| SCOP superfamily ID | superfamiily description | corresponding fold description |
|---|---|---|
| b.52.2 | ADC-like | Double psi beta-barrel barrel, closed; n=6, S=10; complex topology with crossover (psi) loops |
| e.29.1 | beta and beta-prime subunits of DNA dependent RNA-polymerase The catalytic site is formed by the association of two double-psi beta-barrel domains, one from each subunit ! | beta and beta-prime subunits of DNA dependent RNA-polymerase Multidomain subunits of complex domain organization |