Fig. 3. (a) Human serum albumin (HSA) modified with recognition motifs at single unpaired cysteine (Cys-34). Adapted with permission from ref. 20. Copyright 2013 American Chemical Society. (b) Biotin recognition motif incorporated through disulfide modification on the hormone peptide, somatostatin. Adapted with permission from ref. 62. Copyright 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. (c) Insulin variant (Insulin X2) modified with bipyridine recognition motif at LysB29Nε. (d) Two different catalase PBs modified with complementary oligonucleotide sequences assembles into a binary crystalline structure. Adapted with permission from ref. 74. Copyright 2015 National Academy of Science.
