQGAEFGQAESA
>1YX6_2|Chain B|Ubiquitin|Homo sapiens (9606)
MQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDYNIQKESTLHLVLRLRGGRDPNSSSVDKLAAALEHHHHHH