BR187–385 adopts a fold that is distantly related to the MSCRAMM-typical DEv-IgG fold. Both CnaA-subdomains of Fap1 (PDB: 2X12) and GspB (3QD1), as well as the N3 subdomain of ClfB (3AU0), superimpose to BR187–385 with r.m.s.d. values of 3.0, 3.2 and 3.9 Å, despite sequence identities of only 15%, 8% and 5% (see electronic supplementary material, figure S2 and supplemental movies), respectively. The fold of BR187–385 is distantly related to the canonical DEv-IgG fold displayed by the N3 domain of ClfB. Topology diagrams of the DEv-IgG fold variants are designated and colour-coded according to [8,19,21].