>1U41_1|Chains A, B, C, D|Nuclear factor NF-kappa-B p105 subunit|Mus musculus (10090) ASNLKIVRMDRTAGCVTGGEEIYLLCDKVQKDDIQIRFYEEEENGGVWEGFGDFSPTDVHRQFGIVFKTPKYKDVNITKPASVFVQLRRKSDLETSEPKPFLYYPE