Fig. 2: Structural organization of the SOI–NB complex.
From: Structural basis of the Meinwald rearrangement catalysed by styrene oxide isomerase
a, Side view of the SOI–NB complex. b, One nanobody binds to the periplasmic loops of two adjacent protomers. Periplasmic loop 1 (PL1) of one subunit is shown in grey and periplasmic loop 2 (PL2) of a neighbouring SOI protomer is shown in blue. c,d, Details of the interaction between the SOI and nanobody. c, Interacting amino-acid residues of PL1 and PL2 are shown in white and cyan, respectively. The nanobody is shown as a space-filling model in orange. d, Interacting amino acids of NB-CDR1, NB-CDR2 and NB-CDR3 are labelled in yellow, brown and orange, respectively. e, The interaction between nanobodies is mediated by four residues that are conserved among nanobodies.
