| P16521 | DB16833 | 2iw3 | ADP | A | 1973 | e2iw3A1 | Helical bundle domain in elongation factor 3A | Helical bundle domain in elongation factor 3A | Helical bundle domain in elongation factor 3A | 4HB |
| P16521 | DB16833 | 2iw3 | ADP | A | 1973 | e2iw3A2 | Repetitive alpha hairpins | ARM repeat | ARM repeat | n/a |
| P16521 | DB16833 | 2iw3 | ADP | A | 1973 | e2iw3A4 | P-loop domains-like | P-loop domains-related | P-loop containing nucleoside triphosphate hydrolases | ABC_tran |
| P16521 | DB16833 | 2iw3 | ADP | B | 1977 | e2iw3B1 | Repetitive alpha hairpins | ARM repeat | ARM repeat | n/a |
| P16521 | DB16833 | 2iw3 | ADP | B | 1977 | e2iw3B2 | P-loop domains-like | P-loop domains-related | P-loop containing nucleoside triphosphate hydrolases | ABC_tran |
| P16521 | DB16833 | 2iw3 | ADP | B | 1977 | e2iw3B5 | Helical bundle domain in elongation factor 3A | Helical bundle domain in elongation factor 3A | Helical bundle domain in elongation factor 3A | 4HB |